Efficient two-terminal all-perovskite tandem solar cells enabled by high-quality low-bandgap absorber layers

Zhao, Dewei; Chen, Cong; Wang, Changlei; Junda, Maxwell M.; Song, Zhaoning; Grice, Corey R.; Yu, Yue; Li, Chongwen; Subedi, Biwas; Podraza, Nikolas J.; Zhao, Xingzhong; Fang, Guojia; Xiong, Ren-Gen; Zhu, Kai; Yan, Yanfa

doi:10.1038/s41560-018-0278-x

Efficient two-terminal all-perovskite tandem solar cells enabled by high-quality low-bandgap absorber layers

Journal Article · Mon Nov 26 00:00:00 EST 2018 · Nature Energy

DOI:https://doi.org/10.1038/s41560-018-0278-x· OSTI ID:1485560

^[1]; Chen, Cong ^[2]; Wang, Changlei ^[2]; Junda, Maxwell M. ^[1]; ^[1]; ^[1]; Yu, Yue ^[1]; Li, Chongwen ^[1]; Subedi, Biwas ^[1]; Podraza, Nikolas J. ^[1]; Zhao, Xingzhong ^[3]; ^[3]; Xiong, Ren-Gen ^[4]; ^[5]; ^[1]

Univ. of Toledo, OH (United States)
Univ. of Toledo, OH (United States); Wuhan Univ. (China)
Wuhan Univ. (China)
Nanchang University (China); Southeast University, Nanjing (China)
National Renewable Energy Lab. (NREL), Golden, CO (United States)

We report that multi-junction all-perovskite tandem solar cells are a promising choice for next-generation solar cells with high efficiency and low fabrication cost. However, the lack of high-quality low-bandgap perovskite absorber layers seriously hampers the development of efficient and stable two-terminal monolithic all-perovskite tandem solar cells. Here, we report a bulk-passivation strategy via incorporation of chlorine, to enlarge grains and reduce electronic disorder in mixed tin-lead low-bandgap (~1.25 eV) perovskite absorber layers. This enables the fabrication of efficient low-bandgap perovskite solar cells using thick absorber layers (~750 nm), which is a requisite for efficient tandem solar cells. Such improvement enables the fabrication of two-terminal all-perovskite tandem solar cells with a champion power conversion efficiency of 21% and steady-state efficiency of 20.7%. Finally, the efficiency is retained to 85% of its initial performance after 80 h of operation under continuous illumination.

View Accepted Manuscript (DOE)

Research Organization:: National Renewable Energy Laboratory (NREL), Golden, CO (United States)

Sponsoring Organization:: USDOE Office of Energy Efficiency and Renewable Energy (EERE), Solar Energy Technologies Office (EE-4S). SunShot Initiative

Grant/Contract Number:: AC36-08GO28308

OSTI ID:: 1485560

Report Number(s):: NREL/JA--5900-72358

Journal Information:: Nature Energy, Journal Name: Nature Energy Journal Issue: 12 Vol. 3; ISSN 2058-7546

Publisher:: Nature Publishing GroupCopyright Statement

Country of Publication:: United States

Language:: English

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The role of excitons in 3D and 2D lead halide perovskites Marongiu, Daniela; Saba, Michele; Quochi, Francesco Journal of Materials Chemistry C, Vol. 7, Issue 39 https://doi.org/10.1039/c9tc04292j	journal	January 2019
Atmospherically induced defects in (FASnI ₃ ) _0.6 (MAPbI _{3−3 x} Cl _{3 x} ) _0.4 perovskites Junda, Maxwell M.; Zhao, Dewei; Subedi, Biwas Journal of Physics D: Applied Physics, Vol. 52, Issue 17 https://doi.org/10.1088/1361-6463/ab05b2	journal	February 2019
Wide-bandgap, low-bandgap, and tandem perovskite solar cells Song, Zhaoning; Chen, Cong; Li, Chongwen Semiconductor Science and Technology, Vol. 34, Issue 9 https://doi.org/10.1088/1361-6641/ab27f7	journal	July 2019
Tailoring solvent coordination for high-speed, room-temperature blading of perovskite photovoltaic films Deng, Yehao; Van Brackle, Charles H.; Dai, Xuezeng Science Advances, Vol. 5, Issue 12 https://doi.org/10.1126/sciadv.aax7537	journal	December 2019
Carrier lifetimes of >1 μs in Sn-Pb perovskites enable efficient all-perovskite tandem solar cells Tong, Jinhui; Song, Zhaoning; Kim, Dong Hoe Science, Vol. 364, Issue 6439 https://doi.org/10.1126/science.aav7911	journal	April 2019
In Situ-Formed and Low-Temperature-Deposited Nb:TiO2 Compact-Mesoporous Layer for Hysteresis-Less Perovskite Solar Cells with High Performance Yu, Miao; Sun, Haoxuan; Huang, Xiaona Nanoscale Research Letters, Vol. 15, Issue 1 https://doi.org/10.1186/s11671-020-03366-1	journal	June 2020
Solution-processed Perovskite-colloidal Quantum Dot Tandem Solar Cells for Photon Collection Beyond 1000 nm Ashhab, Sahel; Ouellette, Olivier; Kim, Junghwan 4th Asia-Pacific International Conference on Perovskite, Organic Photovoltaics and Optoelectronics, Proceedings of the Asia-Pacific International Conference on Perovskite, Organic Photovoltaics and Optoelectronics https://doi.org/10.29363/nanoge.iperop.2020.093	conference	January 2020
Diagnosis of Perovskite Solar Cells Through Absolute Electroluminescence-Efficiency Measurements Xue, Juanjuan; Hu, Xiaobo; Guo, Yixin Frontiers in Physics, Vol. 7 https://doi.org/10.3389/fphy.2019.00166	journal	October 2019
Vacuum‐Assisted Growth of Low‐Bandgap Thin Films (FA$_{0.8}$MA$_{0.2}$Sn$_{0.5}$Pb$_{0.5}$I$_{3}$) for All‐Perovskite Tandem Solar Cells Abdollahi Nejand, Bahram; Hossain, Ihteaz M.; Jakoby, Marius Karlsruhe https://doi.org/10.5445/ir/1000104357	text	January 2020

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14 SOLAR ENERGY
36 MATERIALS SCIENCE
efficiency
fabrication
perovskites
tandem solar cells

Efficient two-terminal all-perovskite tandem solar cells enabled by high-quality low-bandgap absorber layers

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