Experimental dataset of nanoporous GaN photoelectrode supported on patterned sapphire substrates for photoelectrochemical water splitting

Dongjing Li; Jianghua Liu; Yang Wang; Aixia Wu; Ruolin Ruan; Zeping Li; Zhimou Xu

doi:10.1016/j.dib.2019.104433

Experimental dataset of nanoporous GaN photoelectrode supported on patterned sapphire substrates for photoelectrochemical water splitting

Data Brief. 2019 Aug 28:26:104433. doi: 10.1016/j.dib.2019.104433. eCollection 2019 Oct.

Authors

Dongjing Li¹, Jianghua Liu¹, Yang Wang¹, Aixia Wu¹, Ruolin Ruan¹, Zeping Li^{1

2}, Zhimou Xu²

Affiliations

¹ School of Electronic Information and Engineering, Hubei University of Science and Technology, Xianning 437005, China.
² School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan 430074, China.

Abstract

GaN is one of the most promising materials for high PEC efficiency to produce clean, renewable hydrogen in an ecofriendly manner (Ebaid et al., 2015; Kamimura et al., 2017; Yang et al., 2018; Ohkawa et al., 2013). Trough assays of nanoporous gallium nitride (GaN) photoelectrode, we recently demonstrated an improved PEC efficiency and photocurrent density of nanoporous GaN photoelectrode by 470% times with respect to planar counterpart (Li et al., 2019). Here, we report original data acquired under UV-visible spectrometer, X-ray diffraction (XRD), room temperature PL measurements and PEC measurements, based on the characterization of different sapphire substrate, different GaN samples and different GaN photoelectrodes. The optical properties and photoelectrochemical properties of the corresponding samples and possible mechanisms are presented, which is freely available (Li et al., 2019). The data can be valuable for researchers interested in photoelectrochemical water splitting, as well as to researchers developing fabrication of nanoporous photoelectrode. For more insight please see the research article "A nanoporous GaN photoelectrode on patterned sapphire substrates for high-efficiency photoelectrochemical water splitting", https://doi.org/10.1016/j.jallcom.2019.06.234.

Keywords: Anodic aluminum oxide (AAO); Gallium nitride (GaN); Patterned sapphire substrate (PSS); Photoelectrochemical water splitting; Photoelectrode.