8:30 - 8:452FrO3.1

ELECTRONIC DEFECTS IN CIGSe: A COMPREHENSIVE MODEL

Susanne Siebentritt ¹⁾, Conrad Spindler¹⁾, Finn Babbe¹⁾

¹⁾ Laboratory for Photovoltaics, University of Luxembourg

8:45 - 9:002FrO3.2

IMPACT OF KF-POST DEPOSITION TREATMENT ON SURFACE ELECTRONIC STRUCTURE OF CIGSSe AND CIGSe ABSORBERS

Suehiro Kawamura¹⁾, Yuya Iwamoto¹⁾, Kohei Tanigawa¹⁾, Takuya Kato²⁾, Hiroki Sugimoto²⁾, Shogo Ishizuka³⁾, Hajime Shibata³⁾, Koji Matsubara³⁾, Shigeru Niki³⁾, Norio Terada ¹⁾

¹⁾ Graduate School of Science and Engineering, Kagoshima University, ²⁾ Solar Frontier K. K., ³⁾ AIST

9:00 - 9:152FrO3.3

DEEP LEVEL EMISSION IN POLYCRYSTALLINE CUGASE2 THIN-FILMS OBSERVED BY MICRO-PHOTOLUMINESCENCE

Muhammad Monirul Islam ¹⁾, Shenghao Wang¹⁾, Shogo Ishizuka²⁾, Hajime Shibata²⁾, Shigeru Niki²⁾, Katsuhiro Akimoto¹⁾, Takeaki Sakurai¹⁾

¹⁾ University of Tsukuba, ²⁾ National Institute of Advanced Industrial Science and Technology (AIST)

9:15 - 9:302FrO3.4

FIRST PRINCIPLES STUDIES ON EFFECTS OF LIGHT AND HEAVY ALKALI ELEMENTS IN Cu(In,Ga)Se2 SOLAR CELLS

Tsuyoshi Maeda ¹⁾, Takahiro Wada¹⁾

¹⁾ Department of Materials Chemistry, Ryukoku University

9:30 - 9:452FrO3.5

BAND OFFSET AT THE INTERFACE BETWEEN CDS BUFFER AND CZTGSE ABSORBER LAYER

Takehiko Nagai ¹⁾, Kenta Kawasaki²⁾, Suehiro Kawamura²⁾, Shin’ichi Takaki²⁾, Takuya Shimamura²⁾, Hitoshi Tampo¹⁾, Shinho Kim¹⁾, Hajime Shibata¹⁾, Shigeru Niki¹⁾, Norio Terada²⁾

¹⁾ Research Center for Photovoltaics (RCPV), National Institute of Advanced Industrial Scienece and Technology (AIST), ²⁾ Kagoshima University

9:45 - 10:002FrO3.6

OPTICAL PROPERTIES OF Cu2ZnGeSe4 WITH VERY LOW URBACH ENERGY: COMPARISON WITH Cu-Se-BASED MATERIALS

Shohei Fujimoto ¹⁾, Hitoshi Tampo²⁾, Shinho Kim²⁾, Keisuke Nagaya¹⁾, Mitsutoshi Nishiwaki¹⁾, Kang Min Kim²⁾, Hajime Shibata²⁾, Shigeru Niki²⁾, Hiroyuki Fujiwara¹⁾

¹⁾ Department of Electrical, Electronic and Computer Engineering, Gifu University, ²⁾ Research Center for Photovoltaics, National Institute of Advanced Industrial Science and Technology