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Efficient tandem solar cells with solution-processed perovskite on textured crystalline silicon.

Publication ,  Journal Article
Hou, Y; Aydin, E; De Bastiani, M; Xiao, C; Isikgor, FH; Xue, D-J; Chen, B; Chen, H; Bahrami, B; Chowdhury, AH; Johnston, A; Baek, S-W; Wei, M ...
Published in: Science
March 6, 2020

Stacking solar cells with decreasing band gaps to form tandems presents the possibility of overcoming the single-junction Shockley-Queisser limit in photovoltaics. The rapid development of solution-processed perovskites has brought perovskite single-junction efficiencies >20%. However, this process has yet to enable monolithic integration with industry-relevant textured crystalline silicon solar cells. We report tandems that combine solution-processed micrometer-thick perovskite top cells with fully textured silicon heterojunction bottom cells. To overcome the charge-collection challenges in micrometer-thick perovskites, we enhanced threefold the depletion width at the bases of silicon pyramids. Moreover, by anchoring a self-limiting passivant (1-butanethiol) on the perovskite surfaces, we enhanced the diffusion length and further suppressed phase segregation. These combined enhancements enabled an independently certified power conversion efficiency of 25.7% for perovskite-silicon tandem solar cells. These devices exhibited negligible performance loss after a 400-hour thermal stability test at 85°C and also after 400 hours under maximum power point tracking at 40°C.

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Published In

Science

DOI

EISSN

1095-9203

Publication Date

March 6, 2020

Volume

367

Issue

6482

Start / End Page

1135 / 1140

Location

United States

Related Subject Headings

  • General Science & Technology
 

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Hou, Y., Aydin, E., De Bastiani, M., Xiao, C., Isikgor, F. H., Xue, D.-J., … Sargent, E. H. (2020). Efficient tandem solar cells with solution-processed perovskite on textured crystalline silicon. Science, 367(6482), 1135–1140. https://doi.org/10.1126/science.aaz3691
Hou, Yi, Erkan Aydin, Michele De Bastiani, Chuanxiao Xiao, Furkan H. Isikgor, Ding-Jiang Xue, Bin Chen, et al. “Efficient tandem solar cells with solution-processed perovskite on textured crystalline silicon.Science 367, no. 6482 (March 6, 2020): 1135–40. https://doi.org/10.1126/science.aaz3691.
Hou Y, Aydin E, De Bastiani M, Xiao C, Isikgor FH, Xue D-J, et al. Efficient tandem solar cells with solution-processed perovskite on textured crystalline silicon. Science. 2020 Mar 6;367(6482):1135–40.
Hou, Yi, et al. “Efficient tandem solar cells with solution-processed perovskite on textured crystalline silicon.Science, vol. 367, no. 6482, Mar. 2020, pp. 1135–40. Pubmed, doi:10.1126/science.aaz3691.
Hou Y, Aydin E, De Bastiani M, Xiao C, Isikgor FH, Xue D-J, Chen B, Chen H, Bahrami B, Chowdhury AH, Johnston A, Baek S-W, Huang Z, Wei M, Dong Y, Troughton J, Jalmood R, Mirabelli AJ, Allen TG, Van Kerschaver E, Saidaminov MI, Baran D, Qiao Q, Zhu K, De Wolf S, Sargent EH. Efficient tandem solar cells with solution-processed perovskite on textured crystalline silicon. Science. 2020 Mar 6;367(6482):1135–1140.
Journal cover image

Published In

Science

DOI

EISSN

1095-9203

Publication Date

March 6, 2020

Volume

367

Issue

6482

Start / End Page

1135 / 1140

Location

United States

Related Subject Headings

  • General Science & Technology