Journal ArticleDOI
Molecular Interaction Regulates the Performance and Longevity of Defect Passivation for Metal Halide Perovskite Solar Cells
Yepin Zhao,Pengchen Zhu,Shu Huang,Shaun Tan,Minhuan Wang,Rui Wang,Jingjing Xue,Tae Hee Han,Sung-Joon Lee,Anni Zhang,Tianyi Huang,Pei Cheng,Dong Meng,Jin-Wook Lee,Jaime Marian,Jia Zhu,Yang Yang +16 more
TLDR
It is unraveled that the passivation agents with a stronger interaction energy are advantageous not only for effective defect passivation but also to suppress defect migration.Abstract:
Defect passivation constitutes one of the most commonly used strategies to fabricate highly efficient perovskite solar cells (PSCs). However, the durability of the passivation effects under harsh operational conditions has not been extensively studied regardless of the weak and vulnerable secondary bonding between the molecular passivation agents and perovskite crystals. Here, we incorporated strategically designed passivating agents to investigate the effect of their interaction energies on the perovskite crystals and correlated these with the performance and longevity of the passivation effects. We unraveled that the passivation agents with a stronger interaction energy are advantageous not only for effective defect passivation but also to suppress defect migration. The prototypical PSCs treated with the optimal passivation agent exhibited superior performance and operational stability, retaining 81.9 and 85.3% of their initial performance under continuous illumination or nitrogen at 85 °C after 1008 h, respectively, while the reference device completely degraded during that time. This work provides important insights into designing operationally durable defect passivation agents for perovskite optoelectronic devices.read more
Citations
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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.
Journal ArticleDOI
Chlorobenzenesulfonic Potassium Salts as the Efficient Multifunctional Passivator for the Buried Interface in Regular Perovskite Solar Cells
Yao Dong,Wen-Zen Shen,Wei Dong,Cong Bai,Juan Zhao,Yecheng Zhou,Fuzhi Huang,Yi-Bing Cheng,Jie Zhong +8 more
TL;DR: In this paper , chlorobenzenesulfonic potassium (3Cl−BSAK) is used to modify the buried tin oxide (SnO2)/perovskite interface for regular PSCs.
Journal ArticleDOI
Perovskitoid-Templated Formation of a 1D@3D Perovskite Structure toward Highly Efficient and Stable Perovskite Solar Cells
Tengfei Kong,Haibing Xie,Yang Zhang,Jing Song,Yahong Li,Eng Liang Lim,Anders Hagfeldt,Dongqin Bi +7 more
Journal ArticleDOI
Passivating buried interface via self-assembled novel sulfonium salt toward stable and efficient perovskite solar cells
Xin Zuo,Jiangzhao Chen,Xin Zuo,Bohyung Kim,Maria Garrido,Ashanthi S. Maxworth,Baibai Liu,Dongmei He,Le Bai,Wenqi Wang,Cunyun Xu,Qunliang Song,Chunyang Jia,Zhigang Zang,Donghwa Lee,Xiong Li,Jiangzhao Chen +16 more
TL;DR: In this article, a simple and effective buried interface passivation strategy based on cation engineering through employing a new type of sulfonium salt ((2-carboxyethyl) dimethyl sulfonoium chloride, CDSC) together with reference molecule (3-dimethylamino propionic acid hydrochloride, DPAH) to modify the interface between perovskite and electron transport layers.
Journal ArticleDOI
Passivating buried interface via self-assembled novel sulfonium salt toward stable and efficient perovskite solar cells
TL;DR: In this article , a simple and effective buried interface passivation strategy based on cation engineering through employing a new type of sulfonium salt ((2-carboxyethyl) dimethyl sulfonoium chloride, CDSC) together with reference molecule (3-dimethylamino propionic acid hydrochloride, DPAH) to modify the interface between perovskite and electron transport layers.
References
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Journal ArticleDOI
Efficient Hybrid Solar Cells Based on Meso-Superstructured Organometal Halide Perovskites
Michael M. Lee,Joël Teuscher,Tsutomu Miyasaka,Takurou N. Murakami,Takurou N. Murakami,Henry J. Snaith +5 more
TL;DR: A low-cost, solution-processable solar cell, based on a highly crystalline perovskite absorber with intense visible to near-infrared absorptivity, that has a power conversion efficiency of 10.9% in a single-junction device under simulated full sunlight is reported.
Journal ArticleDOI
Electron-hole diffusion lengths exceeding 1 micrometer in an organometal trihalide perovskite absorber.
Samuel D. Stranks,Giles E. Eperon,Giulia Grancini,Christopher Menelaou,Marcelo J. P. Alcocer,Tomas Leijtens,Laura M. Herz,Annamaria Petrozza,Henry J. Snaith +8 more
TL;DR: In this article, transient absorption and photoluminescence-quenching measurements were performed to determine the electron-hole diffusion lengths, diffusion constants, and lifetimes in mixed halide and triiodide perovskite absorbers.
Journal Article
Electron-Hole Diffusion Lengths Exceeding 1 Micrometer in an Organometal Trihalide Perovskite Absorber
Samuel D. Stranks,Giles E. Eperon,Giulia Grancini,Christopher Menelaou,Marcelo J. P. Alcocer,Tomas Leijtens,Laura M. Herz,Annamaria Petrozza,Henry J. Snaith +8 more
TL;DR: In this paper, transient absorption and photoluminescence-quenching measurements were performed to determine the electron-hole diffusion lengths, diffusion constants, and lifetimes in mixed halide and triiodide perovskite absorbers.
Journal ArticleDOI
Long-Range Balanced Electron- and Hole-Transport Lengths in Organic-Inorganic CH3NH3PbI3
Guichuan Xing,Nripan Mathews,Shuangyong Sun,Swee Sien Lim,Yeng Ming Lam,Michael Grätzel,Michael Grätzel,Subodh Mhaisalkar,Tze Chien Sum +8 more
TL;DR: Two studies show, using a variety of time-resolved absorption and emission spectroscopic techniques, that perovskite materials manifest relatively long diffusion paths for charge carriers energized by light absorption, highlighting effective carrier diffusion as a fruitful parameter for further optimization.
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.