scholarly journals Perspective on Predominant Metal Oxide Charge Transporting Materials for High-Performance Perovskite Solar Cells

2021 ◽  
Vol 8 ◽  
Author(s):  
Mriganka Singh ◽  
Chih Wei Chu ◽  
Annie Ng
Keyword(s):  
Solar Cells ◽  
Metal Oxide ◽  
Charge Transport ◽  
High Performance ◽  
Collection Efficiency ◽  
Perovskite Solar Cells ◽  
Hole Transport ◽  
Future Research ◽  
Charge Collection Efficiency ◽  
Oxide Charge

Nowadays, the power conversion efficiency of organometallic mixed halide perovskite solar cells (PSCs) is beyond 25%. To fabricate highly efficient and stable PSCs, the performance of metal oxide charge transport layers (CTLs) is one of the key factors. The CTLs are employed in PSCs to separate the electrons and holes generated in the perovskite active layer, suppressing the charge recombination rate so that the charge collection efficiency can be increased at their respective electrodes. In general, engineering of metal oxide electron transport layers (ETLs) is found to be dominated in the research community to boost the performance of PSCs due to the resilient features of ETLs such as excellent electronic properties, high resistance to thermal temperature and moisture, ensuring good device stability as well as their high versatility in material preparation. The metal oxide hole transport layers in PSCs are recently intensively studied. The performance of PSCs is found to be very promising by using optimized hole transport materials. This review concisely discusses the evolution of some prevalent metal oxide charge transport materials (CTMs) including TiO2, SnO2, and NiOx, which are able to yield high-performance PSCs. The article begins with introducing the development trend of PSCs using different types of CTLs, pointing out the important criteria for metal oxides being effective CTLs, and then a variety of preparation methods for CTLs as employed by the community for high-performance PSCs are discussed. Finally, the challenges and prospects for future research direction toward scalable metal oxide CTM-based PSCs are delineated.

Metal Oxide Charge Transport Layers for Efficient and Stable Perovskite Solar Cells

2019 ◽  
Vol 29 (47) ◽  
pp. 1900455 ◽  
Author(s):  
Seong Sik Shin ◽  
Seon Joo Lee ◽  
Sang Il Seok
Keyword(s):  
Solar Cells ◽  
Metal Oxide ◽  
Charge Transport ◽  
Perovskite Solar Cells ◽  
Oxide Charge

High-performance metal oxide-free inverted perovskite solar cells using poly(bis(4-phenyl)(2,4,6-trimethylphenyl)amine) as the hole transport layer

2018 ◽  
Vol 6 (26) ◽  
pp. 6975-6981 ◽  
Author(s):  
Chongyang Xu ◽  
Zhihai Liu ◽  
Eun-Cheol Lee
Keyword(s):  
Solar Cells ◽  
Metal Oxide ◽  
High Performance ◽  
Perovskite Solar Cells ◽  
Hole Transport ◽  
Transport Layer ◽  
Hole Transport Layer ◽  
Transfer Layer ◽  
Hole Transfer

A poly(bis(4-phenyl)(2,4,6-trimethylphenyl)amine) hole transfer layer was used to enhance the performance and lifetime of metal oxide-free inverted perovskite solar cells.

scholarly journals Low-temperature-processed metal oxide electron transport layers for efficient planar perovskite solar cells

Rare Metals ◽  
2021 ◽  
Author(s):  
Jia-Xing Song ◽  
Xin-Xing Yin ◽  
Zai-Fang Li ◽  
Yao-Wen Li
Keyword(s):  
Solar Cells ◽  
Electron Transport ◽  
Low Temperature ◽  
Metal Oxide ◽  
Low Cost ◽  
Perovskite Solar Cells ◽  
Transport Layer ◽  
Electron Transport Layer ◽  
Future Research ◽  
Low Temperature Preparation

Abstract As a promising photovoltaic technology, perovskite solar cells (pero-SCs) have developed rapidly over the past few years and the highest power conversion efficiency is beyond 25%. Nowadays, the planar structure is universally popular in pero-SCs due to the simple processing technology and low-temperature preparation. Electron transport layer (ETL) is verified to play a vital role in the device performance of planar pero-SCs. Particularly, the metal oxide (MO) ETL with low-cost, superb versatility, and excellent optoelectronic properties has been widely studied. This review mainly focuses on recent developments in the use of low-temperature-processed MO ETLs for planar pero-SCs. The optical and electronic properties of widely used MO materials of TiO2, ZnO, and SnO2, as well as the optimizations of these MO ETLs are briefly introduced. The commonly used methods for depositing MO ETLs are also discussed. Then, the applications of different MO ETLs on pero-SCs are reviewed. Finally, the challenge and future research of MO-based ETLs toward practical application of efficient planar pero-SCs are proposed. Graphical abstract

MoS2 incorporated hybrid hole transport layer for high performance and stable perovskite solar cells

2018 ◽  
Vol 246 ◽  
pp. 195-203 ◽  
Author(s):  
Dian Wang ◽  
Naveen Kumar Elumalai ◽  
Md Arafat Mahmud ◽  
Haimang Yi ◽  
Mushfika Baishakhi Upama ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Performance ◽  
Perovskite Solar Cells ◽  
Hole Transport ◽  
Transport Layer ◽  
Hole Transport Layer

Pentacene as a hole transport material for high performance planar perovskite solar cells

2018 ◽  
Vol 18 (10) ◽  
pp. 1095-1100 ◽  
Author(s):  
Xiude Yang ◽  
Gang Wang ◽  
Debei Liu ◽  
Yanqing Yao ◽  
Guangdong Zhou ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Performance ◽  
Perovskite Solar Cells ◽  
Hole Transport

Polyfluorene Copolymers as High‐Performance Hole‐Transport Materials for Inverted Perovskite Solar Cells

Solar RRL ◽  
2019 ◽  
Vol 4 (3) ◽  
pp. 1900384 ◽  
Author(s):  
Jinlong Hu ◽  
Jiang You ◽  
Chang Peng ◽  
Shudi Qiu ◽  
Wenxin He ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Performance ◽  
Perovskite Solar Cells ◽  
Hole Transport

scholarly journals Evaporated MoOx as General Back-Side Hole Collector for Solar Cells

Coatings ◽  
2020 ◽  
Vol 10 (8) ◽  
pp. 763
Author(s):  
Eugenia Bobeico ◽  
Lucia V. Mercaldo ◽  
Pasquale Morvillo ◽  
Iurie Usatii ◽  
Marco Della Noce ◽  
...  
Keyword(s):  
Solar Cells ◽  
Collection Efficiency ◽  
Hole Transport ◽  
Transport Layer ◽  
Hole Transport Layer ◽  
Efficiency Gain ◽  
Back Side ◽  
Charge Collection Efficiency ◽  
Free Hole ◽  
P Type

Substoichiometric molybdenum oxide (MoOx) has good potential as a hole-collecting layer in solar cells. In this paper, we report on the application of ultrathin evaporated MoOx as a hole collector at the back side of two distinct photovoltaic technologies: polymeric and silicon heterojunction (SHJ). In the case of polymer solar cells, we test MoOx as a hole transport layer in devices with inverted architecture. The higher transparency of the MoOx film, compared to the commonly used poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS), allows an enhanced back reflected light into the photoactive layer, thus boosting the photogeneration, as found from the illuminated J-V and external quantum efficiency (EQE) curves. The higher fill factor (FF) of the MoOx-based device also suggests an improved charge collection efficiency compared to the cells with PEDOT:PSS. As for SHJ solar cells, we show that MoOx offers the means for dopant-free hole collection with both p-type and n-type Si wafers. In the present comparison over planar test structures with Ag back reflecting electrodes, we observe an efficiency gain of approximately 1% absolute against a baseline with a conventional p-type amorphous silicon hole collector. The gain is linked to the increased VOC, which is likely due to the reduced recombination at the Si wafer.

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