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A novel high gain extendable dc-dc bidirectional boost-buck converter

Hosseini H., S. M ; Sharif University of Technology | 2020

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  1. Type of Document: Article
  2. DOI: 10.1149/09707.0845ecst
  3. Publisher: Institute of Physics Publishing , 2020
  4. Abstract:
  5. In-situ deposition of cupric oxide (CuO) thin films on fluorine-doped tin oxide is performed through a rapid microwave-assisted method. The duration of microwave (MW) irradiation is optimized in order to prepare efficient and stable photocathodes for photoelectrochemical (PEC) water splitting. We obtain CuO with a unique morphology consisted of intermingled nanosheets. We evaluate PEC performance of the photocathodes through Linear Sweep Voltammetry (LSV) and current stability analyses. The highest achieved photocurrent density is -1.15 mA.cm-2 at 0 V vs. RHE for the sample MW-irradiated for 60 min. This value is comparable or superior to several other CuO-based photocathodes prepared by other chemical-based techniques. The improved properties is attributed to relatively high specific surface area, enhanced capability for light absorption on the photocathode surfaces, and more efficient transfer and/or separation of charge carriers. Hence, it offers our simple method as a promising technique for the preparation of low-cost, photostable photocathodes. © 2020 ECS - The Electrochemical Society
  6. Keywords:
  7. Carrier mobility ; Chemical sensors ; Deposition ; Field emission cathodes ; Film preparation ; Indium compounds ; Light absorption ; Microwave irradiation ; Morphology ; Nanocomposites ; Oxide films ; Photocathodes ; Photoelectrochemical cells ; Tin oxides ; Fluorine doped tin oxide ; High specific surface area ; Linear sweep voltammetry ; Microwave-assisted methods ; Photocathode surfaces ; Photocurrent density ; Photoelectrochemical water splitting ; Photoelectrochemicals ; Copper oxides
  8. Source: 237th ECS Meeting with the 18th International Meeting on Chemical Sensors, IMCS 2020, 10 May 2020 through 14 May 2020 ; Volume 97, Issue 7 , 2020 , Pages 845-856
  9. URL: https://iopscience.iop.org/article/10.1149/MA2020-01512816mtgabs