Journal ArticleDOI
Dopant-Free Organic Hole-Transporting Material for Efficient and Stable Inverted All-Inorganic and Hybrid Perovskite Solar Cells.
Kui Jiang,Kui Jiang,Jing Wang,Fei Wu,Qifan Xue,Qin Yao,Jianquan Zhang,Yihuang Chen,Guangye Zhang,Zonglong Zhu,He Yan,Linna Zhu,Hin-Lap Yip +12 more
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TLDR
The synthesis of a novel 3D small molecule named TPE-S and its application as an HTM in PVSCs are shown, which demonstrate a remarkable efficiency of 15.4% along with excellent stability, which is the one of the highest reported values for inverted all-inorganic PV SCs.Abstract:
Designing new hole-transporting materials (HTMs) with desired chemical, electrical, and electronic properties is critical to realize efficient and stable inverted perovskite solar cells (PVSCs) with a p-i-n structure. Herein, the synthesis of a novel 3D small molecule named TPE-S and its application as an HTM in PVSCs are shown. The all-inorganic inverted PVSCs made using TPE-S, processed without any dopant or post-treatment, are highly efficient and stable. Compared to control devices based on the commonly used HTM, PEDOT:PSS, devices based on TPE-S exhibit improved optoelectronic properties, more favorable interfacial energetics, and reduced recombination due to an improved trap passivation effect. As a result, the all-inorganic CsPbI2 Br PVSCs based on TPE-S demonstrate a remarkable efficiency of 15.4% along with excellent stability, which is the one of the highest reported values for inverted all-inorganic PVSCs. Meanwhile, the TPE-S layer can also be generally used to improve the performance of organic/inorganic hybrid inverted PVSCs, which show an outstanding power conversation efficiency of 21.0%, approaching the highest reported efficiency for inverted PVSCs. This work highlights the great potential of TPE-S as a simple and general dopant-free HTM for different types of high-performance PVSCs.read more
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Toward ideal hole transport materials: a review on recent progress in dopant-free hole transport materials for fabricating efficient and stable perovskite solar cells
TL;DR: In this paper, the authors summarize the recent progress in dopant-free hole transport materials (HTMs) including organic small molecules, polymers, organometallic compounds, and inorganic materials.
Journal ArticleDOI
D-A-π-A-D-type Dopant-free Hole Transport Material for Low-Cost, Efficient, and Stable Perovskite Solar Cells
Tianqi Niu,Weiya Zhu,Yiheng Zhang,Qifan Xue,Xuechen Jiao,Zijie Wang,Yue-Min Xie,Ping Li,Runfeng Chen,Fei Huang,Yuan Li,Hin-Lap Yip,Yong Cao +12 more
TL;DR: In this paper, the authors proposed DTB-FL, a low-cost and efficient hole transport materials (HTM) for the commercialization of perovskite solar cells (PSCs), featuring facile synthesis and excellent optoelectronic properties.
Journal ArticleDOI
Teaching an Old Anchoring Group New Tricks: Enabling Low-Cost, Eco-Friendly Hole-Transporting Materials for Efficient and Stable Perovskite Solar Cells.
Yang Wang,Qiaogan Liao,Qiaogan Liao,Jianhua Chen,Wei Huang,Xinming Zhuang,Yumin Tang,Bolin Li,Xiyu Yao,Xiyuan Feng,Xianhe Zhang,Mengyao Su,Zhubing He,Tobin J. Marks,Antonio Facchetti,Xugang Guo +15 more
TL;DR: A traditional anchoring group (2-cyanoacrylic acid) widely used in molecules for dye-sensitized solar cells is incorporated into donor-acceptor type HTMs to afford MPA-BT-CA, which enables effective regulation of the frontier molecular orbital energy levels and efficient defect passivation toward perovskite layer.
Journal ArticleDOI
Strategies of modifying spiro-OMeTAD materials for perovskite solar cells: a review
Guanhua Ren,Wenbin Han,Yanyu Deng,Wei Wu,Zhuowei Li,Jiaxin Guo,Hongchang Bao,Chunyu Liu,Wenbin Guo +8 more
TL;DR: In this article, the influence of different doping strategies and corresponding doping mechanisms on device performance and stability was mainly discussed, and the stability issues of doped spiro-OMeTAD based PSCs were also described.
Journal ArticleDOI
Multifunctional Chemical Bridge and Defect Passivation for Highly Efficient Inverted Perovskite Solar Cells
TL;DR: In this article, the interfacial recombination at the perovskite/hole conductor interface generally results in significant energy losses in inverted perov-skite solar cells (PSCs) with a p-i-n device architecture.
References
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Journal ArticleDOI
Solvent engineering for high-performance inorganic–organic hybrid perovskite solar cells
TL;DR: A bilayer architecture comprising the key features of mesoscopic and planar structures obtained by a fully solution-based process is reported, providing important progress towards the understanding of the role of solution-processing in the realization of low-cost and highly efficient perovskite solar cells.
Journal ArticleDOI
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Journal ArticleDOI
Iodide management in formamidinium-lead-halide–based perovskite layers for efficient solar cells
Woon Seok Yang,Byung-wook Park,Eui Hyuk Jung,Nam Joong Jeon,Young Chan Kim,Dong Uk Lee,Seong Sik Shin,Jangwon Seo,Eun Kyu Kim,Jun Hong Noh,Sang Il Seok +10 more
TL;DR: The introduction of additional iodide ions into the organic cation solution, which is used to form the perovskite layers through an intramolecular exchanging process, decreases the concentration of deep-level defects, enabling the fabrication of PSCs with a certified power conversion efficiency.
Journal ArticleDOI
Poly(3,4‐ethylenedioxythiophene) and Its Derivatives: Past, Present, and Future
TL;DR: An overview of 3,4-ethylenedioxythiophene (PEDT) and its derivatives can be found in this article, along with a description of the broad array of properties accessible and a set of the more prominent applications in which they can be utilized.
Journal ArticleDOI
Efficient and stable large-area perovskite solar cells with inorganic charge extraction layers
Wei Chen,Wei Chen,Yongzhen Wu,Youfeng Yue,Jian Liu,Wenjun Zhang,Xudong Yang,Han Chen,Enbing Bi,Islam Ashraful,Michael Grätzel,Liyuan Han,Liyuan Han +12 more
TL;DR: Heavy doped inorganic charge extraction layers in planar PSCs were used to achieve very rapid carrier extraction, even with 10- to 20-nanometer-thick layers, avoiding pinholes and eliminating local structural defects over large areas.