期刊
JOURNAL OF MATERIALS CHEMISTRY A
卷 8, 期 17, 页码 8496-8502出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/d0ta02069a
关键词
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资金
- National Research Foundation (NRF), Republic of Korea [NRF-2015R1A3A2066191, NRF-2019H1A2A1075810]
- National Research Foundation of Korea [2019H1A2A1075810] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
A robust photovoltaic (PV) is essential for long-term redox biotransformations in biocatalytic photoelectrochemical (PEC) platforms. Here, we report a single Cu(In,Ga)Se-2 (CIGS) solar cell for unbiased photobiocatalytic reduction reactions. The photoanode/CIGS/cathode tandem assembly drives cofactor-dependent biocatalytic CO2 reduction under visible light. Our scalable PEC-PV tandem device achieves the longest reaction time of 72 h and the highest ever recorded turnover frequency and total turnover number of the cofactor of 0.236 h(-1) and 11.2, respectively, for biocatalytic PEC production of formate through cofactor regeneration. This benchmark performance is attributed to the excellent PEC stability of the CIGS component; the substitution of CIGS with a perovskite solar cell (PSC) results in unstable generation of photocurrent and a lower concentration of formate under high-humidity environments because of the water-induced degradation of PSC. This work demonstrates the propriety of CIGS in robust PEC-PV tandems for artificial photosynthesis.
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