Thermoelectric properties of Al-doped mesoporous ZnO thin films

Min Hee Hong, Chang Sun Park, Won Seon Seo, Young Soo Lim, Jung Kun Lee, Hyung Ho Park

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

Al-doped mesoporous ZnO thin films were synthesized by a sol-gel process and an evaporation-induced self-assembly process. In this work, the effects of Al doping concentration on the electrical conductivity and characterization of mesoporous ZnO thin films were investigated. By changing the Al doping concentration, ZnO grain growth is inhibited, and the mesoporous structure of ZnO is maintained during a relatively high temperature annealing process. The porosity of Al-doped mesoporous ZnO thin films increased slightly with increasing Al doping concentration. Finally, as electrical conductivity was increased as electrons were freed and pore structure was maintained by inhibiting grain growth, the thermoelectric property was enhanced with increasing Al concentration.

Original languageEnglish
Article number131537
JournalJournal of Nanomaterials
Volume2013
DOIs
Publication statusPublished - 2013

All Science Journal Classification (ASJC) codes

  • Materials Science(all)

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