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Title: Giant switchable photovoltaic effect in organometal trihalide perovskite devices

Journal Article · · Nature Materials
DOI:https://doi.org/10.1038/nmat4150· OSTI ID:1238052

Organolead trihalide perovskite (OTP) materials are emerging as naturally abundant materials for low-cost, solution-processed and highly efficient solar cells. Here, we show that, in OTP-based photovoltaic devices with vertical and lateral cell configurations, the photocurrent direction can be switched repeatedly by applying a small electric field of <1 V μm–1. The switchable photocurrent, generally observed in devices based on ferroelectric materials, reached 20.1 mA cm–2 under one sun illumination in OTP devices with a vertical architecture, which is four orders of magnitude larger than that measured in other ferroelectric photovoltaic devices. This field-switchable photovoltaic effect can be explained by the formation of reversible p–i–n structures induced by ion drift in the perovskite layer. Furthermore, the demonstration of switchable OTP photovoltaics and electric-field-manipulated doping paves the way for innovative solar cell designs and for the exploitation of OTP materials in electrically and optically readable memristors and circuits.

Research Organization:
Univ. of Nebraska, Lincoln, NE (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
EE0006709
OSTI ID:
1238052
Journal Information:
Nature Materials, Vol. 14, Issue 2; ISSN 1476-1122
Publisher:
Springer Nature - Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English

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In Situ Interface Engineering of TiO 2 Nanocrystals for Fully Ambient-Processed Perovskite Solar Cells journal July 2018
Evidence for ion migration in hybrid perovskite solar cells with minimal hysteresis journal December 2016
Highly narrowband perovskite single-crystal photodetectors enabled by surface-charge recombination journal August 2015
Efficient perovskite light-emitting diodes featuring nanometre-sized crystallites journal January 2017
Sensitive X-ray detectors made of methylammonium lead tribromide perovskite single crystals journal March 2016
Giant Zero-Drift Electronic Behaviors in Methylammonium Lead Halide Perovskite Diodes by Doping Iodine Ions journal September 2018
Wafer-scale growth of large arrays of perovskite microplate crystals for functional electronics and optoelectronics text January 2015
Communicating Two States in Perovskite Revealed by Time-Resolved Photoluminescence Spectroscopy preprint January 2018
Modeling Thin Film Solar Cells: From Organic to Perovskite journal November 2019
What Is Moving in Hybrid Halide Perovskite Solar Cells? journal February 2016
Degradation of Methylammonium Lead Iodide Perovskite Structures through Light and Electron Beam Driven Ion Migration journal January 2016
Thermodynamic Origin of Photoinstability in the CH 3 NH 3 Pb(I 1– x Br x ) 3 Hybrid Halide Perovskite Alloy journal March 2016
Photoluminescence Blinking of Single-Crystal Methylammonium Lead Iodide Perovskite Nanorods Induced by Surface Traps journal July 2016
Effect of Cs-Incorporated NiOx on the Performance of Perovskite Solar Cells journal December 2017
Effect of Ion Migration-Induced Electrode Degradation on the Operational Stability of Perovskite Solar Cells journal August 2018
Solid-State Ionics of Hybrid Halide Perovskites journal April 2019
Carrier separation and transport in perovskite solar cells studied by nanometre-scale profiling of electrical potential journal September 2015
Management of transition dipoles in organic hole-transporting materials under solar irradiation for perovskite solar cells journal October 2018
Application of ferroelectric materials for improving output power of energy harvesters. journalarticle January 2018
Fast Anion-Exchange in Highly Luminescent Nanocrystals of Cesium Lead Halide Perovskites (CsPbX3, X = Cl, Br, I) text January 2015
Ambipolar Solution-processed Hybrid Perovskite Phototransistors text January 2015
Evidence for ion migration in hybrid perovskite solar cells with minimal hysteresis text January 2016
Dipole-field-assisted charge extraction in metal-perovskite-metal back-contact solar cells text January 2017

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