Featuring Semitransparent p–i–n Perovskite Solar Cells for High‐Efficiency Four‐Terminal/Silicon Tandem Solar Cells. Issue 4 (19th January 2022)

• Record Type: Journal Article
• Authors: Lee, Pei-Huan; Wu, Ting-Tzu; Li, Chia-Feng; Glowienka, Damian; Huang, Yu-Xuan; Huang, Shih-Han; Huang, Yu-Ching; Su, Wei-Fang
• Is Part Of: Solar RRL. Volume 6:Issue 4(2022)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2022-01-19
• Subjects: conducting oxides -- near infrared -- perovskites -- semitransparent solar cells -- silicon -- tandem -- transmission; Solar energy -- Periodicals; Photovoltaic power generation -- Periodicals; Solar energy -- Research -- Periodicals; Photovoltaic power generation -- Research -- Periodicals; Periodicals; 333.7923
• DOI: 10.1002/solr.202100891
• Languages: English
• ISSNs: 2367-198X

Abstract

Abstract : Two issues need to be resolved when fabricating p–i–n semitransparent perovskite solar cells (ST‐PVSCs) for four‐terminal (4 T) perovskite/silicon tandem solar cells: 1) damage to the underlying absorber (MAPbI3 ), electron transporting layer ([6, 6]‐phenyl‐C61 ‐butyric acid methyl ester, PCBM), and work function (WF) modifier (polyethylenimine, PEI), resulting from the harsh sputtering conditions for the transparent electrodes (TEs) and 2) low average near‐infrared transmittance (ANT) of TEs. Herein, a unique SnO2 layer to protect the MAPbI3 and PCBM layers is developed and functions as a WF modifier for a new TE (cerium‐doped indium oxide, ICO), which exhibits an excellent ANT of 86.7% in the range of 800−1200 nm. Moreover, a MAPbI3 ‐based p–i–n ST‐PVSC is prepared, achieving an excellent power conversion efficiency (PCE) of 17.23%. When it is placed over the Si solar cell, a 4 T tandem solar cell with a PCE of 26.14% is obtained. Abstract : Herein, a unique SnO2 layer to protect the underlaying layers from damage of the sputtered transparent electrode is developed. Moreover, a high‐near‐infrared transparent perovskite solar cell using cerium‐doped indium oxide is prepared, achieving a record power conversion efficiency (PCE) of 17.23%. As a result, a four‐terminal perovskite/silicon tandem solar cell with a PCE of 26.14% is obtained.