(b) Conferences

55. R. Shoji, Y. Kayama, S. F. Chichibu, and M. Sugiyama:

"Phase-transformation studies during simultaneous chalcogenization process using metalorganic sources for CuIn(S,Se)₂ thin films",
The 20th International Conference on Ternary and Multinary Compounds (ICTMC-20), Halle (Saale), Germany, Sep. 5-9, (2016), No. Chalcopyrites IV, 9:30 (oral).

54. M. Sugiyama, R. Shoji, Y. Kayama, and S. F. Chichibu:

"Reaction Mechanisms of CuIn(S,Se)₂ Thin Film Growth by the Chalcogenization Technique Using Organometallic Sources",
Materials Research Society, 2013 Spring Meeting, Symposium C: Thin-Film Compound Semiconductor Photovoltaics, San Francisco, CA, USA, Apr.1-5, (2013) No. C10.32 (poster).

53. Y. Kayama, R. Shoji, S. F. Chichibu, and M. Sugiyama:

"Phase-transformation studies on the sulfurization growth of In-rich CuInS₂ thin films using ditertiarybutylsulfide",
European Materials Research Society, 2012 Spring Meeting, Symposium B: Thin Film Chalcogenide Photovoltaic Materials, Strasbourg, France, May 15-17, (2012) No.P 1-1 (poster).

52. M. Sugiyama, C. Fujiwara, R. Shoji, and S. F. Chichibu:

"Sufurization Growth of CuInS₂ Thin Films and Solar Cells using Ditertiarybutylsulfide as a Less-hazardous Source",
37th IEEE Photovoltaic Specialists Conference (PVSC-37), Washington State Convention Center, Seattle, Washington., Jun. 19-24 (2011), Area2-156 (poster).

51. K. Ishikawa, Y. Kawasaki, S. F. Chichibu, and M. Sugiyama:

"Growth of ZnOSe buffer layers for CIGS solar cells by simple dry and continuous processes",
Materials Research Society 2011 Spring Meeting, Symposium D: Compound Semiconductors for Energy Applications and Environmental Sustainability, San Francisco, CA, USA, Apr.25-29, (2011), No.D15.10 (poster).

50. R. Shoji, C. Fujiwara, T. Shimizu, T. Sato, M. Sugiyama, and S. F. Chichibu:

"Growth of Cu(In,Al)(S,Se)₂ thin films by selenization and sulfurization",
Materials Research Society 2011 Spring Meeting, Symposium D: Compound Semiconductors for Energy Applications and Environmental Sustainability, San Francisco, CA, USA, Apr.25-29, (2011), No.D15.9 (poster).

49. M. Sugiyama, T. Yasuniwa, C. Fujiwara, S. F. Chichibu, and S. Kimura:

"Impacts of proton, alpha-ray, and gamma-ray irradiation on the optical and electrical properties of Cu(In,Ga)Se₂ thin films and solar cells",
The 9th International Workshop on Radiation Effects on Semiconductor Devices for Space Applications (RASEDA-9), Takasaki, Gunma, Japan, Oct.27-29 (2010) No. P-09 (poster).

48. M. Sugiyama, Y. Hirose, M. Warasawa, K. Takakura, S. Kimura, S. F. Chichibu, and H. Ohyama:

"Impacts of electron irradiation on the optical and electrical properties of CIGS thin films and solar cells",
The 17th International Conference on Ternary and Multinary Compounds (ICTMC-17), Baku, Azerbaijan, Sep. 27-30, (2010), No. P7-17 (poster).

47. C. Fujiwara, Y. Kawasaki, T. Sato, M. Sugiyama, and S. F. Chichibu:

"Growth of Cu(In,Al)(Se,S)₂ thin films by selenization and sulfurization for a wide bandgap absorber",
The 17th International Conference on Ternary and Multinary Compounds (ICTMC-17), Baku, Azerbaijan, Sep. 27-30, (2010), No. P1-26 (poster).

46. T. Sato, Y. Kawasaki, M. Sugiyama, and S. F. Chichibu:

"Fabrication of Cu(In,Ga)Se₂ thin films by sputtering and selenization using diethylselenide",
The 17th International Conference on Ternary and Multinary Compounds (ICTMC-17), Baku, Azerbaijan, Sep. 27-30, (2010), No.P1-26 (poster).

45. Y. Kawasaki, T. Sato, C. Fujiwara, S. F. Chichibu, and M. Sugiyama:

"The use of metalorganic sources for the continuous fabrication of Cd-free CIGS solar cells with a ZnSe buffer layer",
25th European Photovoltaic Solar Energy Conference (25th EU PVSEC), Feria Valencia in Valencia, Spain. Sep. 6-9 (2010), No. 3BV.2.10 (poster).

44. Y. Hirose, K. Takakura, S. F. Chichibu, H. Ohyama, S. Kimura, and M. Sugiyama:

"Optical properties of electron irradiated CIGS and ZnO thin films",
European Materials Research Society, 2010 Spring Meeting, Session x: Thin Film Chalcogenide Photovoltaic Materials, Strassbourg, France, Jun. 7-11, (2010), M-P4 3 (poster).

43. M. Sugiyama, T. Yasuniwa, Y. Hirose, K. Takakura, C. Fujiwara, H. Nakanishi, S. F. Chichibu, H. Ohyama, and S. Kimura:

"Impacts of proton, alpha-ray, and gamma-ray irradiation on the optical and electrical properties of Cu(In,Ga)Se₂ thin films and solar cells",
19th International Photovoltaic Science and Engineering Conference (PVSEC-19), Jeju, Korea, Nov. 9-13 (2009), No.CIG-P-39 (poster).

42. M. Warasawa, C. Fujiwara, A. Umezawa, H. Nakanishi, M. Sugiyama, and S. F. Chichibu:

"Cu(In,Al)Se₂ thin film growth by the selenization method using diethylselenide",
19th International Photovoltaic Science and Engineering Conference (PVSEC-19), Jeju, Korea, Nov. 9-13 (2009), No.CIG-P-40 (poster).

41. M. Sugiyama, A. Miyama, X. Dou, H. Nakanishi, and S. F. Chichibu:

"Fabrication of CdS-free Cu(In,Ga)Se₂ solar cells composed of a Zn-diffused photoabsorbing junction using dimethylzinc",
34th IEEE Photovoltaic Specialists Conference, Philadelphia, PA, USA, Jun. 7-12 (2009), Area2-273 (poster).

40. M. Sugiyama, T. Yasuniwa, X. Dou, H. Nakanishi, S. F. Chichibu, and S. Kimura:

"Impacts of gamma-ray and proton irradiation on the Cu(In,Ga)Se2₂ thin films and solar cells",
34th IEEE Photovoltaic Specialists Conference (PVSC-34), Philadelphia, PA, USA, Jun. 7-12 (2009), Area6-484 (poster).

39. C. Fujiwara, A. Umezawa, T. Yasuniwa, A. Miyama, H. Nakanishi, M. Sugiyama, and S. F. Chichibu:

"Growth of Cu(In,Al)Se₂ thin films by selenization using diethylselenide",
Materials Research Society 2009 Spring Meeting, Symposium M: Thin-Film Compound Semiconductor Photovoltaics, San Francisco, CA, USA, Apr.13-17, (2009), No.M5-9(poster).

38. A. Miyama, X. Dou, Y. Sato, H. Nakanishi, S. F. Chichibu, and M. Sugiyama:

"Fabrication of Zn doped Cu(In,Ga)Se₂ thin film solar cells prepared by thermal diffusion of Zn using dimethylzinc",
18th International Photovoltaic Science and Engineering Conference (PVSEC-18), India, Jan.19-23 (2009) No. 3-1o-021 (oral).

37. A. Miyama, T. Yasuniwa, A. Umezawa, H. Nakanishi, M. Sugiyama, and S. F. Chichibu:

"Fabrication of Zn doped Cu(In,Ga)Se₂ thin film solar cells prepared by thermal diffusion of Zn using dimethylzinc",
The 16th International Conference on Ternary and Multinary Compounds (ICTMC-16), Berlin, Germany, Sep. 15-19, (2008), No.6 (oral).

36. A. Umezawa, T. Yasuniwa, A. Miyama, H. Nakanishi, M. Sugiyama, and S. F. Chichibu:

"Growth of Cu(In,Al)Se₂ thin films by selenization using diethylselenide",
The 16th International Conference on Ternary and Multinary Compounds (ICTMC-16), Berlin, Germany, Sep. 15-19, (2008), No.13 (oral).

35. T. Yasuniwa, K. Murasawa, A. Umezawa, A. Miyama, H. Nakanishi, S. F. Chichibu, S. Kimura, and M. Sugiyama:

"Effects of proton and gamma-ray irradiation on the optical properties of CuInSe₂ thin films",
The 16th International Conference on Ternary and Multinary Compounds (ICTMC-16), Berlin, Germany, Sep. 15-19, (2008), No.55 (oral).

34. S. Ando, N.Takayama, M. Sugiyama, H. Nakanishi, and S. F. Chichibu:

"Preparation of CuInSe₂ thin films by metalorganic decomposition with oxidation-reduction and subsequent selenization using diethylselenide",
The 16th International Conference on Ternary and Multinary Compounds (ICTMC-16), Berlin, Germany, Sep. 15-19, (2008), No.134 (poster).

33. M. Sugiyama, A. Umezawa, T. Yasuniwa, A. Miyama, H. Nakanishi, and S. F. Chichibu:

"Growth of single-phase Cu(In,Al)Se₂ alloys by selenization using diethylselenide",
European Materials Research Society, 2008 Spring Meeting, Session L: Thin Film Chalcogenide Photovoltaic Materials, Strassbourg, France, May 26-May 30, (2008), L-P1-6 (poster).

32. M. Sugiyama, A. Miyama, A. Umezawa, T. Yasuniwa, A. Kinoshita, H. Nakanishi, and S. F. Chichibu:

"Formation of Zn-In-Se compounds on CIGS film by the thermal annealing in a Dimethylzinc stream",
Materials Research Society 2007 Spring Meeting, Symposium Y: Thin-Film Compound Semiconductor Photovoltaics, San Francisco, CA, USA, Apr.9-13, (2007), No.Y3.33(poster).

31. M. Sugiyama, A. Kinoshita, M. Fukaya, H. Nakanishi, and S. F. Chichibu:

"Purely single-phase CuIn_xGa_1-xSe₂ alloy formation by selenization method using diethylselenide",
European Materials Research Society, 2006 Spring Meeting, Session O: Thin Film Chalcogenide Photovoltaic Materials, Nice, France, May 29-Jun 2, (2006) No.O-PII-21 (poster).

30. M. Sugiyama, F. B. Dejene, A. Kinoshita, M. Fukaya, Y. Maru, V. Alberts, H. Nakanishi, and S. F. Chichibu:

"Preparation of CuInGaSe₂ Films by Selenization of Metal Precursors Premixed with Se using Diethylselenide as a Less-hazardous Source",
The 15th International Conference on Ternary and Multinary Compounds (ICTMC-15), Kyoto, Japan Mar. 6-10, (2006); No. Tue-P-15A (poster).

29. A. Kinoshita, M. Fukaya, M. Sugiyama, H. Nakanishi, and S. F. Chichibu:

"Preparation of high Ga-content CuIn_1-xGa_xSe₂ films by selenization of metal precursors using diethylselenide as a less-hazardous source",
The 15th International Conference on Ternary and Multinary Compounds (ICTMC-15), Kyoto, Japan Mar. 6-10, (2006); No. Tue-P-14A (poster).

28. F. B. Dejene, M. Sugiyama, H. Nakanishi, V. Alberts, and S. F. Chichibu:

"Influence of the stacking order on structural features of the Cu-In-Ga-Se precursors for formation of Cu(In,Ga)Se₂ thin films prepared by thermal reaction of InSe/Cu/GaSe alloys to elemental Se vapour and diethylselenide gas",
The 15th International Conference on Ternary and Multinary Compounds (ICTMC-15), Kyoto, Japan Mar. 6-10, (2006); No. Tue-P-9A (poster).

27. M. Sugiyama, M. Fukaya, A. Kinoshita, Y. Hanou, H. Nakanishi, and S. F. Chichibu:

"Influence of nonstoichiomety and layer structures of Cu-In precursor on the CIS film properties prepared by the selenization technique using diethylselenide as a Se source",
15th International Photovoltaic Science and Engineering Conference (PVSEC-15), Shanghai International Convention Center, Shanghai, China, October 10-15 (2005), No.P1-068 (poster).

26. T. Hashimoto, S. Merdes, H. Nakanishi, S. F. Chichibu, and S. Ando:

"Preparation of CuInS₂ Thin films by Thermal Decomposition of Metal-octoate and Subsequent Sulfurization using DTBS",
20th European Photovoltaic Solar Energy Conference (EUPVSEC-20), CCIB-International Convention Centre, Barcelona, Spain, Jun.6-10, SESSION: (2005) No.4CV.1.33 (poster).

25. H. Sakuno, H. Nakanishi, S. F. Chichibu, and S. Ando:

"Effect of Annealing on the crystallinity of ZnS thin films for CIGS-based solar cells prepared by chemical bath deposition method",
14th International Photovoltaic Science and Engineering Conference (PVSEC-14), Chulalongkorn University, Bangkok, Thailand, January 26-30 (2004) No.OR29V/27-6 (oral).

24. N. Takayama, H. Nakanishi, S. F. Chichibu, and S. Ando:

"Preparation of CuInSe₂ Thin Films by Metal-organic Decomposition with Oxidation-reduction and Subsequent Selenization using Diethylselenide",
14th International Photovoltaic Science and Engineering Conference (PVSEC-14), Chulalongkorn University, Bangkok, Thailand, January 26-30 (2004) No.OR28/18-6 (oral).

23. J. Ishizuki, S. Ando, S. F. Chichibu, and H. Nakanishi:

"Influence of nonstoichiomety and layer structures of Cu-In precursor on the CIS film properties prepared by the selenization technique using diethylselenide as a Se source",
14th International Photovoltaic Science and Engineering Conference (PVSEC-14), Chulalongkorn University, Bangkok, Thailand, January 26-30 (2004) No.PO28/1-140 (poster).

22. K. Yoshino, T. Yamamoto, T. Ikari, M. Yakushev, R. D. Pilkington, and SF. Chichibu:

"Photoluminescence of Hydrogen Implanted n-type and p-type CuInSe₂ Single Crystals",
The 13th International Conference on Ternary and Multinary Compounds (ICTMC-13), Paris, France Oct.14-16, (2002) P2-57 (poster).

21. N. Takayama, J. Miyachi, T. Yamamoto, T. Deguchi, H. Nakanishi, SF. Chichibu, and S. Ando:

"Preparation of CuInSe₂ Thin Films by Thermal Decomposition of Metal-naphthenates and Subsequent Selenization using Diethylselenide",
The 13th International Conference on Ternary and Multinary Compounds (ICTMC-13), Paris,France Oct.14-16, (2002) P2-39 (poster).

20. T. Yamamoto, M. Nakamura, J. Ishizuki, T. Deguchi, S. Ando, H. Nakanishi, and SF. Chichibu:

"Use of diethylselenide as a less-hazardous source for preparation of CuInSe₂ thin films by selenization of metal precursors",
The 13th International Conference on Ternary and Multinary Compounds (ICTMC-13), Paris, France Oct.14-16, (2002) P2-37 (poster).

19. D. Maruoka, K. Yoshino, M. Sugiyama, S. Chichibu, K. Imai, K. Umeda, and T. Ikari:

"Photoluminescence spectra of CuGaSe₂ crystals",
Hyogo, Japan, Sep.24-27, 2000, No. MoP-17 (poster).

18. N. Mitani, K. Yoshino, M. Sugiyama, S. Chichibu, H. Komaki, and T. Ikari:

"OPTICAL AND ELECTRICAL PROPERTIES OF AgIn(SSe)₂ CRYSTALS",
The 9th International Conference on Shallow Centers in Semiconductors (SLCS-9), Awaji Island, Hyogo, Japan, Sep.24-27, 2000, No. MoP-15 (poster).

17. M. Uchino, S. Niki, Y. Ai, P. J. Fons, A. Yamada, N. Sakai, H. Yokokawa, H. Oyanagi, S. Chichibu, and H. Nakanishi:

"Disappearance of the surface Cu-Se second phase during post-growth annealing of CuInSe₂ epitaxial films grown under Cu-flux excess conditions",
The 12th International Conference on Ternary and Multinary Compounds (ICTMC-12), Hsinchu, Taiwan, Mar.13-17, 2000, Th-A1-3, (oral) ; Japanese Journal of Applied Physics Supplement , pp.205-207 (2000).

16. K. Yoshino, N. Mitani, M. Sugiyama, S. Chichibu, H. Nakanishi, H. Yokoyama, K. Maeda, and T. Ikari:

"Crystal Growth of High Purity AgIn(S_xSe_1-x)₂ Single Crystals",
The 12th International Conference on Ternary and Multinary Compounds (ICTMC-12), Hsinchu, Taiwan, Mar.13-17, 2000, Tu-A4-1, (oral) ; Japanese Journal of Applied Physics Supplement , pp.50-51 (2000).

15. M. Sugiyama, N. Mitani, K. Yoshino, T. Ikari, H. Nakanishi, and S. Chichibu:

"Optical Properties of AgIn(S_ySe_1-y)₂",
The 12th International Conference on Ternary and Multinary Compounds (ICTMC-12), Hsinchu, Taiwan, Mar.13-17, 2000, P1-53, (poster) ; Japanese Journal of Applied Physics Supplement , pp.96-97 (2000).

14. A. Hayakawa, T. Mizutani, H. Nakanishi, and S. Chichibu:

"Growth and Band-gap Estimation of CuIn₃Se₅ Polycrystalline Thin Films",
The 12th International Conference on Ternary and Multinary Compounds (ICTMC-12), Hsinchu, Taiwan, Mar.13-17, 2000, P1-95, (poster) ; Japanese Journal of Applied Physics Supplement , pp.162-163 (2000).

13. S. Chichibu, T. Mizutani, H. Nakanishi, S. Niki, P. J. Fons, and A. Yamada:

"Exciton Structures of Single- and Polycrystalline CuInSe₂ and CuGaSe₂",
The 12th International Conference on Ternary and Multinary Compounds (ICTMC-12), Hsinchu, Taiwan, Mar.13-17, 2000, P1-54, (poster) ; Japanese Journal of Applied Physics Supplement , pp.326-327 (2000).

12. S. Shirakata, S. Chichibu, H. Miyake, S. Isomura, H. Nakanishi, and K. Sugiyama:

"Electroreflectance of CuInSe₂, CuIn₃Se₅ and CuIn₂Se_3.5",
The 11th International Conference on Ternary and Multinary Compounds (ICTMC-11), Salford, United Kingdom Sep.8-12,1997. (poster) Institute of Physics Conference Series No.152 Section B: Thin Film Growth and Characterization PP.597-600

11. Y. Yamaki, T. Shioda, T. Irie, H. Nakanishi, and S. Chichibu:

"High-quality CuInSe₂ polycrystalline films and epitaxial layers prepared by multi-source physical vapor deposition",
The 11th International Conference on Ternary and Multinary Compounds (ICTMC-11), Salford, United Kingdom Sep.8-12,1997, A9.1(oral). Institute of Physics Conference Series No.152 Section B: Thin Film Growth and Characterization PP.237-240

10. T. Mizutani, H. Nakanishi, and S. Chichibu:

"Metalorganic vapor phase epitaxy and characterization of very high-purity CuInSe₂ layers",
The 11th International Conference on Ternary and Multinary Compounds (ICTMC-11), Salford, United Kingdom Sep.8-12,1997. (poster) Institute of Physics Conference Series No.152 Section B: Thin Film Growth and Characterization PP.297-300

9. S. Niki, P. J. Fons, A. Yamada, H. Oyanagi, T. Kurafuji, K. Murakami, S. Chichibu, H. Nakanishi, M. Nishitani, and T. Wada:

"Intrinsic Nature of CuInSe₂ Epitaxial Films Grown by Molecular Beam Epitaxy",
14th European Photovoltaic Solar Energy Conference and Exhibition, Barcelona, Spain, Jun.30-Jul.4, 1997.

8. S. Niki, I. Kim, P. J. Fons, H. Shibata, A. Yamada, H. Oyanagi, T. Kurafuji, S. Chichibu, and H. Nakanishi:

"Effects of Annealing on CuInSe₂ Films Grown by Molecular Beam Epitaxy",
9th International Photovoltaic Science and Engineering Conference (PVSEC-9), Miyazaki, Japan, Nov.11-15, 1996, No.A-IX-5, Technical Digest of PVSEC-9, p.607-608.

7. S. Niki, T. Kurafuji, P. J. Fons, A. Yamada, Y. Makita, S. Chichibu, H. Nakanishi, and C. W. Tu:

"Molecular Beam Epitaxial Growth and Properties of CuInSe₂ Grown on Nearly Lattice Matched Substrate",
The 10th International Conference on Ternary and Multinary Compounds (ICTMC-10), Stuttgart, Germany, Sep.18-22,1995. POI.86.

6. S. Chichibu, S. Niki, T. Wada, J. Ishikawa, T. Kurafuji, K. Haga, A. Yamada, Y. Makita, and H. Nakanishi:

"Absorption Spectra of CuInSe₂/7059 Glass Grown Using Molecular Beam Epitaxy Apparatus",
The 10th International Conference on Ternary and Multinary Compounds (ICTMC-10), Stuttgart, Germany, Sep.18-22, 1995. POI.85.

5. J. Ishikawa, T. Shioda, Y. Kimura, K. Yamaya, S. Chichibu, T. Kariya, H. Nakanishi, S. Endo, and T. Irie:

"Urbach's Tails in the Absorption Spectra of CuInSe₂ Single Crystals Grown by Normal Freezing Method",
The 10th International Conference on Ternary and Multinary Compounds ICTMC-10), Stuttgart, Germany Sep.18-22,1995. POI.33.

4. T. Kurafuji, S. Niki, H. Shibata, Y. Yamada, Y. Makita, S. Chichibu, and H. Nakanishi:

"Near Band-Edge Emissions in CuInSe₂ Grown by Molecular Beam Epitaxy",
The 10th International Conference on Ternary and Multinary Compounds (ICTMC-10), Stuttgart, Germany Sep.18-22,1995. POI.11.

3. S. Niki, H. Shibata, P. J. Fons, A. Yamada, A. Obara, Y. Makita, T. Kurafuji, S. Chichibu, and H. Nakanishi:

"Optical Properies of As-Grown and Post-Annealed CuInSe₂ Grown by Molecular Beam Epitaxy",
37th Electronic Materials Conference, Jun.21-23,1995. No.W4.

2. S. Niki, Y. Makita, A. Yamada, H. Shibata, P. J. Fons, A. Obara, T. Kurafuji, S. Chichibu, and H. Nakanishi:

"Optical characterization of CuInSe₂ grown by molecular beamepitaxy",
1st World Conference on Photovoltaic Energy Conversion, Waikoloa, Hawaii, Dec.5-9, 1994.

1 S. Niki, P. Fons, A. Yamada, H. Shibata, H. Oyanagi, T. Kurafuji, S. Chichibu, and H. Nakanishi:

"Molecular Beam Epitaxial Growth of Cu-In-Se Compounds",
International Symposium-R of The Materials Research Society of Japan, Makuhari, Japan, May 22-23,1996. R7. Proceeding of MRS-J Symposium R; Novel Semiconductor Materials, edited by H.Oyanagi, (1996), pp.4.