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Download filePerovskite Photovoltachromic Supercapacitor with All-Transparent Electrodes
journal contribution
posted on 2016-05-09, 00:00 authored by Feichi Zhou, Zhiwei Ren, Yuda Zhao, Xinpeng Shen, Aiwu Wang, Yang Yang Li, Charles Surya, Yang ChaiPhotovoltachromic
cells (PVCCs) are of great interest for the self-powered
smart windows of architectures and vehicles, which require widely
tunable transmittance and automatic color change under photostimuli.
Organolead halide perovskite possesses high light absorption coefficient
and enables thin and semitransparent photovoltaic device. In this
work, we demonstrate co-anode and co-cathode photovoltachromic supercapacitors
(PVCSs) by vertically integrating a perovskite solar cell (PSC) with
MoO3/Au/MoO3 transparent electrode and electrochromic
supercapacitor. The PVCSs provide a seamless integration of energy
harvesting/storage device, automatic and wide color tunability, and
enhanced photostability of PSCs. Compared with conventional PVCC,
the counter electrodes of our PVCSs provide sufficient balancing charge,
eliminate the necessity of reverse bias voltage for bleaching the
device, and realize reasonable in situ energy storage.
The color states of PVCSs not only indicate the amount of energy stored
and energy consumed in real time, but also enhance the photostability
of photovoltaic component by preventing its long-time photoexposure
under fully charged state of PVCSs. This work designs PVCS devices
for multifunctional smart window applications commonly made of glass.
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PVCCbias voltageelectrochromic supercapacitorsemitransparent photovoltaic deviceenergy storagetunable transmittancecounter electrodeswork designs PVCS devicesphotovoltaic componentPerovskite Photovoltachromic Supercapacitorbalancing chargewindow applicationscolor statescolor tunabilityOrganolead halide perovskitecolor changelight absorption coefficientPSC