8
IRUS TotalDownloads
Ionic-to-electronic current amplification in hybrid perovskite solar cells: ionically gated transistor-interface circuit model explains hysteresis and impedance of mixed conducting devices
File | Description | Size | Format | |
---|---|---|---|---|
![]() | Supporting information | 2.74 MB | Adobe PDF | View/Open |
![]() | Accepted version | 1.52 MB | Microsoft Word | View/Open |
Title: | Ionic-to-electronic current amplification in hybrid perovskite solar cells: ionically gated transistor-interface circuit model explains hysteresis and impedance of mixed conducting devices |
Authors: | Moia, D Gelmetti, I Calado, P Fisher, W Stringer, M Game, O Hu, Y Docampo, P Lidzey, D Palomares, E Nelson, J Barnes, PRF |
Item Type: | Journal Article |
Abstract: | Mobile ions in hybrid perovskite semiconductors introduce a new degree of freedom to electronic devices suggesting applications beyond photovoltaics. An intuitive device model describing the interplay between ionic and electronic charge transfer is needed to unlock the full potential of the technology. We describe the perovskite-contact interfaces as transistors which couple ionic charge redistribution to energetic barriers controlling electronic injection and recombination. This reveals an amplification factor between the out of phase electronic current and the ionic current. Our findings suggest a strategy to design thin film electronic components with large, tuneable, capacitor-like and inductor-like characteristics. The resulting simple equivalent circuit model, which we verified with time-dependent drift-diffusion simulations of measured impedance spectra, allows a general description and interpretation of perovskite solar cell behaviour. |
Issue Date: | 1-Apr-2019 |
Date of Acceptance: | 5-Mar-2019 |
URI: | http://hdl.handle.net/10044/1/74103 |
DOI: | https://dx.doi.org/10.1039/c8ee02362j |
ISSN: | 1754-5692 |
Publisher: | Royal Society of Chemistry |
Start Page: | 1296 |
End Page: | 1308 |
Journal / Book Title: | Energy and Environmental Science |
Volume: | 12 |
Issue: | 4 |
Copyright Statement: | ©The Royal Society of Chemistry 2019. |
Sponsor/Funder: | Engineering & Physical Science Research Council (EPSRC) Engineering & Physical Science Research Council (E Engineering & Physical Science Research Council (EPSRC) Engineering & Physical Science Research Council (E |
Funder's Grant Number: | EP/J002305/1 EP/R511547/1 EP/R020574/1 PO 500215639 |
Keywords: | Science & Technology Physical Sciences Technology Life Sciences & Biomedicine Chemistry, Multidisciplinary Energy & Fuels Engineering, Chemical Environmental Sciences Chemistry Engineering Environmental Sciences & Ecology ORGANOMETAL TRIHALIDE PEROVSKITE THIN-FILM RECOMBINATION POLARIZATION EFFICIENCY MIGRATION LENGTHS ORIGIN Science & Technology Physical Sciences Technology Life Sciences & Biomedicine Chemistry, Multidisciplinary Energy & Fuels Engineering, Chemical Environmental Sciences Chemistry Engineering Environmental Sciences & Ecology ORGANOMETAL TRIHALIDE PEROVSKITE THIN-FILM RECOMBINATION POLARIZATION EFFICIENCY MIGRATION LENGTHS ORIGIN physics.app-ph physics.app-ph cond-mat.mtrl-sci Energy |
Publication Status: | Published |
Online Publication Date: | 2019-03-06 |
Appears in Collections: | Physics Experimental Solid State Faculty of Natural Sciences |