Journal
CHEMICAL COMMUNICATIONS
Volume 57, Issue 40, Pages 4910-4913Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/d1cc01240a
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Funding
- National Natural Science Foundation of China [52073200]
- Science Funds of Tianjin for Distinguished Young Scholars [17JCJQJC44800]
- Key Research and Development Plan of Tianjin [19YFSLQY00020]
- Innovation Ability Improvement Project of Hebei Province [20543601D]
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This study investigated the photoelectrochemical performance of ternary sulfide photoelectrodes with the same nanostructure and applied bidirectional p-n heterojunctions. The use of ZnIn2S4/CuInS2 and CuInS2/ZnIn2S4 as photoanode and photocathode in the unassisted tandem PEC cell device achieved a relatively high photocurrent density of 0.06 mA cm(-2), providing new ideas for the design and manufacture of high-efficiency unassisted tandem PEC cell devices.
There has been great demand for high-efficiency, low-cost, and abundant photoelectrode materials for photoelectrochemical (PEC) systems. Here, we studied the PEC performance of ternary sulfide photoelectrodes (ZnIn2S4 and CuInS2) with the same nanostructure and applied bidirectional p-n heterojunctions with energy levels that were well matched to the unassisted tandem PEC cell device. Moreover, ZnIn2S4/CuInS2 and CuInS2/ZnIn2S4 were used as a photoanode and photocathode, respectively, in the unassisted tandem PEC cell device, which achieved a relatively high photocurrent density of 0.06 mA cm(-2). This work provides new ideas for the design and manufacture of high-efficiency unassisted tandem PEC cell devices.
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