Transcript Solution-Processed Cu2ZnSn(S,Se)4 Photovoltaics

Cu2ZnSn(S,Se)4 Photovoltaics
CuInSe2
(I-III-VI)
Cu2ZnSn(S,Se)4 (CZTS)
(I-II-IV-VI)
• Suitable and tunable bandgap
• Large absorption coefficient
• Proven efficiency (12.7%)
through non-vacuum fabrication
• Only earth-abundant elements
Kim, J. et al. Adv. Mater. 2014, DOI: 10.1002/adma.201402373.
Solution-Processed Cu2ZnSn(S,Se)4 at UCLA
Understanding Chemistry
Developing Formulation
Hsu, W.-C. et al. Energy Environ. Sci. 2012, 5, 8564.
Yang, W. et al. J. Am. Chem. Soc. 2013, 135, 6915.
Zhou, H. et al. Energy Environ. Sci. 2014, 7, 998.
Hsu, C.-J. et al. Adv. Energy Mater. 2014, 4, 1301287.
Fabricating Solar Cells
Studying Device Physics
Yang, W. et al. Adv. Mater. 2012,24, 6323.
Hsu, W.-C. et al. ACS Nano 2014, 8, 9164.
Duan, H.-S. et al. Adv. Funct. Mater. 2013, 23, 1466.
Zhou, H. et al. J. Am. Chem. Soc. 2013, 135, 15998.