New World-Record Efficiency for Pure-Sulfide Cu(In,Ga)S2 Thin-Film Solar Cell with Cd-Free Buffer Layer via KCN-Free Process

IEEE Journal of Photovoltaics

Volumn 6, Issue 3, 2016, Pages 760-763

  Hiroi, Homare ^a   Iwata, Yasuaki ^a   Adachi, Shunsuke ^a   Sugimoto, Hiroki ^a   Yamada, Akira ^b  

^a Solar Frontier KK   (Japan)

^b TOKYO INSTITUTE OF TECHNOLOGY   (Japan)

Author keywords

Cd free buffer layer; KCN free process; pure sulfide Cu(In Ga)S2

Indexed keywords

BUFFER LAYERS; CONVERSION EFFICIENCY; COPPER; EFFICIENCY; GALLIUM; SOLAR CELLS; SULFUR COMPOUNDS; THIN FILMS;

ACCREDITED LABORATORIES; CD-FREE; CD-FREE BUFFER LAYER; CIGS THIN FILMS; CU(IN ,GA)S; METAL SPUTTERING; WORLD RECORD EFFICIENCY; WORLD RECORDS;

THIN FILM SOLAR CELLS;

EID: 84978017110     PISSN: 21563381     EISSN: None     Source Type: Journal    
DOI: 10.1109/JPHOTOV.2016.2537540     Document Type: Article

References (11)

1. Solar Frontier K.K. Press Release, Dec. 8, 2015.
2. S. Merdes et al., "CdS/Cu(In,Ga)S2 based solar cells with efficiencies reaching 12.9% prepared by a rapid thermal process," Prog. Photovoltaics, Res. Appl., vol. 21, pp. 88-93, 2013.
3. M. Nakamura et al., "Recent R&D progress in solar frontier's small-sized Cu(InGa)(SeS)2 solar cells," presented at the 40th IEEE Photovoltaic Spec. Conf., Denver, CO, USA, Jun. 8-13, 2014.
4. M. Buffiere et al., "Recombination stability in polycrystalline Cu2 ZnSnSe4 thin films," presented at the 39th IEEE Photovoltaic Spec. Conf., Tampa, FL, USA, Jun. 16-21, 2013.
5. H. Hiroi, N. Sakai, T. Kato, H. Sugimoto, "High voltage Cu2 ZnSnS4 submodules by hybrid buffer layer," presented at the 39th IEEE Photovoltaic Spec. Conf., Tampa, FL, USA, Jun. 16-21, 2013.
6. J. Kim et al., "High efficiency Cu2 ZnSn(S,Se)4 solar cells by applying a double In2 S3/CdS emitter," Adv. Mater., vol. 26, pp. 7427-7431, 2014, DOI: 10.1002/adma.201402373.
7. W. Wang et al., "Device characteristics of CZTSSe thin-film solar cells with 12.6% efficiency," Adv. Energy Mater., vol. 4, art. no. 1301465, 2013.
8. T. Watanabe and M. Matsui, "Improved efficiency of CuInS2-based solar cells without potassium cyanide process," Jpn. J. Appl. Phys., vol. 38, pp. L1379-L1381, 1999.
9. H. Hiroi, Y. Iwata, K. Horiguchi, H. Sugimoto, "960-mV open-circuit voltage chalcopyrite solar cell," IEEE J. Photovoltaics, vol. 6, no. 1, pp. 309-312, Jan. 2016.
10. S. Merdes et al., "Recombination mechanisms in highly efficient thin film Zn(S,O)/Cu(In,Ga)S2 based solar cells," Appl. Phys. Lett., vol. 95, art. no. 213502, 2009.
11. T. Minemoto, T. Negami, S. Nishiwaki, H. Takakura, Y. Hamakawa, "Preparation of Zn1?xMgxO Films by RF magnetron sputtering," Thin Solid Films, vol. 372, pp. 173-176, 2000.