Microseconds, milliseconds and seconds: deconvoluting the dynamic behaviour of planar perovskite solar cells

被引：207
作者：
Pockett, Adam [1 ]
Eperon, Giles E. [2 ,3 ]
Sakai, Nobuya [2 ]
Snaith, Henry J. [2 ]
Peter, Laurence M. [1 ]
Cameron, Petra J. [1 ]
机构：
[1] Univ Bath, Dept Chem, Bath BA2 7AY, Avon, England
[2] Univ Oxford, Dept Phys, Clarendon Lab, Oxford OX1 3PU, England
[3] Univ Washington, Dept Chem, Seattle, WA 98195 USA
来源：
PHYSICAL CHEMISTRY CHEMICAL PHYSICS | 2017年 / 19卷 / 08期
基金：
英国工程与自然科学研究理事会;
关键词：
LEAD IODIDE; IMPEDANCE SPECTROSCOPY; CHARGE-TRANSPORT; V HYSTERESIS; CH3NH3PBI3; MECHANISM; ACCUMULATION; POLARIZATION; PHOTOVOLTAGE; DEGRADATION;
D O I：
10.1039/c6cp08424a
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Perovskite solar cells (PSC) are shown to behave as coupled ionic-electronic conductors with strong evidence that the ionic environment moderates both the rate of electron-hole recombination and the band offsets in planar PSC. Numerous models have been presented to explain the behaviour of perovskite solar cells, but to date no single model has emerged that can explain both the frequency and time dependent response of the devices. Here we present a straightforward coupled ionic-electronic model that can be used to explain the large amplitude transient behaviour and the impedance response of PSC.
引用
收藏
页码：5959 / 5970
页数：12
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