Highly Efficient Bifacial Single-Junction Perovskite Solar Cells

Qi Jiang, Zhaoning Song, Rosemary Bramante, Paul Ndione, Robert Tirawat, Joseph Berry, Yanfa Yan, Kai Zhu

Research output: Contribution to journalArticlepeer-review

20 Scopus Citations

Abstract

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, 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).

Original languageAmerican English
Pages (from-to)1543-1555
Number of pages13
JournalJoule
Volume7
Issue number7
DOIs
StatePublished - 2023

Bibliographical note

Publisher Copyright:
© 2023 Elsevier Inc.

NREL Publication Number

  • NREL/JA-5900-86333

Keywords

  • albedo
  • bifacial
  • energy yield
  • levelized cost of energy
  • perovskite solar cells

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