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Torwards marketable efficiency solution-processed kesterite and chalcopyrite photovoltaic devices

Publication ,  Conference
Mitzi, DB; Todorov, TK; Gunawan, O; Yuan, M; Cao, Q; Liu, W; Reuter, KB; Kuwahara, M; Misumi, K; Kellock, AJ; Chey, SJ; De Monsabert, TG ...
Published in: Conference Record of the IEEE Photovoltaic Specialists Conference
December 20, 2010

Although CuIn1-xGaxSe2-yS2 (CIGS) chalcopyrite and Cu2ZnSn(S,Se)4 (CZTSSe) kesterite-related films offer significant potential for low-cost high-efficiency photovoltaic (PV) devices, the complicated multi-element nature of these materials generally leads to the requirement of more complex and costly deposition processes. This talk focuses on employing the unique solvent properties of hydrazine to solution-deposit CIGS and CZTSSe films for high-performance solar cells. CIGS films are deposited by completely dissolving all elements in hydrazine, solution-depositing a molecular precursor film, and heat treating in an inert atmosphere, to yield a single-phase chalcopyrite film (no post-deposition selenization required). Trace additions of Sb improve grain structure in the resulting film and enhance device performance. Devices based on a glass/Mo/spin-coated CIGS/CdS/i-ZnO/ITO structure yield power conversion efficiencies of as high as 13.6% (AM1.5 illumination; NREL certified). Analogous CZTSSe absorber layers have been processed using a hybrid hydrazine-based slurry approach, enabling liquid-based deposition of kesteritetype films and resulting device efficiencies of as high as 9.6% (AM1.5 illumination; NREL certified)-exceeding the previous kesterite performance record by ∼40%. The combination of improved efficiency, In-free absorber and solution-based processing opens opportunities for development of a low-cost and pervasive technology. © 2010 IEEE.

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Published In

Conference Record of the IEEE Photovoltaic Specialists Conference

DOI

ISSN

0160-8371

ISBN

9781424458912

Publication Date

December 20, 2010

Start / End Page

640 / 645
 

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Mitzi, D. B., Todorov, T. K., Gunawan, O., Yuan, M., Cao, Q., Liu, W., … Fogel, K. E. (2010). Torwards marketable efficiency solution-processed kesterite and chalcopyrite photovoltaic devices. In Conference Record of the IEEE Photovoltaic Specialists Conference (pp. 640–645). https://doi.org/10.1109/PVSC.2010.5616865
Mitzi, D. B., T. K. Todorov, O. Gunawan, M. Yuan, Q. Cao, W. Liu, K. B. Reuter, et al. “Torwards marketable efficiency solution-processed kesterite and chalcopyrite photovoltaic devices.” In Conference Record of the IEEE Photovoltaic Specialists Conference, 640–45, 2010. https://doi.org/10.1109/PVSC.2010.5616865.
Mitzi DB, Todorov TK, Gunawan O, Yuan M, Cao Q, Liu W, et al. Torwards marketable efficiency solution-processed kesterite and chalcopyrite photovoltaic devices. In: Conference Record of the IEEE Photovoltaic Specialists Conference. 2010. p. 640–5.
Mitzi, D. B., et al. “Torwards marketable efficiency solution-processed kesterite and chalcopyrite photovoltaic devices.” Conference Record of the IEEE Photovoltaic Specialists Conference, 2010, pp. 640–45. Scopus, doi:10.1109/PVSC.2010.5616865.
Mitzi DB, Todorov TK, Gunawan O, Yuan M, Cao Q, Liu W, Reuter KB, Kuwahara M, Misumi K, Kellock AJ, Chey SJ, De Monsabert TG, Prabhakar A, Deline V, Fogel KE. Torwards marketable efficiency solution-processed kesterite and chalcopyrite photovoltaic devices. Conference Record of the IEEE Photovoltaic Specialists Conference. 2010. p. 640–645.

Published In

Conference Record of the IEEE Photovoltaic Specialists Conference

DOI

ISSN

0160-8371

ISBN

9781424458912

Publication Date

December 20, 2010

Start / End Page

640 / 645