主に無機蛍光体材料の合成と発光特性評価を行っている。特に、放射線検出素子（シンチレータ）の新材料開発や、発光現象の原理解明に関する研究をメインとしている。材料の合成には固相合成や結晶育成技術を活用している。開発した材料を使った放射線検出器の試作など、材料設計から合成・評価・応用まで一貫した研究に取り組んでいる。

S. Kodama*, S. Kurosawa, K. Fujii, T. Murakami, M. Yashima, J. Pejchal, R. Kral, M. Nikl, A. Yamaji, M. Yoshino, S. Toyoda, H. Sato, Y. Ohashi, K. Kamada, Y. Yokota, A. Yoshikawa, Single-crystal growth, structure and luminescence properties of Cs2HfCl3Br3, Optical Materials, Vol.106, 109942 (2020)

R. Kral, P. Zemenova, V. Vanncek, A. Bystricky, M. Kohoutkova, V. Jary, S. Kodama*, S. Kurosawa, Y. Yokota, A. Yoshikawa, M. Nikl, Thermal analysis of cesium hafnium chloride using DSC-TG under vacuum, nitrogen atmosphere, and in enclosed system, Journal of Thermal Analysis and Calorimetry, Vol.141,1101 (2020)

V. Vanecek, R.Kral, J. Paterek, V.Babin, V.Jary, J.Hybler, S.Kodama*, S.Kurosawa, Y.Yokota, A.Yoshikawa, M.Nikl, Modified vertical Bridgman method: Time and cost effective tool for preparation of Cs2HfCl6 single crystals, Journal of Crystal Growth, Vol.533, 1 (2020)

S. Kodama*, S. Kurosawa, Y. Morishita, H. Usami, T. Torii, M. Hayashi, M. Sasano, T. Azuma, H. Tanaka, V. Kochurikhin, J. Pejchal, R. Kral, M. Yoshino, A. Yamaji, S. Toyoda, H. Sato, Y. Ohashi, Y. Yokota, K. Kamada, M. Nikl, A. Yoshikawa, Growth and scintillation properties of a new red-emitting scintillator Rb2HfI6 for the fiber-reading radiation monitor, IEEE Transactions on Nuclear Science, Vol.67, 1055 (2020)

S. Kodama*, S. Kurosawa, M. Ohno, Y. Morishita, H. Usami, M. Hayashi, M. Sasano, T. Azuma, H. Tanaka, V. Kochurikhin, A. Yamaji, M. Yoshino, S. Toyoda, H. Sato, Y. Ohashi, K. Kamada, Y. Yokota, A. Yoshikawa, T. Torii Fiber-reading radiation monitoring system using an optical fiber and red-emitting scintillator for ultra-high dose condition, Applied Physics Express, Vol.13, 047002 (2020)

S. Kodama*, S. Kurosawa, M. Ohno, A. Yamaji, M. Yoshino, J. Pejchal, R. Kral, Y. Ohashi, K. Kamada, Y. Yokota, M. Nikl, A. Yoshikawa, Development of a novel red-emitting cesium hafnium iodide scintillator, Radiation Measurements, Vol.124, 54 (2019)

S. Kodama*, S. Kurosawa, A. Yamaji, J. Pejchal, R. Kral, Y. Ohashi, K. Kamada, Y. Yokota, M. Nikl, A. Yoshikawa, Growth and luminescent properties of Ce and Eu doped Cesium Hafnium Iodide single crystalline scintillators, Journal of Crystal Growth, Vol.492, 1 (2018)

S. Kodama*, S. Kurosawa, J. Pejchal, R. Kral, A. Yamaji, Y. Ohashi, Y. Yokota, K. Kamada, M. Nikl, A. Yoshikawa, Growth and luminescent properties of Cs2HfCl6 scintillators doped with alkaline earth metals, IEEE Transactions on Nuclear Science, Vol.65, 2169 (2018)

　日本セラミックス協会、応用物理学会（結晶工学分科会、放射線分科会）