Compact-porous hole-transport-layer for highly efficient near-infrared region transparent perovskite solar cells for tandem applications

被引：0
作者：
Tyagi, Barkha [1 ]
Kumar, Neetesh [1 ]
Lee, Hock Beng [1 ]
Song, Young Min [2 ]
Cho, Sinyoung [3 ]
Lee, Jong-Soo [3 ]
Kang, Jae-Wook [1 ]
机构：
[1] Jeonbuk Natl Univ, LANL JBNU Engn Inst Korea, Dept Flexible & Printable Elect, Jeonju 54896, South Korea
[2] Gwangju Inst Sci & Technol, Sch Elect Engn & Comp Sci, 123 Cheomdangwagi Ro, Gwangju 61005, South Korea
[3] DGIST, Dept Energy Sci & Engn, Daegu 42988, South Korea
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2023年 / 960卷
基金：
新加坡国家研究基金会;
关键词：
Energy band structure tailoring; Semitransparent perovskite solar cells; NIR-transparency; Tandem solar cells; Spray-coating; NICKEL-OXIDE; IMPROVED STABILITY; NIOX; BILAYER; EXTRACTION; INTERFACES; FILMS; COST;
D O I：
10.1016/j.jallcom.2023.170970
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Wide-bandgap perovskites solar cells (PSCs) are vital as top cells in perovskite-based tandem solar cells (TSCs). However, poor band alignment with the charge transport layer and unwanted parasitic absorption in the top semitransparent-PSC (ST-PSC) are major factors limiting the power conversion efficiency (PCE) of TSCs. Herein, we present a compact-porous nickel oxide (cp-NiOx) hole-transport layer (HTL) sequentially fabricated using a sol-gel suspension and colloidal suspension of highly crystalline NiOx. The cp-NiOx film exhibited enhanced transparency, mesoporous surface morphology, and better energy band alignment with a 1.68 eV perovskite film for fabricating highly near-infrared transparent (& SIM;92 % (@800-1200 nm)) ST-PSCs. The best cell achieved a PCE of 15.9 %. In addition, a four-terminal perovskite/silicon TSC based on the cp- NiOx HTL achieved an outstanding PCE of & SIM;26.0 %. The tailored energy band structure and reduced parasitic absorption in the near-infrared region of the ST-PSCs based on the cp-NiOx HTL enabled fabrication of highly efficient inverted ST-PSCs for perovskite/silicon TSCs.& COPY; 2023 Elsevier B.V. All rights reserved.
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页数：10
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