Design of small molecular hole-transporting materials for stable and high-performance perovskite solar cells
Jiang-Yang Shao,Yu-Wu Zhong +1 more
- Vol. 2, Iss: 2, pp 021302
TLDR
In this article, a review summarizes the recent developments in highly efficient small molecular hole-transporting materials with a power conversion efficiency close to or over 20% in perovskite solar cells.Abstract:
Perovskite solar cells represent one of the most exciting developments in photovoltaics in the past decade, with the power conversion efficiencies of over 25% being achieved to date. In high-performance perovskite solar cells, hole-transporting materials are generally employed to extract and transport holes from perovskite. Among them, small molecular hole transporting materials have attracted intense interest due to their tunable energy levels, structural variety, and simple synthesis. The commonly used hole-transporting material is 2,2′,7,7′-tetrakis(N,N-di-p-methoxyphenyl amino)-9,9′-spirobifluorene (spiro-OMeTAD). Considering the high synthetic cost of spiro-OMeTAD and the device stability issue associated with the use of dopants, much research has been focused on the development of alternative high-performance hole-transporting materials. Herein, this review summarizes the recent developments in highly efficient small molecular hole-transporting materials with a power conversion efficiency close to or over 20%. On the basis of their structural features, three categories of small molecules are identified and discussed as highly efficient hole-transporting materials: spiro molecules with new terminal groups or a new spiro skeleton, star-shaped small molecular hole-transporting materials with three or four branches, and linear hole-transporting materials with a D-A, D-π-D, D-A-D, or D-A-π-A-D structure. The relationships of the optoelectronic properties of these hole-transporting materials and the device performance are discussed, with a comparison to those of model compounds in some cases. Finally, an outlook is addressed on the future development of hole-transporting materials for high-performance perovskite solar cells. We hope that this review can provide important guidance for the design and synthesis of new hole-transporting materials and finally help to promote the commercialization of perovskite solar cells.read more
Citations
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Journal ArticleDOI
Design and optimization of CuSCN/CH3NH3PbI3/TiO2 perovskite solar cell for efficient performance
TL;DR: In this paper, a perovskite solar cell with FTO/CuSCN/Perovsite/TiO 2/Metal was proposed and analyzed theoretically using SCAPS-1D software.
Journal ArticleDOI
Conjugation Engineering of Spiro-Based Hole Transport Materials for Efficient and Stable Perovskite Solar Cells
TL;DR: In this paper , an effective linearization strategy and conjugate engineering modulation was proposed to improve the hole mobility and hydrophobicity of spiro-type hole transport materials.
Journal ArticleDOI
Design and optimization of CuSCN/CH<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline" id="d1e792" altimg="si1.svg"><mml:msub><mml:mrow /><mml:mrow><mml:mn>3</mml:mn></mml:mrow></mml:msub></mml:math>NH<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline" id="d1e800" altimg="si1.svg"><mml:msub><mml:mrow /><mml:mrow><mml:mn>3</mml:mn></mml:mrow></mml:msub></mml:math>PbI<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline" id="d1e808" …
TL;DR: In this paper , a perovskite solar cell with FTO/CuSCN/Perovsite/TiO 2 /Metal was proposed and analyzed theoretically using SCAPS-1D software.
Journal ArticleDOI
Recent progress in perovskite solar cells: material science
Jiang-Yang Shao,Dongmei Li,Jiang Tian Shi,Chuang Ma,You Jun Wang,Xiaomin Liu,Xianyuan Jiang,Mengmeng Hao,Luozheng Zhang,Chang Liu,Yiting Jiang,Zhenhan Wang,Yu-Wu Zhong,Shengzhong Frank Liu,Yaohua Mai,Yongsheng Liu,Yixin Zhao,Zhijun Ning,Lianzhou Wang,Baomin Xu,Lei Meng,Zuqiang Bian,Ziyi Ge,Xiaowei Zhan,Jingbi You,Yongfang Li,Qingbo Meng +26 more
TL;DR: In this article , the authors summarized the recent major advances in the research of perovskite solar cells from a material science perspective, and discussed the major issues limiting the production of solar cells and the prospects for the future development of related materials.
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