Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 9, Issue 27, Pages 22361-22368Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsami.7b01471
Keywords
perovskite solar cell; carbon electrode; supercapacitor; power pack; integration
Funding
- National Natural Science Foundation of China [51175210, 51675210]
- Program for Changjiang Scholars and Innovative Research Team in University [IRT17R44]
- China Postdoctoral Science Foundation [2016M602283]
- Graduates' Innovation Fund in University [2015650011]
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Power packs integrating both photovoltaic parts and energy storage parts have gained great scientific and technological attention due to the increasing demand for green energy and the tendency for miniaturization and multi-functionalization in electronics industry. In this study, we demonstrate novel integration of perovskite solar cell and solid-state supercapacitor for power packs. The perovskite solar cell is integrated with the supercapacitor based on common carbon electrodes to hybridize photoelectric conversion and energy storage. The power pack achieves a voltage of 0.84 V when the supercapacitot is charged by the perovskite solar cell under the AM 1.5G white light illumination with a 0.071 cm(2) active area, reaching an energy storage proportion of 76% and an overall conversion efficiency of 5.26%. When the supercapacitor is precharged at 1.0 V, an instant overall output efficiency of 22.9% can be achieved if the perovskite solar cell and supercapacitor are connected in series, exhibiting great potential in the applications of solar energy storage and flexible electronics such as portable and wearable devices.
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