Integrated photoelectrochemical energy storage cells prepared by benchtop ion soft landing

Venkateshkumar Prabhakaran; Joelle Romo; Ashish Bhattarai; Kyle George; Zachary M. Norberg; David Kalb; Edoardo Aprà; Peter A. Kottke; Andrei G. Fedorov; Patrick Z. El-Khoury; Grant E. Johnson; Julia Laskin

doi:10.1039/D2CC02595G

Integrated photoelectrochemical energy storage cells prepared by benchtop ion soft landing†

Venkateshkumar Prabhakaran,

*^a Joelle Romo,^a Ashish Bhattarai,^a Kyle George,^a Zachary M. Norberg,^a David Kalb,^a Edoardo Aprà,

^b Peter A. Kottke,^c Andrei G. Fedorov,

^c Patrick Z. El-Khoury,

^a Grant E. Johnson

*^a and Julia Laskin

*^d

Author affiliations

* Corresponding authors

^a Physical Sciences Division, Pacific Northwest National Laboratory, Richland, WA, USA
E-mail: venky@pnnl.gov, Grant.Johnson@pnnl.gov

^b Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, WA, USA

^c School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA, USA

^d Department of Chemistry, Purdue University, West Lafayette, IN, USA
E-mail: jlaskin@purdue.edu

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.

Chemical Communications

Integrated photoelectrochemical energy storage cells prepared by benchtop ion soft landing†

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