Academic Journal
Triple layered Ga2O3/Cu2O/Au photoanodes with enhanced photoactivity and stability prepared using iron nickel oxide catalysts
| العنوان: | Triple layered Ga2O3/Cu2O/Au photoanodes with enhanced photoactivity and stability prepared using iron nickel oxide catalysts |
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| المؤلفون: | Kim, Hee Jun, Lee, Tae Won, Kim, Hye Hyun, Yang, U. Jeong, Kim, Chan Ul, Choi, Kyoung Jin, Lee, Heon, Baik, Jeong Min |
| بيانات النشر: | ROYAL SOC CHEMISTRY |
| سنة النشر: | 2020 |
| المجموعة: | ScholarWorks@UNIST (Ulsan National Institute of Science and Technology) |
| الوصف: | In this study, the photoelectrochemical performance of Cu2O-based photoanodes is evaluated in terms of photoactivity and stability. The electrodes are based on the p-n junction consisting of Cu2O/Ga2O3, on which an Au layer is deposited, followed by the formation of Ni-based co-catalysts. The Au layer increases the light absorption in the entire wavelength range from 300 to 800 nm and leads to upward band bending at the Cu2O/Au interface; thus, more photogenerated hole charges are transported to the electrolytes. The electrodeposited FeNiOx thin layer significantly decreases the overpotential and increases the photoactivity; thus, the photoelectrochemical cell consisting of the Cu2O-based photoanode and platinum yields a photocurrent density of about 5.15 mA cm(-2) at 1.23 V vs. RHE with a small dark current density of 16 mu A cm(-2). |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | unknown |
| تدمد: | 2050-7488 |
| Relation: | JOURNAL OF MATERIALS CHEMISTRY A, v.8, no.21, pp.10966 - 10972; https://scholarworks.unist.ac.kr/handle/201301/32996; 35831; 2-s2.0-85085945631; 000538143000033; https://pubs.rsc.org/en/content/articlelanding/2020/TA/D0TA00179A#!divAbstract |
| DOI: | 10.1039/d0ta00179a |
| الاتاحة: | https://scholarworks.unist.ac.kr/handle/201301/32996 https://doi.org/10.1039/d0ta00179a https://pubs.rsc.org/en/content/articlelanding/2020/TA/D0TA00179A#!divAbstract |
| رقم الانضمام: | edsbas.A77468AD |
| قاعدة البيانات: | BASE |
| تدمد: | 20507488 |
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| DOI: | 10.1039/d0ta00179a |