scholarly journals A Brief Review of the Role of 2D Mxene Nanosheets toward Solar Cells Efficiency Improvement

Nanomaterials ◽  
2021 ◽  
Vol 11 (10) ◽  
pp. 2732
Author(s):  
T. F. Alhamada ◽  
M. A. Azmah Hanim ◽  
D. W. Jung ◽  
A. A. Nuraini ◽  
W. Z. Wan Hasan
Keyword(s):  
Solar Cells ◽  
Conversion Efficiency ◽  
Perovskite Solar Cells ◽  
Building Blocks ◽  
Hole Transport ◽  
Transport Layer ◽  
Hole Transport Layer ◽  
Cost Ratio ◽  
Quality Cost ◽  
Research Issues

This article discusses the application of two-dimensional metal MXenes in solar cells (SCs), which has attracted a lot of interest due to their outstanding transparency, metallic electrical conductivity, and mechanical characteristics. In addition, some application examples of MXenes as an electrode, additive, and electron/hole transport layer in perovskite solar cells are described individually, with essential research issues highlighted. Firstly, it is imperative to comprehend the conversion efficiency of solar cells and the difficulties of effectively incorporating metal MXenes into the building blocks of solar cells to improve stability and operational performance. Based on the analysis of new articles, several ideas have been generated to advance the exploration of the potential of MXene in SCs. In addition, research into other relevant MXene suitable in perovskite solar cells (PSCs) is required to enhance the relevant work. Therefore, we identify new perspectives to achieve solar cell power conversion efficiency with an excellent quality–cost ratio.

scholarly journals Application of MXenes in Perovskite Solar Cells: A Short Review

Nanomaterials ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 2151
Author(s):  
Syed Shah ◽  
Muhammad Sayyad ◽  
Karim Khan ◽  
Jinghua Sun ◽  
Zhongyi Guo
Keyword(s):  
Solar Cells ◽  
Carrier Mobility ◽  
Perovskite Solar Cells ◽  
Building Blocks ◽  
Short Review ◽  
Hole Transport ◽  
Transport Layer ◽  
Electron Transport Layer ◽  
Hole Transport Layer ◽  
Superior Mechanical Properties

Application of MXene materials in perovskite solar cells (PSCs) has attracted considerable attention owing to their supreme electrical conductivity, excellent carrier mobility, adjustable surface functional groups, excellent transparency and superior mechanical properties. This article reviews the progress made so far in using Ti3C2Tx MXene materials in the building blocks of perovskite solar cells such as electrodes, hole transport layer (HTL), electron transport layer (ETL) and perovskite photoactive layer. Moreover, we provide an outlook on the exciting opportunities this recently developed field offers, and the challenges faced in effectively incorporating MXene materials in the building blocks of PSCs for better operational stability and enhanced performance.

scholarly journals Crowning lithium ions in hole transport layer toward stable perovskite solar cells

2021 ◽  
Author(s):  
Ying Shen ◽  
Kaimo Deng ◽  
Qinghua Chen ◽  
Gui Gao ◽  
liang li
Keyword(s):  
Solar Cells ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Phase Transfer ◽  
Power Conversion ◽  
Perovskite Solar Cells ◽  
Hole Transport ◽  
Transport Layer ◽  
Hole Transport Layer ◽  
Widespread Application

Abstract State-of-art perovskite solar cells exhibit comparable power conversion efficiency to silicon photovoltaics. However, the device stability remains a major obstacle that restricts widespread application. Doping hole transport layer induced hygroscopicity, ion diffusion, and use of polar solvent are detrimental factors for performance degradation of perovskite solar cells. Here, we report phase transfer catalyzed LiTFSI doping in Spiro-OMeTAD to address these negative impacts. 12-crown-4 as an efficient phase transfer catalyst promotes the dissolution of LiTFSI without requiring acetonitrile. Crowning Li+ ions by forming more stable and less diffusive crown ether-Li+ complexes retards the generation of hygroscopic lithium oxides and mitigates Li+ ion migration. Optimized solar cells deliver enhanced power conversion efficiency and significantly improved stability under humid and thermal conditions compared with the control device. This method can also be applied to dope π-conjugated polymer. Our findings provide a facile avenue to improve the long-term stability of perovskite solar cells.

Air-processed, efficient CH3NH3PbI3−xClx perovskite solar cells with organic polymer PTB7 as a hole-transport layer

RSC Advances ◽  
2015 ◽  
Vol 5 (82) ◽  
pp. 66981-66987 ◽  
Author(s):  
Yangyang Du ◽  
Hongkun Cai ◽  
Jian Ni ◽  
Juan Li ◽  
Hailong Yu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Power Conversion ◽  
Perovskite Solar Cells ◽  
Ambient Air ◽  
Hole Transport ◽  
Transport Layer ◽  
Organic Polymer ◽  
Hole Transport Layer

Solution-processed perovskite solar cells (PSCs), which utilized organic poly PTB7 as a hole-transport layer, achieved a power conversion efficiency (PCE) as high as 13.29% when fabricated in ambient air.

The effects of electron and hole transport layer with the electrode work function on perovskite solar cells

2016 ◽  
Vol 30 (27) ◽  
pp. 1650341 ◽  
Author(s):  
Quanrong Deng ◽  
Yiqi Li ◽  
Lian Chen ◽  
Shenggao Wang ◽  
Geming Wang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Work Function ◽  
Conversion Efficiency ◽  
Perovskite Solar Cells ◽  
Hole Transport ◽  
Transport Layer ◽  
Electron Transport Layer ◽  
Hole Transport Layer ◽  
Device Performance ◽  
Interface Defects

The effects of electron and hole transport layer with the electrode work function on perovskite solar cells with the interface defects were simulated by using analysis of microelectronic and photonic structures-one-dimensional (AMPS-1D) software. The simulation results suggest that TiO2 electron transport layer provides best device performance with conversion efficiency of 25.9% compared with ZnO and CdS. The threshold value of back electrode work function for Spiro-OMeTAD, NiO, CuI and Cu2O hole transport layer are calculated to be 4.9, 4.8, 4.7 and 4.9 eV, respectively, to reach the highest conversion efficiency. The mechanisms of device physics with various electron and hole transport materials are discussed in details. The device performance deteriorates gradually as the increased density of interface defects located at ETM/absorber or absorber/HTM. This research results can provide helpful guidance for materials and metal electrode choice for perovskite solar cells.

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