Solution processed Cu2CdSnS4 as a low-cost inorganic hole transport material for polymer solar cells

The use of solution-processed photovoltaics is a low cost, low material-consuming way to harvest abundant solar energy. Organic semiconductors based on perovskite or colloidal quantum dot photovoltaics have been well developed in recent years; however, stability is still an important issue for these photovoltaic devices. By combining solution processing, chemical treatment, and sintering technology, compact and efficient CdTe nanocrystal (NC) solar cells can be fabricated with high stability by optimizing the architecture of devices. Here, we review the progress on solution-processed CdTe NC-based photovoltaics. We focus particularly on NC materials and the design of devices that provide a good p–n junction quality, a graded bandgap for extending the spectrum response, and interface engineering to decrease carrier recombination. We summarize the progress in this field and give some insight into device processing, including element doping, new hole transport material application, and the design of new devices.

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Research Progress on Polymer Solar Cells Based on PEDOT:PSS Electrodes

Polymers ◽

10.3390/polym12010145 ◽

2020 ◽

Vol 12 (1) ◽

pp. 145 ◽

Cited By ~ 7

Author(s):

Lin Hu ◽

Jiaxing Song ◽

Xinxing Yin ◽

Zhen Su ◽

Zaifang Li

Keyword(s):

Solar Cells ◽

Work Function ◽

High Performance ◽

Polymer Solar Cells ◽

Low Cost ◽

Perovskite Solar Cells ◽

Research Progress ◽

Materials Synthesis ◽

Solution Processed ◽

Single Junction

Solution-processed polymer solar cells (PSCs) have attracted dramatically increasing attention over the past few decades owing to their advantages of low cost, solution processability, light weight, and excellent flexibility. Recent progress in materials synthesis and devices engineering has boosted the power conversion efficiency (PCE) of single-junction PSCs over 17%. As an emerging technology, it is still a challenge to prepare solution-processed flexible electrodes for attractive flexible PSCs. Poly(3,4-ethylenedioxythiophene): poly(styrenesulfonate) (PEDOT:PSS) is one of the most promising candidates for electrodes due to its high conductivity (>4000 S/cm), excellent transmittance (>90%), intrinsically high work function (WF > 5.0 eV), and aqueous solution processability. To date, a great number of single-junction PSCs based on PEDOT:PSS electrodes have realized a PCE over 12%. In this review, we introduce the current research on the conductive complex PEDOT:PSS as well as trace the development of PEDOT:PSS used in electrodes for high performance PSCs and perovskite solar cells. We also discuss and comment on the aspects of conductivity, transmittance, work-function adjustment, film preparing methods, and device fabrications. A perspective on the challenges and future directions in this field is be offered finally.

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Solution-processed MoSxthin-films as hole-transport layers for efficient polymer solar cells

RSC Advances ◽

10.1039/c6ra01204c ◽

2016 ◽

Vol 6 (45) ◽

pp. 39137-39143 ◽

Cited By ~ 5

Author(s):

Jiajun Wei ◽

Zhigang Yin ◽

Shan-Ci Chen ◽

Dongdong Cai ◽

Qingdong Zheng

Keyword(s):

Solar Cells ◽

Polymer Solar Cells ◽

Hole Transport ◽

Solution Processed ◽

Hole Transport Layers

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Recent Progress in Hybrid Solar Cells Based on Solution-Processed Organic and Semiconductor Nanocrystal: Perspectives on Device Design

Applied Sciences ◽

10.3390/app10124285 ◽

2020 ◽

Vol 10 (12) ◽

pp. 4285 ◽

Cited By ~ 2

Author(s):

Sihang Xie ◽

Xueqi Li ◽

Yasi Jiang ◽

Rourou Yang ◽

Muyi Fu ◽

...

Keyword(s):

Solar Cells ◽

High Performance ◽

High Efficiency ◽

Low Cost ◽

Hole Transport ◽

Commercial Application ◽

Hybrid Solar Cells ◽

Solution Processed ◽

Device Architecture ◽

Device Processing

Solution-processed hybrid solar cells have been well developed in the last twenty years due to the advantages of low cost, low material-consuming and simple fabricating technology. However, the performance, stability and film quality of hybrid solar cells need to be further improved for future commercial application (with a lifetime up to 20 years and power conversion efficiency higher than 15%). By combining the merits of organic polymers and nanocrystals (NC), the reasonable design of interface engineering and device architecture, the performance coupled with stability of hybrid solar cells can be significantly improved. This review gives a brief conclusive introduction to the progress on solution-processed organic/inorganic semiconductor hybrid solar cells, including a summary of the development of hybrid solar cells in recent years, the strategy of hybrid solar cells with different structures and the incorporation of new organic hole transport materials with new insight into device processing for high efficiency. This paper also puts forward some suggestions and guidance for the future development of high-performance NC-based photovoltaics.

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Low-cost solution-processed copper iodide as an alternative to PEDOT:PSS hole transport layer for efficient and stable inverted planar heterojunction perovskite solar cells

Journal of Materials Chemistry A ◽

10.1039/c5ta05286f ◽

2015 ◽

Vol 3 (38) ◽

pp. 19353-19359 ◽

Cited By ~ 147

Author(s):

Wei-Yi Chen ◽

Lin-Long Deng ◽

Si-Min Dai ◽

Xin Wang ◽

Cheng-Bo Tian ◽

...

Keyword(s):

Solar Cells ◽

High Efficiency ◽

Low Cost ◽

Perovskite Solar Cells ◽

Hole Transport ◽

Transport Layer ◽

Hole Transport Layer ◽

Copper Iodide ◽

Solution Processed ◽

Planar Heterojunction

Low-cost solution-processed copper iodide replaces PEDOT:PSS in inverted planar heterojunction perovskite solar cells with high efficiency and enhanced stability.

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