Bifacial Si heterojunction-perovskite organic-inorganic tandem to produce highly efficient (ηT* ~ 33%) solar cell
Abstract
As single junction photovoltaic (PV) technologies, both Si heterojunction (HIT) and perovskite based solar cells promise high efficiencies at low cost. Intuitively, a traditional tandem cell design with these cells connected in series is expected to improve the efficiency further. Using a self-consistent numerical modeling of optical and transport characteristics, however, we find that a traditional series connected tandem design suffers from low JSC due to band-gap mismatch and current matching constraints. Furthermore, a traditional tandem cell with state-of-the-art HIT (η = 24%) and perovskite (η = 20%) sub-cells provides only a modest tandem efficiency of ηT~ 25%. Instead, we demonstrate that a bifacial HIT/perovskite tandem design decouples the optoelectronic constraints and provides an innovative path for extraordinary efficiencies. In the bifacial configuration, the same state-of-the-art sub-cells achieve a normalized output of ηT* = 33%, exceeding the bifacial HIT performance at practical albedo reflections. Unlike the traditional design, this bifacial design is relatively insensitive to perovskite thickness variations, which may translate to simpler manufacture and higher yield.
- Authors:
-
- Purdue Univ., West Lafayette, IN (United States)
- Publication Date:
- Research Org.:
- Stanford Univ., CA (United States)
- Sponsoring Org.:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE), Renewable Power Office. Solar Energy Technologies Office
- OSTI Identifier:
- 1579850
- Grant/Contract Number:
- EE0004946
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Applied Physics Letters
- Additional Journal Information:
- Journal Volume: 106; Journal Issue: 24; Journal ID: ISSN 0003-6951
- Publisher:
- American Institute of Physics (AIP)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 14 SOLAR ENERGY
Citation Formats
Asadpour, Reza, Chavali, Raghu V. K., Khan, M. Ryyan, and Alam, Muhammad A. Bifacial Si heterojunction-perovskite organic-inorganic tandem to produce highly efficient (ηT* ~ 33%) solar cell. United States: N. p., 2015.
Web. doi:10.1063/1.4922375.
Asadpour, Reza, Chavali, Raghu V. K., Khan, M. Ryyan, & Alam, Muhammad A. Bifacial Si heterojunction-perovskite organic-inorganic tandem to produce highly efficient (ηT* ~ 33%) solar cell. United States. https://doi.org/10.1063/1.4922375
Asadpour, Reza, Chavali, Raghu V. K., Khan, M. Ryyan, and Alam, Muhammad A. Mon .
"Bifacial Si heterojunction-perovskite organic-inorganic tandem to produce highly efficient (ηT* ~ 33%) solar cell". United States. https://doi.org/10.1063/1.4922375. https://www.osti.gov/servlets/purl/1579850.
@article{osti_1579850,
title = {Bifacial Si heterojunction-perovskite organic-inorganic tandem to produce highly efficient (ηT* ~ 33%) solar cell},
author = {Asadpour, Reza and Chavali, Raghu V. K. and Khan, M. Ryyan and Alam, Muhammad A.},
abstractNote = {As single junction photovoltaic (PV) technologies, both Si heterojunction (HIT) and perovskite based solar cells promise high efficiencies at low cost. Intuitively, a traditional tandem cell design with these cells connected in series is expected to improve the efficiency further. Using a self-consistent numerical modeling of optical and transport characteristics, however, we find that a traditional series connected tandem design suffers from low JSC due to band-gap mismatch and current matching constraints. Furthermore, a traditional tandem cell with state-of-the-art HIT (η = 24%) and perovskite (η = 20%) sub-cells provides only a modest tandem efficiency of ηT~ 25%. Instead, we demonstrate that a bifacial HIT/perovskite tandem design decouples the optoelectronic constraints and provides an innovative path for extraordinary efficiencies. In the bifacial configuration, the same state-of-the-art sub-cells achieve a normalized output of ηT* = 33%, exceeding the bifacial HIT performance at practical albedo reflections. Unlike the traditional design, this bifacial design is relatively insensitive to perovskite thickness variations, which may translate to simpler manufacture and higher yield.},
doi = {10.1063/1.4922375},
journal = {Applied Physics Letters},
number = 24,
volume = 106,
place = {United States},
year = {Mon Jun 15 00:00:00 EDT 2015},
month = {Mon Jun 15 00:00:00 EDT 2015}
}
Web of Science
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