Transparent ZnO-nanowire-based device for UV light detection and ethanol gas sensing on c-Si solar cell

Chih Hung Lin, Shoou Jinn Chang, Wei Shou Chen, Ting Jen Hsueh

Research output: Contribution to journalArticlepeer-review

25 Citations (Scopus)

Abstract

In this study, a transparent ZnO nanowire (NW)-based device for ethanol gas sensing and ultraviolet (UV) detection was fabricated and deposited onto an indium tin oxide/crystalline silicon (c-Si) solar cell. For UV detection, the photocurrent increased rapidly with a time constant of about 137 s when UV excitation was applied. The photocurrent decreased from 3 × 10-6 to 1.2 × 10-7 A when the UV light was switched off. For ethanol gas sensing, UV light was used to increase the quantity of O2- species. The ZnO sensor response increased from 8% to 21% when the ethanol gas concentration was increased from 50 to 150 ppm at 53 °C (heat generated by the c-Si solar cell). The sensor response approximately zero without solar illumination. The sensor had almost no effect on the transfer efficiency of the solar cell.

Original languageEnglish
Pages (from-to)11146-11150
Number of pages5
JournalRSC Advances
Volume6
Issue number14
DOIs
Publication statusPublished - 2016

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)

Fingerprint Dive into the research topics of 'Transparent ZnO-nanowire-based device for UV light detection and ethanol gas sensing on c-Si solar cell'. Together they form a unique fingerprint.

Cite this