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Professor KR Koswattage

Professor

Technology

Email : koswattagekr@appsc.sab.ac.lk

    Qualifications

  • Ph.D., Kobe University, March 2012

    M.Sc., Kobe University, March 2009

    B.Sc. (Honors), Special degree in Physics, University of Colombo, 2004

    Profile

  • Professor Kaveenga Rasika Koswattage (K.R. Koswattage) earned his PhD from Kobe University, Japan, in 2012. Prior to this, he obtained his BSc special degree in Physics from the University of Colombo in 2004 and his MSc in Physics from Kobe University in 2009. Following his doctoral studies, he served as an Assistant Professor at Chiba University, Japan, from 2012 to 2016. Currently, he holds the position of Professor at Sabaragamuwa University of Sri Lanka and has been appointed as the Dean of the Faculty of Technology in 2022.

    His research interests primarily focus on surface and interface analysis and characterization of various organic, inorganic, and biomaterials using synchrotron spectroscopies in the VUV and soft x-ray regions. Additionally, he is involved in the study of nanomaterials and their applications, alongside nanodevices and their characterization.

    Professor Koswattage recently secured a significant research grant totaling more than 370 million LKR (1.1 million USD) from the Asian Development Bank (ADB) as the Principal Investigator. His outstanding contributions to academia and research have been widely recognized through numerous prestigious awards.

    His contributions to academia and research have been recognized with numerous national-level prestigious awards, including the Presidential Awards and National Research Council Awards. 

    Between 2020 and 2024, he was honored with the Most Outstanding Senior Researcher Award in 2020, 2023, and 2024, as well as the Excellence in Top-Tier Journal Publication Award in both 2023 and 2024. His exceptional research achievements also earned him the title of Best Researcher – Faculty of Technology in 2021 and recognition as the recipient of the highest amount of research grants in 2022 at Sabaragamuwa University of Sri Lanka. These accolades highlight his dedication to advancing scientific research, securing competitive funding, and making a lasting impact in his field. 

    In addition to his role at Sabaragamuwa University, Professor Koswattage serves in an honorary capacity as an Adjunct Professor at the General Sir John Kotelawala Defence University.

    HONORS

    • Most Outstanding Senior Researcher in 2024, Sabaragamuwa University of Sri Lanka
    • Excellence in Top-Tier Journal Publication 2024 Sabaragamuwa University of Sri Lanka
    • Most Outstanding Senior Researcher in 2023, Sabaragamuwa University of Sri Lanka
    • Excellence in Top-Tier Journal Publication 2023 Sabaragamuwa University of Sri Lanka
    • Recipient of the highest amount of research grants in 2022 Sabaragamuwa University of Sri Lanka
    • Best Researcher – Faculty of Technology in 2021, Sabaragamuwa University of Sri Lanka
    • Most Outstanding Senior Researcher in 2020, Sabaragamuwa University of Sri Lanka
    • NRC merit award 2019, Scientific Publication for the publication in 2017
    • The President's Awards 2018 for Scientific Publication for the publication in 2016, 19th November 2018, Colombo, Sri Lanka
    • Best poster award, for the poster “Site selective adsorption of atomic deuterium on a hexagonal boron nitride (h-BN) thin film”K.R.Koswattage, I. Shimoyama, Y. Baba, T. Sekiguchi, K. Nakagawa The 6th International Conference on DVXα method, Daejeon, Korea, 2010.
    • Best research award for the research work of “Density of states evaluation of an insulating polymer by high-sensitivity ultraviolet photoemission spectroscopy”T.Sato, K.R. Koswattage, Y. Nakayama, H.Ishii18th Electrostatic conference of Japan, 2017-March, Tokyo University, Japan
    • Research award (Student section), for the poster “Modification of electronic state of DNTT monolayer on Au(111) surface by controlling the molecular arrangement” Y. Hasegawa, T. Hosakai, Y. Wakayama, K.R. Koswattage, Y. Yamada, M. Sasaki UVSOR symposium 2015, Okazaki, Japan, November 2015.
    • Obtained fellowship of Fellow of Advanced Science as a research student at Japan Atomic Energy Agency, Tokaimura, Ibaraki, Japan, April 2008- March 2012.   
    • Obtained the Japanese Government Scholarship (Monbukagusho) for doctoral study.  Kobe University, April 2009- March 2012. 
    • Obtained the Japanese Government Scholarship (Monbukagusho) for 2nd year of master’s study. Kobe University, April 2008- March 2009. 

    University/Faculty Positions

    • Dean, Faculty of Technology (Current position) 
    • Deputy Project Director, STHRD project (Current position)
    • Director/ Career Guidance Unit 2021/2022
    • Head – Department of Engineering Technology, Sabaragamuwa University –2019-2022
    • Coordinator, Establishment of Faculty of Engineering
    • Coordinator, Curriculum Development, Engineering Technology (2018/2019).
    • Coordinator, Curriculum Development, Proposed new Degree Program (Computational Technology)
    • Faculty Coordinator, Quality Assurance (2018-2022).
    • Faculty Coordinator, University Business Cell (2019/2020). 
    • Chair person, ICSUSL 2019.
    • Faculty representative, Staff Development Center (2019 -2022)
    • PIU staff -  STHRD project (2018-2021)
    • Coordinator- Proposed building complex for Faculty of Technology
    • Board Chair/ Member- FGS, CIKCS in SUSL

    National Level Positions

    • Adjunct Professor (Honorary position), at General Sir John Kotelawala Defence University.  
    • Board of Governors- University of Vocational Technology
    • Board Director, Skills Development Fund, Ministry of Skills Development – 2020-2023
    • Member of the Steering Committee on Establishment of City Universities- Sri Lanka
    • Consultant –Designing industrial base course/ Department of Physics – Eastern University (AHEAD/SCI/CON/19/9)

     

    EXTERNAL FUNDING RECEIVED

    • ADB/ Competitive Research Grant 1.1 M USD (More than 350 Million LKR) (CRG R2/SB1)  – Principal Investigator
    • STHRD Research Grant 18.5 M LKR - "Optimizing Mechanical Properties of Floor Tiles and Concretes Using Sugarcane Bagasse
      Ash" - Co-Principal Investigator
    • Development of an automated cricket training system Co-Principal Investigator- 30,000 USD
    • JSPS Grant-in-Aid for Scientific Research 2013–2015,

    Research Project Number: 25288114,  Co-Investigator, 1,500,000 JPY (Total 9,750,000 JPY)

    • 2012 Global COE program, Chiba University

    Principal Investigator, 700,000 JPY

    Membership of Professional Bodies/Associations

    • The Physical Society of Japan-member.
    • The Chemical Society of Japan-member.
    • Japanese Society of Radiation Chemistry-member.
    • The Surface Science Society of Japan-member.
    • Japanese Society for Synchrotron Radiation Research-member.
    • Institute of Physics Sri Lanka-member.

    Current Research Projects

  • SUCESSFUL RESEARCH PROPOSALS (only as the principal investigator)

     

    “Investigation of the interaction of L-cysteine with noble metal surfaces & nanoparticles”

    High Energy Accelerator Research Organization (KEK), Japan - Joint research program

    Project No: 2015G068 (2015-2017)

     

    “Determination of the interface electronic structure of L-cysteine with noble metal nanoparticles”

    Joint research program of Institute for molecular science, Japan.

    Project No: 27-509 (2015-2016)

     

    “Interaction of L-cysteine with noble metal nanoparticles studies by photoemission spectroscopy”

    Joint research program of Institute for molecular science, Japan.

    Project No: 26-555 (2014-2015)

     

    “Electronic structure of amino acids assembly studies by UPS”

    Joint research program of Institute for molecular science, Japan.

    Project No: 25-562 (2013-2014)

     

    “Electronic structure of amino acids assembly studies by UPS”

    Joint research program of Institute for molecular science, Japan.

    Project No: 24-824 (2012-2013)

    Recent Publications

  • LIST OF ACEDEMIC PUBLICATIONS 

    1. Comparative Study on the Thermal Properties of Engine Oils and Their Nanofluids Incorporating Fullerene-C60, TiO2, and Fe2O3 at Different Temperatures

    C Galpaya, A Induranga, V Vithanage, M Mantilaka, KR Koswattage,

    Energies 17, 732 (2024)

    1. Thermal Properties of TiO2 Nanoparticles Treated Transformer Oil and Coconut Oil

    A Induranga, C Galpaya, V Vithanage, KR Koswattage,

    Energies, 17, 49, (2024)

    1. Enhanced wide spectrum photocatalytic activity by in-situ magnetite-graphite nanoplatelets heterostructure

    SAL Sameera, NP Edirisinghe, Yasun Y Kannangara, Shadeepa Karunarathne, KR Koswattage, HCS Perera, G Das, MMMGPG Mantilaka, WPSL Wijesinghe

    IEEE Access, 11, 68912, (2023)

    1. Synthesis of an eco-inspired anticorrosive composite for mild steel applications

    Anoja Kawsihan, DMSN Dissanayake, NPW Rathuwadu, HCS Perera, KEDYT Dayananda, KR Koswattage, Rajesh Mahadeva, Arnab Ganguly, G Das, MMMGPG Mantilaka

    RSC advances 13 (41), 28852 (2023)

    1. Investigation of Pozzolanic Properties of Sugarcane Bagasse Ash for Commercial Applications

    N Prabhath, BS Kumara, V Vithanage, AI Samarathunga, N Sewwandi, HH Damruwan, S Lewangamage,  KR Koswattage

    ACS Omega, 8, 13, 12052 (2023)

     

    1. The blending effect of natural polysaccharides with nano-zirconia towards the removal of fluoride and arsenate from water

    M.S. Fernando, A.K.D.V.K. Wimalasiri,  K. Dziemidowicz, G.R Williams,

    K.R. Koswattage, DP Dissanayake, KM Nalin de Silva, Rohini M de Silva

    R. Soc. open sci.10, 221514 (2023)

     

    1. An XPS Study of the Ag-S interface of L-Cysteine Films on Silver Surface

    G. D. K. V. Maduwantha, Chathudina Janitha Liyanage, KR Koswattage

    International Journal of Thin Film Science and Technology 12 (1), 75 (2023)

     

    1. A Review on the Optimization of the Mechanical Properties of Sugarcane-Bagasse-Ash-Integrated Concretes

    N Prabhath, BS Kumara, V Vithanage, AI Samarathunga, N Sewwandi, KR Koswattage

    Journal of Composites Science 6 (10), 283 (2022)

     

    1. “Ultraviolet photoelectron spectroscopic study on the interface electronic structure of the L-cysteine on Pd surface”

    KR Koswattage, CJ Liyanage, G Maduwantha

    Surface and Interface Analysis, 54, 5, 561-566 (2022)

     

    1. Interests and attitudes of G.C.E. (A/L) physical science stream students on university education in STEM: A case study in Sri Lanka

    Ashan Induranga, Kaveendra Maduwantha, Buddhika Sampath, Neranga Hettiwatta, Vimukthi Vithanage, Hasarinda Kariyawasam, Amalka Indupama, Chathudina J Liyanage, Kaveenga Koswattage*

    Global Journal of Engineering and Technology Advances

    10(01), 033–038 (2022)

     

    1. “Structure–Activity Relationship of Lanthanide-Incorporated Nano-Hydroxyapatite for the Adsorption of Fluoride and Lead”

    A.K.D.V.K. Wimalasiri, M.S. Fernando, K. Dziemidowicz, G.R Williams,

    K.R. Koswattage, DP Dissanayake, KM Nalin de Silva, Rohini M de Silva

    ACS Omega, 6, 21, 13527–13543 (2021)

     

    1. “Biopolymer-Based Nanohydroxyapatite Composites for the Removal of Fluoride, Lead, Cadmium, and Arsenic from Water”

    M.S. Fernando, A.K.D.V.K. Wimalasiri,  K. Dziemidowicz, G.R Williams,

    K.R. Koswattage, DP Dissanayake, KM Nalin de Silva, Rohini M de Silva

    ACS Omega, 6, 12, 8517-8530 (2021)

     

     

    1. “Optical absorption cross-section of DNA bases, thymine and guanine, in

    the energy region from 3.1 to 250 eV (5–400 nm)”

    K.R. Koswattage, Y. Izumi , K. Nakagawa

    Quantum Beam Science 4 (3), 30 (2020)

     

    1. “Excited-state dynamics of room-temperature phosphorescent organic materials based on monobenzil and bisbenzil frameworks”

    K Maduwantha, S Yamada, KR Koswattage, T Konno, T Hosokai

    Materials 13(17), 1-12 (2020)

     

    1. Generating electricity using produced mechanical energy in a gymnasium”

    D. K. A. Induranga, G. D. K. V. Maduwantha, H. G. N. A. Sirisooriya, W. S. M. Fernando, P. P. Weerakkodi, H. D. C. N. Gunawardena and K. R. Koswattage

    Journal of Multidisciplinary Engineering Science Studies, 6, 8, 3500 (2020)

     

    1. “Influence of intermolecular interactions on the formation of spontaneous orientation polarization in organic semiconducting films”

    Y Noguchi, K Osada, K Ninomiya, HDCN Gunawardana, K.R Koswattage

    Journal of the Society for Information Display,

    https://doi.org/10.1002/jsid.956 (2020)

     

    1. “Development of fluorinated benzils and bisbenzils as room-temperature phosphorescent molecules”

    S Yamada, T Higashida, Y Wang, M Morita, T Hosokai, K Maduwantha,

    K.R. Koswattage, T. Konno

    Beilstein Journal of Organic Chemistry 16 (1), 1154-1162, (2020)

     

    1. “Photoemission investigation of interaction between L‐cysteine and silver surface”

    K.R. Koswattage and Hisao Ishii

    Surface and Interface Analysis, 52, 8, 513-517 (2020)

     

    1. “Review on applications of synchrotron-based X-ray techniques in materials characterization”

    P. Sedige, M. Kohedi, K.R. Koswattage

    X-Ray Spectrometry, 49, 3, 348-373 (2020)

     

    1. “Significant reduction in the hole-injection barrier by the charge-transfer state formation: Diindenoperylene contacted with silver and copper electrodes”

    T.Hosokai, K. Yonezawa, J. Yang, K.R. Koswattage, S.Kera

    Organic Electronics, 49, 39, (2017)

     

    1. “Density of states evaluation of an insulating polymer by high-sensitivity ultraviolet photoemission spectroscopy”

    T.Sato, K.R. Koswattage, Y. Nakayama, H.Ishii

    Applied Physics Letters, 110, 11,111102, (2017)

     

    1. “Overlapping of Frontier Orbitals in Well-Defined DNTT and Picene Monolayers”,

    Y. Hasegawa, Y.Yamada, T. Hosokai, K.R. Koswattage, Masahiro Sasaki

    J. Phys. Chem. C, 120, 38, (2016)

     

    1. “A Theoretical Interpretation of NEXAFS of a Deuterated Hexagonal Boron Nitride Thin Film”

    K.R. Koswattage, I. Shimoyama, Y. Baba, T. Sekiguchi, K. Nakagawa,

    International Journal of Materials Science and Engineering, 4, 4, 179, (2016)

     

    1. “Interface electronic structures of the L-cysteine on noble metal surfaces studied by ultraviolet photoelectron spectroscopy”,

    K.R. Koswattage, H. Kinjo, Y. Nakayama, H. Ishii

    e-J. Surf. Sci. Nanotech. 13, 373, (2015)

     

    1. “Electronic Structures of a Well-Defined Organic Hetero-Interface: C60 on Pentacene Single Crystal”,

    M. Yamamoto, Y. Nakayama, Y. Uragami, H. Kinjo, Y. Mizuno, K. Mase,

    K. R. Koswattage, H.Ishii

    e-J. Surf. Sci. Nanotech. 13, 59, (2015)

     

    1. Electronic Structure of Chlorophyll a Solution Investigated by Photoelectron Yield Spectroscopy

    Y. Takeda, H. Ezawa, T. Miyauchi, H. Kinjo, K. R. Koswattage, Y. Nakayama, H. Ishii,

    Applied Mechanics and Materials, 763, 58, (2015)

     

    1. "Determination of the highest occupied molecular orbital energy of pentacene single crystals by ultraviolet    photoelectron and photoelectron yield spectroscopies"

    Y. Nakayama, Y. Uragami, M. Yamamoto, S. Machida, H. Kinjo, K. Mase, K.R Koswattage, H. Ishii  

    Jpn. J. Appl. Phys., 53, 01AD03, (2014).

     

    1. “Full picture of valence band structure of rubrene single crystals probed by angle-resolved and excitation-energy-dependent photoelectron spectroscopy”,

    Y. Nakayama, Y. Uragami, S. Machida, K. R. Koswattage,  H. Setoyama,  T. Okajima, K. Mase, H. Ishii,

    Appl. Phys. Express, 5, 111601, (2012).

     

    1. “Selective adsorption of atomic hydrogen on a h-BN thin film”,

    K.R. Koswattage, I. Shimoyama, Y. Baba, T. Sekiguchi, K. Nakagawa,

    J. Chem. Phys., 135, 014706 - 1~13, (2011).

     

    1.  “Study on selective adsorption of deuterium on boron nitride using photon-stimulated ion- desorption”,

    K.R. Koswattage, I. Shimoyama, Y. Baba, T. Sekiguchi, K. Nakagawa,

    Appl. Surf. Sci., 258, 1561 -1564, (2011).

     

    1.  “Photoabsorption cross section of C60 thin films from the visible to vacuum ultraviolet”,

    H. Yagi, K. Nakajima, K.R. Koswattage, K. Nakagawa, C. Huang, S.I. Md. Prodhan, B.P. Kafle, H. Katayanagi, K. Mitsuke,

    Carbon, 47, 1152-1157, (2009).

     

    1. “Photoabsorption cross section of C70 thin films from the visible to vacuum ultraviolet”,

    J. Chem.Phys., 130, 234510 - 1~4, (2009).

    H. Yagi, K. Nakajima, K. R. Koswattage, K. Nakagawa, H. Katayanagi, K. Mitsuke,

     

     

    Proceedings papers, reports (reviewed)

     

    1.  “A Conceptual Overview: Integration of Bi-Directional Electric Vehicle (EV) Chargers for Effective Peak Grid Demand Management in Sri Lanka”

    DK Ashan Induranga, VP Vimukthi Tharaka, WMKG Perera, HVV Priyadarshana, KR Koswattage

    IEEE, 2023 Moratuwa Engineering Research Conference (MERCon), 732-735 (2023)

     

    1. “Comparative Study on the Mechanical Properties of Concrete by Substituting Cement with Sugarcane Bagasse Ash”

    S Sankeeth, BS Kumara, HGH Damruwan, HMST Herath, CS Lewangamage, KR Koswattage

    IEEE, 2023 Moratuwa Engineering Research Conference (MERCon), 155-160 (2023)

     

    1. “Ultraviolet photoelectron spectra of Lu2C90”

    T.Miyazaki, K.R. Koswattage, H.Shinohara and S.Hino

    UVSOR activity report 2016, UVSOR, 44, 58, August 2017

    ISSN 0911-5730

     

    1.  “Modification of the overlapping of the frontier orbitals”

    Y. Yamada, Y. Hasegawa, T. Maeda, T. Hosokai, K.R. Koswattage

    UVSOR activity report 2016

    UVSOR, 44, 116, August 2017

    ISSN 0911-5730

     

    1. “Determination of the interface electronic structure of L-cysteine/Ag(111) by Ultraviolet Photoelectron Spectroscopy and Photoelectron Yield Spectroscopy”,

    K.R. Koswattage, K. Hiroumi, Y. Nakayama & H. Ishii

    Advances in Future Manufacturing Engineering – Guohui Yang (Ed.)

    Taylor & Francis Group, London, 16-25, (2015)

    (ISBN 978-1-138-02817-3)

     

    1. “Reconstruction of the Beamline BL2B for Photoelectron Spectroscopy of Organic Materials”
      K. R. Koswattage, T. Ueba, Y. Nakayama, K. K. Okudaira H. Ishii and S. Kera

    UVSOR, 43, 116, 2016

    ISSN 0911-5730

     

    1. “Degradation of CH3NH3PbI3 to PbI2 Driven by Annealing in Vacuum”
      S. Tanaka, T. Kajikawa and K. R. Koswattage

    UVSOR, 43, 47, 2016

    ISSN 0911-5730

     

    1.  “Potassium Doping into Single Crystalline Organic Monolayer”
      T. Hosokai, Y. Hasegawa, M. Yano, K. R. Koswattage amd Y. Yamada

    UVSOR, 43, 47, 2016

    ISSN 0911-5730

    1.  Electronic Structures of Thienyl-Porphyrin Derivatives
      Y. Nakayama, A. Nakagawa, K. R. Koswattage, T. Aikawa, T. Kondo and M. Yuasa UVSOR, 43, 47, 2016 ISSN 0911-5730

     

    1. “Structural Requirements for Surface-Induced Aromatic Stabilization”

    T. Hosokai, K. Yonezawa, K. Kato, J. Yang, K. R. Koswattage, A. Gerlach,  F. Schreiber, N. Ueno, S. Kera

    MRS Proceedings, 1647, 348, (2014)

     

    1. “Reconstruction of the Beamline BL2B for Development of Photoelectron Spectroscopy for Organic Materials II”
      S. Kera, K. R. Koswattage, K. Yonezawa, Y. Nakayama, K. K. Okudaira and H. Ishii

    UVSOR Activity Report, 40, (2014).

     

    1.  “Direct Observation of Electronic Structure of Nylon-6,6 to Clarify the Contact Electrification Mechanism”

    T. Sato, K. R. Koswattage, Y. Nakayama, H. Ishii

    UVSOR Activity Report, 143, (2014).

     

    1.  “Electronic Structure of Chlorophyll-a Investigated by Photoelectron Spectroscopy and Photoelectron Yield Spectroscopy”

    Y. Takeda, H. Ezawa, T. Miyauchi, H. Kinjo, K. R. Koswattage, Y. Nakayama, H. Ishii

    UVSOR Activity Report, 126, (2014).

     

    1.  Investigation of Charge-Transfer Interaction by Metal Deposition on Organic Semiconducting Thin Films

    T. Hosokai, K. Yonezawa, R. Makino, K. R. Koswattage, K. K. Okudaira and S. Kera

    UVSOR Activity Report, 144, (2014).

     

    1.  “Electronic Structure of C60 / Pentacene Single Crystal pn – Heterojunction”

    M.Yamamoto, Y. Nakayama, Y. Uragami, K. Mase, K. R. Koswattage,  H. Ishii

    PF activity report, 30, (2013).

     

    1.  “HATCN on ITO: work function variation and influence of air exposure”, 

    K.R. Koswattage, A. Yoneyama, Y. Nakayama, H. Ishii,

    UVSOR Activity Report, 151, (2013).

     

    1.  “Efficiency of HATCN as a hole injection layer in a practical system”,  
      1. Yoneyama, K.R. Koswattage, Y. Nakayama, H. Ishii,

            UVSOR Activity Report, 150, (2013).

     

    1.  “Electronic structure of organic donor-acceptor interfaces of a squaraine dye and C60”, 

    Y. Nakayama, K.R. Koswattage, Y.Ozawa, H. Ishii,

    UVSOR Activity Report, 149, (2013).

     

    1. “Structural requirements for the charge-transfer state formation through surface-induced  aromatic stabilization ”, 

    T. Hosokai, Y. Yonezawa, K.R. Koswattage, N. Ueno, S. Kera,

    UVSOR Activity Report, 152, (2013).

     

    1.  “Reconstruction of the beamline BL 2B for development of photoelectron spectroscopy for organic materials”,  

    S. Kera, K.R. Koswattage, K. Yonezawa, J. P. Yang, Y. Nakayama, K. Okudaira, H. Ishii,

    UVSOR Activity Report, 38, (2013).

     

     

     

     

    1.  “Measurements of transmittance and refelectance of LiTi2O4 and UPS measurements of   multi-alkali surfaces”,

    R. Inagaki, T. Konomi, T. Tokushi, M. Katoh, E. Kako, S. Yamaguchi, Y. Kobayashi, N. Yamamoto, M. Hosoka, S. Shiraki, K.R. Koswattage, Y. Okano,

    UVSOR Activity Report, 152, (2013).

     

    1. . “Ultraviolet photoelectron spectroscopic study on the electronic structure of the L-cysteine ad-layers on the noble metal surfaces”,  

    K.R. Koswattage, Y. Nakayama, H. Ishii,

    UVSOR Activity Report, 90, (2012).

     

     

    1. . “Electronic structure of the pentacene single crystal in the valance region”,

    Y. Nakayama, Y. Uragami, M. Yamamoto, K. Mase, K.R.Koswattage, H. Ishii,

    PF Activity Report, 13A, (2012).

     

    1. .  “A theoretical interpretation of NEXAFS and XPS of a deuterated hexagonal boron nitride thin film”,

    K.R. Koswattage, I. Shimoyama, Y. Baba, T. Sekiguchi, K. Nakagawa,

    PF Activity Report, 27B, 61, (2011).

     

    1. . “Site-selective adsorption of atomic deuterium on a hexagonal boron nitride (h-BN) thin film”,

    K.R. Koswattage, I. Shimoyama, Y. Baba, T. Sekiguchi, K. Nakagawa,

    Proceedings of the 6th International Conference on DVXα method, Daejeon , Korea,

    Bullet. Soc. Disc. Variat. Xα 23, 205-212, (2010).

     

    1. . “Site selective adsorption of atomic deuterium on boron nitride thin film”,

    K.R. Koswattage, I. Shimoyama, Y. Baba, T. Sekiguchi, K. Nakagawa,

    PF Activity Report, 27B, 59, (2010).

     

    1. . “NEXAFS analysis of a P-doped carbon alloy with two dimensional anistrophy”, 

    Shimoyama, Y. Baba, T. Sekiguchi, K.R. Koswattage,

    PF Activity Report, 83, (2010).

     

     

    1. . “Photoabsorption Cross Section of C60 Thin Film from 1.3 to 42 eV”
      H. Yagi, K. Nakajima, K. R. Koswattage, K. Nakagawa, C. Huang, Md. S. I. Prodhan, B. P. Kafle, H. Katayanagi, K. Mitsuke

    UVSOR Activity Report, 68, (2008).

     

    1.  “Photoabsorption Cross Section of C70 Thin Films from the Visible to Vacuum Ultraviolet”,  

    H. Yagi, K. Nakajima, K. R. Koswattage, K. Nakagawa, H. Katayanagi and K. Mitsuke,

    UVSOR Activity Report, 68, (2008).

     

     

    1. . “Optical oscillator strength of DNA bases from 3 to 250eV and examination of the Thomas-Reiche-Kuhn sum rule”,

    K.R. Koswattage, Y. Izumi, M. Tanaka and K. Nakagawa,

    Proceedings of the 51st Conference of Japanese Society of Radiation Chemistry,

    Tsukuba, Japan, 159-160, (2008).

     

    International/National Conferences (Only the first author)

     

    Study on selective adsorption of deuterium on boron nitride using Photon-stimulated ion- desorption, K.R. Koswattage, I. Shimoyama, Y. Baba, T. Sekiguchi, K. Nakagawa, The 25th Conference of Japan Society for Synchrotron Radiation, January 6-9, 2012, Saga, Japan.

     Atomic hydrogen adsorption behavior of h-BN thin film on Ni(111), K.R. Koswattage, I. Shimoyama, Y. Baba, T. Sekiguchi, K. Nakagawa, The 31st Conference of Surface Science Society of Japan, December 15-17, 2011, Tokyo, Japan.

     Hydrogen adsorption behavior of h-BN thin film on Ni(111), K.R. Koswattage, I. Shimoyama, Y. Baba, T. Sekiguchi, K. Nakagawa, 22nd Annual meeting of Chemical Society of Japan – Ibaraki-ken, November 4, 2011, Tokai, Japan.

     Selective adsorption of atomic deuterium on BN thin film, K.R. Koswattage, I. Shimoyama, Y. Baba, T. Sekiguchi, K. Nakagawa, 15th International conference on thin films, November 8-11, 2011, Kyoto, Japan.

     Selective adsorption of atomic deuterium on BN thin film, K.R. Koswattage, I. Shimoyama, Y. Baba, T. Sekiguchi, K. Nakagawa, 28th Photon Factory Symposium, July 12-13, 2011, Tsukuba, Japan.

     Oscillator strength distribution of DNA bases from 3 to 250 eV, K.R. Koswattage, A. Mimoto, Y. Izumi, A. Imazu, M. Tanaka, M. Tanabe, K. Nakagawa, 37th International Conference on Vacuum Ultraviolet and X-Ray Physics, (VUVX 2010), July 11-16, 2010, Vancouver, BC, Canada.

     A rotatable photoelectron emission microscope combined with polarized synchrotron radiation, T. Sekiguchi, Y. Baba, I. Shimoyama, N. Hirao, A. Narita, M. Abdul, K.R. Koswattage, 37th International Conference on Vacuum Ultraviolet and X-Ray Physics, (VUVX 2010), July 11-16, 2010, Vancouver, BC, Canada.

     Selective adsorption of atomic deuterium on BN thin film, K.R. Koswattage, I. Shimoyama, Y. Baba, T. Sekiguchi, K. Nakagawa, The 91st Conference of Chemical Society of Japan March 26-29, 2011, Yokohama, Japan.

     Site-selective adsorption of atomic deuterium on BN thin film, K.R. Koswattage, I. Shimoyama, Y. Baba, T. Sekiguchi, K. Nakagawa, The 24th Conference of Japan Society for Synchrotron Radiation, January 6-9, 2011, Tsukuba, Japan.

     Site selective adsorption of atomic deuterium on BN thin film, K.R. Koswattage, I. Shimoyama, Y. Baba, T. Sekiguchi, K. Nakagawa, 65th Conference of Physical Society of Japan, September 23-26, 2010, Osaka, Japan.

     Site-selective adsorption of atomic deuterium on a hexagonal boron nitride thin film, K.R. Koswattage, I. Shimoyama, Y. Baba, T. Sekiguchi, K. Nakagawa, The 6th International Conference on DVXα method, August 4-6, 2010, Daejeon, Korea.

     Deuterium adsorption on hexagonal BN thin film on Ni(111), K.R. Koswattage, I. Shimoyama, Y. Baba, T. Sekiguchi, K. Nakagawa, The 23rd Conference of Japan Society for Synchrotron Radiation, January 6-9, 2010, Himeji, Japan.

     Study of hydrogen adsorption and desorption on boron nitride thin films by X-ray photoelectron spectroscopy, K.R. Koswattage, I. Shimoyama, Y. Baba, T. Sekiguchi, K. Nakagawa, 20th Annual meeting of Chemical Society of Japan – Ibaraki-ken, November 21, 2009, Hitachi, Japan.

     Study of hydrogen adsorption and desorption on boron nitride thin films by X-ray photoelectron spectroscopy, K.R. Koswattage, I. Shimoyama, Y. Baba, T. Sekiguchi, K. Nakagawa, The 11th International Conference on Electronic Spectroscopy and Structure, October 6–10, 2009, Nara, Japan.

     Optical oscillator strength of DNA bases from 3 to 250eV and examination of the Thomas-Reiche-Kuhn sum rule, K.R. Koswattage, Y. Izumi, M. Tanaka, K. Nakagawa, 51st Conference of Japanese Society of Radiation Chemistry, October 15-16, 2008, Tsukuba, Japan.

     Optical oscillator strength of DNA bases from 3 to 250eV and examination of the Thomas-Reiche-Kuhn sum rule, K.R. Koswattage, Y. Izumi, M. Tanaka, K. Nakagawa, 10th International Conference-Radiation Damage to DNA, June 8-12, 2008, Fukushima, Japan.

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