Journal article
Enhanced photoelectrochemical properties of ordered branched CdTe nanotubes arrays with near-ideal antireflection
International journal of hydrogen energy, Vol.49, pp.1499-1506
01/2024
DOI: 10.1016/j.ijhydene.2023.10.203
Abstract
Developing high-performance, stable, and cost-effective photoelectrodes for hydrogen production has been a long-standing challenge. A promising approach has been to utilize photoelectrodes in a nanostructured architecture to improve optical absorption and charge collection. In this work we demonstrate the fabrication of highly ordered branched p-type Cadmium Telluride (CdTe) nanotube arrays and test their efficacy for hydrogen production. The branched CdTe nanotube arrays were fabricated using a combination of top down and bottom up approaches. The diameter and branch shape of vertically aligned CdTe nanotubes are controlled to increase the optical absorption due to the increased optical path length and to improve the charge carrier transfer due to the reduced transfer distance in the nanostructures for charge separation. The CdTe nanotubes with long and fine needle-like shaped branches show enhanced photoelectrochemical properties compared to those of broad-branched CdTe nanotubes. The optical absorption and charge transfer characteristics of a photoelectrochemical photoelectrode can be improved using narrow band-gap materials in well-designed nanostructures.
Details
- Title: Subtitle
- Enhanced photoelectrochemical properties of ordered branched CdTe nanotubes arrays with near-ideal antireflection
- Creators
- Donghyun Kim - Korea Institute of Ceramic Engineering and TechnologyDasol Jeong - Korea Institute of Ceramic Engineering and TechnologyWoohyeon Jo - Korea Institute of Ceramic Engineering and TechnologyMin-Kyu SonSoo Won HeoWei Cheng - University of IowaJonathan Koonce - University of IowaSyed Mubeen - University of IowaHyunjung KimHyunsung Jung - Korea Institute of Ceramic Engineering and Technology
- Resource Type
- Journal article
- Publication Details
- International journal of hydrogen energy, Vol.49, pp.1499-1506
- DOI
- 10.1016/j.ijhydene.2023.10.203
- ISSN
- 0360-3199
- eISSN
- 1879-3487
- Grant note
- DOI: 10.13039/501100003052, name: Korea Ministry of Trade Industry and Energy
- Language
- English
- Electronic publication date
- 11/2023
- Date published
- 01/2024
- Academic Unit
- Civil and Environmental Engineering; Iowa Technology Institute; Chemical and Biochemical Engineering
- Record Identifier
- 9984512054502771
Metrics
10 Record Views