Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/138048
Title: Slow hot-carrier cooling in halide perovskites : prospects for hot-carrier solar cells
Authors: Li, Mingjie
Fu, Jianhui
Xu, Qiang
Sum, Tze Chien
Keywords: Science::Physics
Issue Date: 2019
Source: Li, M., Fu, J., Xu, Q., & Sum, T. C. (2019). Slow hot‐carrier cooling in halide perovskites : prospects for hot‐carrier solar cells. Advanced Materials, 31(47), 1802486-. doi:10.1002/adma.201802486
Project: NTU Start-up Grant M4080514
JSPS-NTU Joint Research Project M4082176
RG173/16
MOE2015-T2-2-015
MOE2016-T2-1-034
NRF-CRP14-2014-03
NRF-NRFI-2018-04
Journal: Advanced Materials
Abstract: Rapid hot-carrier cooling is a major loss channel in solar cells. Thermodynamic calculations reveal a 66% solar conversion efficiency for single junction cells (under 1 sun illumination) if these hot carriers are harvested before cooling to the lattice temperature. A reduced hot-carrier cooling rate for efficient extraction is a key enabler to this disruptive technology. Recently, halide perovskites emerge as promising candidates with favorable hot-carrier properties: slow hot-carrier cooling lifetimes several orders of magnitude longer than conventional solar cell absorbers, long-range hot-carrier transport (up to ≈600 nm), and highly efficient hot-carrier extraction (up to ≈83%). This review presents the developmental milestones, distills the complex photophysical findings, and highlights the challenges and opportunities in this emerging field. A developmental toolbox for engineering the slow hot-carrier cooling properties in halide perovskites and prospects for perovskite hot-carrier solar cells are also discussed.
URI: https://hdl.handle.net/10356/138048
ISSN: 0935-9648
DOI: 10.1002/adma.201802486
Rights: This is the peer reviewed version of the following article: Li, M., Fu, J., Xu, Q., & Sum, T. C. (2019). Slow hot‐carrier cooling in halide perovskites : prospects for hot‐carrier solar cells. Advanced Materials, 31(47), 1802486-, which has been published in final form at https://doi.org/10.1002/adma.201802486. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions.
Fulltext Permission: embargo_20201129
Fulltext Availability: With Fulltext
Appears in Collections:SPMS Journal Articles

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