Journal ArticleDOI
Defect engineering in wide-bandgap perovskites for efficient perovskite–silicon tandem solar cells
Guang Yang,Zhenyi Ni,Zhengshan J. Yu,Bryon W. Larson,Zhenhua Yu,Bo Chen,Abdulwahab Alasfour,Xun Xiao,Joseph M. Luther,Zachary C. Holman,Jinsong Huang +10 more
TLDR
In this article , a tribromide ion was used to suppress the iodide interstitial formation and thus reduce charge recombination in bladed WBG perovskite films of Cs0.1FA0.2MA0.7Pb(I0.85Br0.15)3.Abstract:
Wide-bandgap (WBG) mixed-halide perovskites show promise of realizing efficient tandem solar cells but at present suffer from large open-circuit voltage loss and the mechanism is still unclear. Here we show that WBG perovskites with iodide–bromide compositions have an increased concentration of deep traps induced by iodide interstitials, which limits performance of WBG perovskite cells. We employ tribromide ions to suppress the iodide interstitial formation and thus reduce charge recombination in bladed WBG perovskite films of Cs0.1FA0.2MA0.7Pb(I0.85Br0.15)3. The 1-µm-thick opaque WBG perovskite solar cells have an efficiency of 21.9%, a small open-circuit voltage deficit of 0.40 V and a large fill factor of 83%. The efficiency of the best-performing monolithic perovskite–silicon tandem cell using this perovskite reaches 28.6%. The tribromide addition also suppresses light-induced phase segregation in WBG perovskites and thus enhance device stability. Encapsulated tandem cells maintain 93% of their initial efficiency after operation for 550 h. Efficient perovskite–silicon tandem solar cells with an efficiency of up to 28.6% are reported by employing tribromide ions to reduce charge recombination. read more
Citations
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Journal ArticleDOI
Device Performance of Emerging Photovoltaic Materials (Version 3)
Osbel Almora,Derya Baran,Guillermo C. Bazan,Carlos I. Cabrera,Sule Erten-Ela,Karen Forberich,Fei Guo,Jens Hauch,Anita Ho-Baillie,T. Jesper Jacobsson,René A. J. Janssen,Thomas Kirchartz,Nikos Kopidakis,Maria Antonietta Loi,Richard R. Lunt,Xavier Mathew,Michael D. McGehee,Jie Min,David B. Mitzi,Mohammad Khaja Nazeeruddin,Jenny Nelson,Ana Flávia Nogueira,Ulrich W. Paetzold,Barry P. Rand,Uwe Rau,Henry J. Snaith,Eva L. Unger,Lídice Vaillant-Roca,Chenchen Yang,Hin-Lap Yip,Christoph J. Brabec +30 more
TL;DR: In this paper , the best achievements in the performance of emerging photovoltaic devices in diverse emerging PV research subjects are summarized, as reported in peer-reviewed articles in academic journals since August 2021.
Journal ArticleDOI
Recent progress in perovskite solar cells: from device to commercialization
Xinhui Luo,Xuesong Lin,Feng Gao,Yang Zhao,Xiaodong Li,Liqing Zhan,Zexiong Qiu,Jin Wang,Cong Chen,Lei Meng,Xiao-Zhen Gao,Yu Zhang,Zijian Huang,Rundong Fan,Huifen Liu,Yanrun Chen,Xiaoxue Ren,Jiahong Tang,Chun-Hao Chen,Dong Yang,Yongguang Tu,Xiao Liu,Don Liu,Qing Zhao,Jingbi You,Junfeng Fang,Yongzhen Wu,Hongwei Han,Xiaodan Zhang,Degang Zhao,Fuzhi Huang,Huanping Zhou,Yongbo Yuan,Qi Chen,Zhao-Kui Wang,Shengzhong Frank Liu,Rui Zhu,Jotaro Nakazaki,Yongfang Li,Lihua Han +39 more
Journal ArticleDOI
Grain Regrowth and Bifacial Passivation for High‐Efficiency Wide‐Bandgap Perovskite Solar Cells
Zhou Yang Liu,Changhuai Zhu,Haowen Luo,Wenchi Kong,Xin Luo,Jinlong Wu,Changzeng Ding,Yiyao Chen,Yurui Wang,Jin Wen,Yuan Gao,Hairen Tan +11 more
TL;DR: In this article , a posttreatment of perovskite films with a mixture of methylammonium thiocyanate (MASCN) and phenethylammium iodide (PEAI) was proposed to reduce recombination losses at the grain boundaries and perovsite/charge transport layer interfaces simultaneously.
Journal ArticleDOI
Π-Expanded Carbazoles as Hole-Selective Self-Assembled Monolayers for High-Performance Perovskite Solar Cells.
TL;DR: In this paper , the authors designed two carbazole-derived self-assembled monolayers (SAMs) for inverted perovskite solar cells (PSCs) through asymmetric or helical π-expansion for improved molecular dipole moment and strengthened p-p interaction.
Journal ArticleDOI
Evaporated Self‐Assembled Monolayer Hole Transport Layers: Lossless Interfaces in p‐i‐n Perovskite Solar Cells
Ahmed Farag,Thomas P. Feeney,Ihteaz M. Hossain,Fabian Schackmar,Paul Fassl,K Küster,Rainer Bäuerle,Marco A. Ruiz‐Preciado,Mario Hentschel,David Ritzer,Alexander Diercks,Yang Li,Bahram Abdollahi Nejand,Felix Laufer,Roja Singh,Ulrich Starke,Ulrich W. Paetzold +16 more
TL;DR: In this article , vacuum-based evaporation of the most common carbazole-based self-assembled monolayers (SAM•HTLs) is reported. And the results show that the near lossless interfacial properties are either preserved or even slightly improved as demonstrated via photoluminescence measurements and an enhancement in opencircuit voltage.
References
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Journal ArticleDOI
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Journal ArticleDOI
Reversible photo-induced trap formation in mixed-halide hybrid perovskites for photovoltaics
Eric T. Hoke,Daniel J. Slotcavage,Emma R. Dohner,Andrea R. Bowring,Hemamala I. Karunadasa,Michael D. McGehee +5 more
TL;DR: A reversible photo-induced instability has been found in mixed-halide photovoltaic perovskites that limits the open circuit voltage in solar cells.
Journal ArticleDOI
Modelling polycrystalline semiconductor solar cells
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