Journal ArticleDOI
Improved Photoelectrochemical Water Splitting Performance of Cu2O/SrTiO3 Heterojunction Photoelectrode
Dipika Sharma,Sumant Upadhyay,Vibha R. Satsangi,Rohit Shrivastav,Umesh V. Waghmare,Sahab Dass +5 more
TLDR
In this article, the influence of surface modification of Cu2O with varying thickness of SrTiO3 on photoelectrochemical (PEC) water splitting was investigated, and it was shown that the electrons in the modified thin films had large effective masses.Abstract:
Nanostructured thin films of Cu2O modified by overlayering SrTiO3 with varying thickness have been studied for the first time as photoelectrode in photoelectrochemical (PEC) water splitting. Effective mass calculations for electrons and holes in bulk SrTiO3 and Cu2O using DFT first-principles have also been attempted to explain the enhanced charge separation at Cu2O/SrTiO3 interface. All samples were characterized using XRD, SEM, and UV–vis spectrometry. The influence of surface modification of Cu2O with varying thickness of SrTiO3 on PEC performance has been investigated. Photocurrent density for Cu2O/SrTiO3 heterojunction with overall thickness of 343 nm at 0.8 V/SCE was found to be 2.52 mA cm–2 which is 25 times higher than that of pristine Cu2O (0.10 mA cm–2 at 0.8 V/SCE). Theoretical studies showed that the electrons in SrTiO3 had large effective masses as compared to electrons in Cu2O at conduction band minima indicating weak mobility of photogenerated electrons in SrTiO3 and strong mobility in Cu2O...read more
Citations
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Journal ArticleDOI
Perovskite Oxide Based Electrodes for High-Performance Photoelectrochemical Water Splitting.
TL;DR: In this review, the research progress in the design, development, and application of perovskite oxides in PEC water splitting is summarized, with a special emphasis placed on understanding the relationship between the composition/structure and (photo)electrochemical activity.
Journal ArticleDOI
Recent advances in hybrid Cu2O-based heterogeneous nanostructures
TL;DR: The correlations between the improved performances and interfacial structures of the hybrid Cu2O-based heterogeneous nanostructures are discussed and the key scientific issues and perspective research directions in this field are given.
Journal ArticleDOI
Cuprous oxide (Cu2O) crystals with tailored architectures: A comprehensive review on synthesis, fundamental properties, functional modifications and applications
TL;DR: In this paper, a comprehensive review of the development of cuprous oxide (Cu2O) crystals with tailored architectures is presented, including the synthetic strategies and corresponding growth mechanisms, fundamental properties of different crystallographic facets, the functional modifications (including doping and hybridization), and their potential applications.
Journal ArticleDOI
Recent advancements in semiconductor materials for photoelectrochemical water splitting for hydrogen production using visible light
TL;DR: In this paper, a review of the latest developments in various synthesis schemes capable of achieving suitable water splitting compositions and architectures while highlighting the challenges being faced when designing visible light-active water splitting photocatalysts is presented.
Journal ArticleDOI
Visible-Light-Active Plasmonic Ag–SrTiO3 Nanocomposites for the Degradation of NO in Air with High Selectivity
TL;DR: This work provides a facile and controllable route to fabricate plasmonic Ag-SrTiO3 nanocomposite photocatalyst featuring high visible light activity and selectivity for NO abatement.
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