Wireless Solar Water Splitting Device with Robust Cobalt-Catalyzed, Dual-Doped BiVO4 Photoanode and Perovskite Solar Cell in Tandem: A Dual Absorber Artificial Leaf
SCIE
SCOPUS
- Title
- Wireless Solar Water Splitting Device with Robust Cobalt-Catalyzed, Dual-Doped BiVO4 Photoanode and Perovskite Solar Cell in Tandem: A Dual Absorber Artificial Leaf
- Authors
- Kim, JH; Jo, Y; Kim, JH; Jang, JW; Kang, HJ; Lee, YH; Kim, DS; Jun, Y; Lee, JS
- Date Issued
- 2015-11
- Publisher
- AMER CHEMICAL SOC
- Abstract
- A stand-alone, wireless solar water splitting device without external energy supply has been realized by combining in tandem a CH(3)NH(3)Pbl(3) perovskite single junction solar cell with a cobalt carbonate (Co-Ci)-catalyzed, extrinsic/intrinsic dual-doped BiVO4 (hydrogen-treated and 3 at% Mo-doped). The photoanode recorded one of the highest photoelectrochemical water oxidation activity (4.8 mA/cm(2) at 1.23 V-RHE) under simulated 1 sun illumination. The oxygen evolution Co-Ci co-catalyst showed similar performance to best known cobalt phosphate (Co-Pi) (5.0 mA/cm(2) at 1.23 VRHE) on the same dual-doped BiVO4 photoanode, but with significantly better stability. A tandem artificial-leaf-type device produced stoichiometric hydrogen and oxygen with an average solar-to-hydrogen efficiency of 4.3% (wired), 3.0% (wireless) under simulated 1 sun illumination. Hence, our device based on a D4 tandem photoelectrochemical cell represents a meaningful advancement in performance and cost over the device based on a triple-junction solar cell-electrocatalyst combination.
- Keywords
- BISMUTH VANADATE PHOTOANODES; EARTH-ABUNDANT CATALYSTS; OXYGEN EVOLUTION; VISIBLE-LIGHT; HYDROGEN-PRODUCTION; CHARGE SEPARATION; MONOCLINIC BIVO4; CURRENT STATE; IN-SITU; OXIDATION
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/92356
- DOI
- 10.1021/acsnano.5b03859
- ISSN
- 1936-0851
- Article Type
- Article
- Citation
- ACS NANO, vol. 9, no. 12, page. 11820 - 11829, 2015-11
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- There are no files associated with this item.
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