期刊
SOLAR ENERGY MATERIALS AND SOLAR CELLS
卷 210, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.solmat.2020.110485
关键词
Single-source precursors; Nanofibers; Electrospinning; Water splitting; Photoelectrochemical water splitting
资金
- DFG Priority Program Perovskites [SPP 2196/1]
- Alexander von Humboldt Foundation
- German Federal Ministry for Education and Research
Electrospinning of SrNb2O6 nanofibers from a single bimetallic alkoxide precursor [SrNb2((OPr)-Pr-i)(12)((HOPr)-Pr-i)] and the application of resulting oxide nanofiber meshes as potential photoanode material for solar water splitting is reported. Direct formation of single phase SrNb2O6 nanofibers from the precursor gel was favored by the tailored Sr:Nb ratio (1:2) and preordering of cations through Sr-O(R)-Nb units present in the molecular precursor. X-ray diffraction and photoelectron spectroscopy confirmed the chemical composition and formation of SrNb2O6 phase. A minor amount of orthorhombic SrNb6O16 phase was observed, when small excess of alkali metal was present during the precursor synthesis. The optical bandgap of photoelectrodes, produced by doctor blading and spin coating of the nanofibers, revealed bandgap energies between 3.25 and 3.43 eV, owing to different microstructure of the photoelectrodes. The measurement of photoelectrochemical properties in basic conditions showed photocurrent density values at 1.23 eV ranging from 0.06 mA/cm(2) to 0.16 mA/cm(2). A maximum value of 0.6 mA/cm(2) was obtained for spin-coated nanofiber photoelectrodes.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据