p-type α-Fe2O3 nanowires and their n-type transition in a reductive ambient

Yu Chen Lee*, Yu Lun Chueh, Chin Hua Hsieh, Mu Tung Chang, Li Jen Chou, Zhong Lin Wang, Yann Wen Lan, Chii Dong Chen, Hiroki Kurata, Seiji Isoda

*此作品的通信作者

研究成果: 雜誌貢獻期刊論文同行評審

102 引文 斯高帕斯(Scopus)

摘要

The synthesis and electronic properties of p-type Α-Fe 2O3 nanowires and their n-type transition in a reductive ambient with ordered oxygen vacancies were analyzed. Α-Fe 2O3 was the most stable iron oxide compound material, widely used in photoelectrodes, gas sensing, catalysts, magnetic recording, and in medical fields. SEM and image of Α-Fe2O3 nanowires synthesized on an Fe64Ni36 substrate at 450°C for 10 hours in an Ar ambient of 100 seem was done. A typical TEM image of nanowire with diameter of 18nm was analyzed. The corresponding diffraction pattern confirms the phase of Α-Fe2O3 with a [001] zone axis. The results show that p-type nature of iron oxide nanowire were mainly caused by strong surface adsorption owing to the oxygen vacancies and the large surface to volume ratio.

原文英語
頁(從 - 到)1356-1361
頁數6
期刊Small
3
發行號8
DOIs
出版狀態已發佈 - 2007 八月

ASJC Scopus subject areas

  • 生物技術
  • 生物材料
  • 化學 (全部)
  • 材料科學(全部)

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