Antimony Doping in Solution‐processed Cu2ZnSn(S,Se)4 Solar Cells

Kong Fai Tai; Dongchuan Fu; Sing Yang Chiam; Cheng Hon Alfred Huan; Sudip Kumar Batabyal; Lydia Helena Wong

doi:10.1002/cssc.201500433

journal article Sep 17, 2015

Antimony Doping in Solution‐processed Cu2ZnSn(S,Se)4 Solar Cells

Kong Fai Tai Dongchuan Fu Sing Yang Chiam

Cheng Hon Alfred Huan Sudip Kumar Batabyal Lydia Helena Wong

ChemSusChem Vol. 8 No. 20 pp. 3504-3511 · Wiley

View at Publisher Save 10.1002/cssc.201500433

Abstract

AbstractKesterite Cu2ZnSn(S,Se)4 (CZTSSe) is obtained using a facile precursor‐solution method followed by selenization. Power‐conversion efficiency of 6.0 % is achieved and further improved to 8.2 % after doping the absorber with 0.5 mol % Sb. XRD and Raman spectroscopy show similar characteristics for the undoped and doped CZTSSe. Increasing the Sb concentration increases the grain size and lowers the series resistance. However, further Sb doping beyond 0.5 mol % degrades device performance due to lower open‐circuit voltage (and therefore lower fill factor). The effect of Sb doping and the doping concentration are investigated by power‐dependent and temperature‐dependent photoluminescence studies, revealing that trap density is significant reduced with 0.5 mol % Sb doping. Additional doping beyond 0.5 mol % creates more defects that quench the photoexcited carriers and decrease the open‐circuit voltage.

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Metrics

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Citations

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References

Details

Published: Sep 17, 2015
Vol/Issue: 8(20)
Pages: 3504-3511
License: View

Authors

K

Kong Fai Tai

Energy Research Institute@ NTU (ERI@N) Research Techno Plaza, Level 5, 50 Nanyang Drive Singapore 639798 Singapore; Division of Physics and Applied Physics School of Physical and Mathematical Sciences NTU 21 Nanyang Link Singapore 637371 Singapore

D

Dongchuan Fu

Energy Research Institute@ NTU (ERI@N) Research Techno Plaza, Level 5, 50 Nanyang Drive Singapore 639798 Singapore

S

Sing Yang Chiam

Institute of Materials Research and Engineering (IMRE) 3 Research Link Singapore 117602 Singapore

C

Cheng Hon Alfred Huan

Division of Physics and Applied Physics School of Physical and Mathematical Sciences NTU 21 Nanyang Link Singapore 637371 Singapore

S

Sudip Kumar Batabyal

Energy Research Institute@ NTU (ERI@N) Research Techno Plaza, Level 5, 50 Nanyang Drive Singapore 639798 Singapore

L

Lydia Helena Wong

Energy Research Institute@ NTU (ERI@N) Research Techno Plaza, Level 5, 50 Nanyang Drive Singapore 639798 Singapore; School of Material Science and Engineering NTU Block N4.1, Nanyang Avenue Singapore 639798 Singapore

Funding

Singapore-Berkeley Research Initiative for Sustainable Energy (SinBeRISE) CREATE Program

NTU-HUJ-BGU Nanomaterials for Energy and Water Management Program

Cite This Article

Kong Fai Tai, Dongchuan Fu, Sing Yang Chiam, et al. (2015). Antimony Doping in Solution‐processed Cu2ZnSn(S,Se)4 Solar Cells. ChemSusChem, 8(20), 3504-3511. https://doi.org/10.1002/cssc.201500433

Antimony Doping in Solution‐processed Cu2ZnSn(S,Se)4 Solar Cells

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