Ionic polarization-induced current-voltage hysteresis in CH3NH3PbX3 perovskite solar cells
Simone Meloni,Thomas Moehl,Wolfgang Tress,Marius Franckevičius,Michael Saliba,Yong Hui Lee,Peng Gao,Mohammad Khaja Nazeeruddin,Shaik M. Zakeeruddin,Ursula Rothlisberger,Michael Graetzel +10 more
Reads0
Chats0
TLDR
The computationally determined activation energies for halide ion (vacancy) migration are in excellent agreement with the experimentally determined values, suggesting that the migration of this species causes the observed hysteretic behaviour of these solar cells.Abstract:
CH3NH3PbX3 (MAPbX3) perovskites have attracted considerable attention as absorber materials for solar light harvesting, reaching solar to power conversion efficiencies above 20%. In spite of the rapid evolution of the efficiencies, the understanding of basic properties of these semiconductors is still ongoing. One phenomenon with so far unclear origin is the so-called hysteresis in the current-voltage characteristics of these solar cells. Here we investigate the origin of this phenomenon with a combined experimental and computational approach. Experimentally the activation energy for the hysteretic process is determined and compared with the computational results. First-principles simulations show that the timescale for MA(+) rotation excludes a MA-related ferroelectric effect as possible origin for the observed hysteresis. On the other hand, the computationally determined activation energies for halide ion (vacancy) migration are in excellent agreement with the experimentally determined values, suggesting that the migration of this species causes the observed hysteretic behaviour of these solar cells.read more
Citations
More filters
Journal ArticleDOI
A vacuum flash-assisted solution process for high-efficiency large-area perovskite solar cells.
Xiong Li,Dongqin Bi,Chenyi Yi,Jean-David Decoppet,Jingshan Luo,Shaik M. Zakeeruddin,Anders Hagfeldt,Michael Grätzel +7 more
TL;DR: A simple vacuum flash–assisted solution processing method is devised to obtain shiny, smooth, crystalline perovskite films of high electronic quality over large areas, which enables the realization of highly efficient large-area PSCs for practical deployment.
Journal ArticleDOI
Mutual Insight on Ferroelectrics and Hybrid Halide Perovskites: A Platform for Future Multifunctional Energy Conversion.
Richa Pandey,Gaurav Vats,Jae Yun,Christopher R. Bowen,Anita Ho-Baillie,Jan Seidel,Keith T. Butler,Sang Il Seok +7 more
TL;DR: An insight into the analogies, state-of-the-art technologies, concepts, and prospects under the umbrella of perovskite materials (both inorganic-organic hybrid halideperovskites and ferroelectric perovkites) for future multifunctional energy conversion and storage devices is provided.
Journal ArticleDOI
Mesoporous materials for energy conversion and storage devices
Wei Li,Jun Liu,Dongyuan Zhao +2 more
TL;DR: A review of mesoporous materials can be found in this paper, where the authors summarize the primary methods for preparing mesopore materials and discuss their applications as electrodes and/or catalysts in solar cells, solar fuel production, rechargeable batteries, supercapacitors and fuel cells.
Journal ArticleDOI
The rapid evolution of highly efficient perovskite solar cells
Juan-Pablo Correa-Baena,Antonio Abate,Michael Saliba,Wolfgang Tress,T. Jesper Jacobsson,Michael Grätzel,Anders Hagfeldt +6 more
TL;DR: The perovskite solar cells (PSCs) have attracted much attention because of their rapid rise to 22% efficiencies as discussed by the authors, which could revolutionize the photovoltaic industry.
Journal ArticleDOI
Cs 2 AgBiBr 6 single-crystal X-ray detectors with a low detection limit
Weicheng Pan,Haodi Wu,Jiajun Luo,Zhenzhou Deng,Zhenzhou Deng,Cong Ge,Chao Chen,Xiaowei Jiang,Wan-Jian Yin,Guangda Niu,Lujun Zhu,Lixiao Yin,Ying Zhou,Qingguo Xie,Xiaoxing Ke,Manling Sui,Jiang Tang +16 more
TL;DR: In this article, a solution-processed double perovskite Cs2AgBiBr6 single crystals are used to make a sensitive X-ray detector with a minimum detectable dose rate as low as 59.7 nGyair's−1.
References
More filters
Journal ArticleDOI
Organometal Halide Perovskites as Visible-Light Sensitizers for Photovoltaic Cells
TL;DR: Two organolead halide perovskite nanocrystals were found to efficiently sensitize TiO(2) for visible-light conversion in photoelectrochemical cells, which exhibit strong band-gap absorptions as semiconductors.
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
Sequential deposition as a route to high-performance perovskite-sensitized solar cells
Julian Burschka,Norman Pellet,Norman Pellet,Soo-Jin Moon,Robin Humphry-Baker,Peng Gao,Mohammad Khaja Nazeeruddin,Michael Grätzel +7 more
TL;DR: A sequential deposition method for the formation of the perovskite pigment within the porous metal oxide film that greatly increases the reproducibility of their performance and allows the fabrication of solid-state mesoscopic solar cells with unprecedented power conversion efficiencies and high stability.
Journal ArticleDOI
Lead Iodide Perovskite Sensitized All-Solid-State Submicron Thin Film Mesoscopic Solar Cell with Efficiency Exceeding 9%
Hui-Seon Kim,Chang-Ryul Lee,Jeong-Hyeok Im,Ki Beom Lee,Thomas Moehl,Arianna Marchioro,Soo-Jin Moon,Robin Humphry-Baker,Jun-Ho Yum,Jacques-E. Moser,Michael Grätzel,Nam-Gyu Park +11 more
TL;DR: The use of a solid hole conductor dramatically improved the device stability compared to (CH3NH3)PbI3 -sensitized liquid junction cells.
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.