Hexylammonium Iodide Derived Two-Dimensional Perovskite as Interfacial Passivation Layer in Efficient Two-Dimensional/Three-Dimensional Perovskite Solar Cells

2019 ◽  
Vol 12 (1) ◽  
pp. 698-705 ◽  
Author(s):  
Yanping Lv ◽  
Xuedan Song ◽  
Yanfeng Yin ◽  
Yulin Feng ◽  
Hongru Ma ◽  
...  
Keyword(s):  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Three Dimensional ◽  
Passivation Layer ◽  
Two Dimensional

scholarly journals Advances in Dion-Jacobson phase two-dimensional metal halide perovskite solar cells

Nanophotonics ◽  
2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Tianqi Niu ◽  
Qifan Xue ◽  
Hin-Lap Yip
Keyword(s):  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Three Dimensional ◽  
Metal Halide ◽  
Environmental Stability ◽  
Two Dimensional ◽  
Structure Property ◽  
Photovoltaic Efficiency ◽  
Functional Behavior ◽  
Low Dimensional

Abstract Low-dimensional metal halide perovskites have emerged as promising alternatives to the traditional three-dimensional (3D) components, due to their greater structural tunability and environmental stability. Dion-Jacobson (DJ) phase two-dimensional (2D) perovskites, which are formed by incorporating bulky organic diammonium cations into inorganic frameworks that comprises a symmetrically layered array, have recently attracted increasing research interest. The structure-property characteristics of DJ phase perovskites endow them with a unique combination of photovoltaic efficiency and stability, which has led to their impressive employment in perovskite solar cells (PSCs). Here, we review the achievements that have been made to date in the exploitation of DJ phase perovskites in photovoltaic applications. We summarize the various ligand designs, optimization strategies and applications of DJ phase PSCs, and examine the current understanding of the mechanisms underlying their functional behavior. Finally, we discuss the remaining bottlenecks and future outlook for these promising materials, and possible development directions of further commercial processes.

scholarly journals Engineering fluorinated-cation containing inverted perovskite solar cells with an efficiency of >21% and improved stability towards humidity

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Xiao Wang ◽  
Kasparas Rakstys ◽  
Kevin Jack ◽  
Hui Jin ◽  
Jonathan Lai ◽  
...  
Keyword(s):  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Three Dimensional ◽  
Environmental Stability ◽  
Lead Salt ◽  
Two Dimensional ◽  
High Concentration ◽  
Lead Iodide ◽  
Mole Percent ◽  
Improved Stability

AbstractEfficient and stable perovskite solar cells with a simple active layer are desirable for manufacturing. Three-dimensional perovskite solar cells are most efficient but need to have improved environmental stability. Inclusion of larger ammonium salts has led to a trade-off between improved stability and efficiency, which is attributed to the perovskite films containing a two-dimensional component. Here, we show that addition of 0.3 mole percent of a fluorinated lead salt into the three-dimensional methylammonium lead iodide perovskite enables low temperature fabrication of simple inverted solar cells with a maximum power conversion efficiency of 21.1%. The perovskite layer has no detectable two-dimensional component at salt concentrations of up to 5 mole percent. The high concentration of fluorinated material found at the film-air interface provides greater hydrophobicity, increased size and orientation of the surface perovskite crystals, and unencapsulated devices with increased stability to high humidity.

scholarly journals Stable High-Efficiency Two-Dimensional Perovskite Solar Cells Via Bromine Incorporation

2020 ◽  
Vol 15 (1) ◽  
Author(s):  
Feng Han ◽  
Wenyao Yang ◽  
Hao Li ◽  
Lei Zhu
Keyword(s):  
Solar Cells ◽  
High Efficiency ◽  
Photovoltaic Performance ◽  
Perovskite Solar Cells ◽  
Three Dimensional ◽  
State Density ◽  
Environmental Stability ◽  
Two Dimensional ◽  
Superior Surface ◽  
Photovoltaic Material

Abstract Two-dimensional (2D) organic-inorganic perovskites as one of the most important photovoltaic material used in solar cells have attracted remarkable attention. These 2D perovskites exhibit superior environmental stability and wide tunability of their optoelectronic properties. However, their photovoltaic performance is far behind those of traditional three-dimensional (3D) perovskites. In this work, we demonstrate the power conversion efficiency (PCE) of 2D perovskite solar cells (PVSCs) is greatly improved from 3.01% for initial to 12.19% by the incorporation of PbBr2. The enhanced efficiency is attributed to superior surface quality, enhanced crystallinity, and the resulting reduced trap-state density. Furthermore, PbBr2 incorporated devices without encapsulation show excellent humidity stability, illumination stability, and thermal stability. This work provides a universal and viable avenue toward efficient and stable 2D PVSCs.

Multifunctional Two-Dimensional Conjugated Materials for Dopant-Free Perovskite Solar Cells with Efficiency Exceeding 22%

2021 ◽  
pp. 1521-1532
Author(s):  
Qiang Fu ◽  
Zhiyuan Xu ◽  
Xingchen Tang ◽  
Tingting Liu ◽  
Xiyue Dong ◽  
...  
Keyword(s):  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Two Dimensional ◽  
Conjugated Materials

Electron-transport-layer-free two-dimensional perovskite solar cells based on a flexible poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) cathode

2021 ◽  
Author(s):  
Zhihai Liu ◽  
Lei Wang ◽  
Chongyang Xu ◽  
Xiaoyin Xie
Keyword(s):  
Solar Cells ◽  
Electron Transport ◽  
Power Conversion ◽  
Perovskite Solar Cells ◽  
Transport Layer ◽  
Electron Transport Layer ◽  
Two Dimensional ◽  
High Power Conversion Efficiency ◽  
Long Term Stability

Recently, Ruddlesden–Popper two-dimensional (2D) perovskite solar cells (PSCs) have been intensively studied, owing to their high power conversion efficiency (PCE) and excellent long-term stability. In this work, we fabricated electron-transport-layer-free...

scholarly journals Two-dimensional or passivation treatment: the effect of Hexylammonium post deposition treatment on 3D halide perovskite-based solar cells

2021 ◽  
Author(s):  
Stav Rahmany ◽  
Lioz Etgar
Keyword(s):  
Solar Cells ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Power Conversion ◽  
Perovskite Solar Cells ◽  
Two Dimensional ◽  
Theoretical Limit ◽  
Halide Perovskite ◽  
Passivation Treatment ◽  
Post Deposition

Much effort has been made to push the power conversion efficiency of perovskite solar cells (PSCs) towards the theoretical limit. Recent studies have shown that post deposition treatment of barrier...

scholarly journals Minimizing energy loss in two-dimensional tin halide perovskite solar cells—A perspective

APL Materials ◽  
2021 ◽  
Vol 9 (2) ◽  
pp. 020906
Author(s):  
Tao Zhang ◽  
Qiang Sun ◽  
Xiaoli Zhang ◽  
Yan Shen ◽  
Mingkui Wang
Keyword(s):  
Solar Cells ◽  
Energy Loss ◽  
Perovskite Solar Cells ◽  
Two Dimensional ◽  
Halide Perovskite

Performance improvement of inverted two-dimensional perovskite solar cells using a non-fullerene acceptor as the trap passivator

2021 ◽  
Author(s):  
Eun-Cheol Lee ◽  
Zhihai Liu
Keyword(s):  
Solar Cells ◽  
Power Conversion Efficiency ◽  
Performance Improvement ◽  
High Power ◽  
Power Conversion ◽  
Perovskite Solar Cells ◽  
Two Dimensional ◽  
High Power Conversion Efficiency ◽  
Long Term Stability

Recently, Ruddlesden–Popper two-dimensional (2D) perovskite solar cells (PSCs) have been intensively studied, owing to their high power conversion efficiency (PCE) and excellent long-term stability. In this work, we improved the...

Sign in / Sign up

Export Citation Format

Share Document