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Title: Highly efficient bifacial single-junction perovskite solar cells

Journal Article · · Joule
 [1];  [2]; ORCiD logo [3]; ORCiD logo [4]; ORCiD logo [1];  [5];  [2]; ORCiD logo [1]
  1. National Renewable Energy Laboratory (NREL), Golden, CO (United States). Chemistry and Nanoscience Center
  2. Univ. of Toledo, OH (United States)
  3. National Renewable Energy Laboratory (NREL), Golden, CO (United States). Materials Science Center
  4. National Renewable Energy Laboratory (NREL), Golden, CO (United States). Energy Conversion and Storage Systems Center
  5. National Renewable Energy Laboratory (NREL), Golden, CO (United States). Materials Science Center; Univ. of Colorado, Boulder, CO (United States)

Bifacial photovoltaics (PV) harvest solar irradiance from both their front and rear surfaces, boosting energy conversion efficiency to maximize their electrical power production. For single-junction perovskite solar cells (PSCs), the performance of bifacial configurations is still far behind that of their state-of-the-art monofacial counterparts. Here, in this paper, we report on highly efficient, bifacial, single-junction PSCs based on the p-i-n (or inverted) architecture. We used optical and electrical modeling to design a transparent conducting rear electrode for bifacial PSCs to enable optimized efficiency under a variety of albedo illumination conditions. The bifaciality of the PSCs was about 91%–93%. Under concurrent bifacial measurement conditions, we obtained equivalent, stabilized bifacial power output densities of 26.9, 28.5, and 30.1 mW/cm2 under albedos of 0.2, 0.3, and 0.5, respectively. We further showed that bifacial perovskite PV technology has the potential to outperform its monofacial counterparts with higher energy yields and lower levelized cost of energy (LCOE).

Research Organization:
National Renewable Energy Laboratory (NREL), Golden, CO (United States)
Sponsoring Organization:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Renewable Power Office. Solar Energy Technologies Office
Grant/Contract Number:
AC36-08GO28308; EE0008970; EE0009528; EE0009832
OSTI ID:
1991204
Report Number(s):
NREL/JA-5900-86333; MainId:87106; UUID:c1d07b9d-c9d2-4795-a691-50f7af745124; MainAdminID:69907
Journal Information:
Joule, Journal Name: Joule Journal Issue: 7 Vol. 7; ISSN 2542-4351
Publisher:
Elsevier - Cell PressCopyright Statement
Country of Publication:
United States
Language:
English

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