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Integrated photoelectrochemical energy storage cells prepared by benchtop ion soft landing
Venkateshkumar Prabhakaran1, Joelle Romo1, Ashish Bhattarai1
1Physical Sciences Division, Pacific Northwest National Laboratory, Richland, WA, 99352, USA. venky@pnnl.gov.
Abstract:
The exceptional photochromic and redox properties of polyoxometalate anions, PW12O403-, have been exploited to develop an integrated photoelectrochemical energy storage cell for conversion and storage of solar energy. Elimination of strongly coordinating cations using benchtop ion soft landing leads to a ∼370% increase in the maximum power output of the device. Additionally, the photocathode displayed a pronounced color change from clear to blue upon irradiation, which warrants the potential application of the IPES cell in advanced smart windows and photochromic lenses.
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