Enhancement of 3D/2D Perovskite Solar Cells Using an F4TCNQ Molecular Additive
文献类型：期刊论文
| 作者 | Sun, Jingsong; Chandrasekaran, Naresh; Liu, Chang; Scully, Andrew D.; Yin, Wenping; Ng, Chun Kiu; Jasieniak, Jacek J. |
| 刊名 | ACS APPLIED ENERGY MATERIALS
 |
| 出版日期 | 2020 |
| 卷号 | 3期号:9页码:8205-8215 |
| 关键词 | HALIDE PEROVSKITE HIGHLY EFFICIENT RECOMBINATION STABILITY |
| DOI | 10.1021/acsaem.0c00553 |
| 英文摘要 | Recent developments in hybrid organic-inorganic lead halide perovskite solar cells (PSCs) have shown that use of a 2-dimensional (2D) perovskite capping layer on a 3D perovskite absorber layer (3D/2D PSCs) results in substantially improved environmental stability of the devices. However, in these 3D/2D PSC structures the poor charge transporting properties through the 2D layer hinder device performance, particularly for thicker 2D layers. Here, we report a facile method that overcomes some of the inherent challenges in using such 2D capping layers through the introduction of 2,3,5,6-tetrafluoro-7,7,8,8-tetracyanoquinodimethane (F4TCNQ) as a molecular additive into the 2D layer. It is found that this additive undergoes partial charge transfer with the perovskite layer to provide a passivation effect, which also modifies the crystalline domain sizes of the 2D perovskite. PSCs incorporating a F4TCNQ-modified 2D capping layer grown in situ on top of the 3D Cs/MA/FA mixed-cation perovskite absorber layer display modified interfacial characteristics that yield improved charge extraction and reduced charge recombination compared with 3D/2D PSCs comprising an unmodified 2D capping layer. This modification results in 3D/2D PSCs for which the maximum power conversion efficiency is increased to more than 20% compared with 18.2% for unmodified 2D capping layers. |
| 学科主题 | Chemistry ; Energy & Fuels ; Materials Science |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/20474]  |
| 专题 | 2020专题 2020专题_期刊论文 |
| 作者单位 | 1.Jasieniak, JJ (corresponding author), Monash Univ, ARC Ctr Excellence Exciton Sci, Clayton, Vic 3800, Australia. 2.Jasieniak, JJ (corresponding author), Monash Univ, Dept Mat Sci & Engn, Clayton, Vic 3800, Australia. |
| 推荐引用方式 GB/T 7714 | Sun, Jingsong,Chandrasekaran, Naresh,Liu, Chang,et al. Enhancement of 3D/2D Perovskite Solar Cells Using an F4TCNQ Molecular Additive[J]. ACS APPLIED ENERGY MATERIALS,2020,3(9):8205-8215. |
| APA | Sun, Jingsong.,Chandrasekaran, Naresh.,Liu, Chang.,Scully, Andrew D..,Yin, Wenping.,...&Jasieniak, Jacek J..(2020).Enhancement of 3D/2D Perovskite Solar Cells Using an F4TCNQ Molecular Additive.ACS APPLIED ENERGY MATERIALS,3(9),8205-8215. |
| MLA | Sun, Jingsong,et al."Enhancement of 3D/2D Perovskite Solar Cells Using an F4TCNQ Molecular Additive".ACS APPLIED ENERGY MATERIALS 3.9(2020):8205-8215. |
入库方式： OAI收割
来源：宁波材料技术与工程研究所
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