Well dispersed SnO2 nanoclusters preparation and modulation of metal-insulator transition induced by ionic liquid

Z.-H. Liu, X. Chen, Y.-Y. Zhu, S.-H. Zhao, Z.-Q. Wang, F. Wang, Q.-Q. Meng, L. Zhu, Q.-F. Zhang, B.-L. Wang, L.-L. Fan

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

Tin dioxide (SnO2) has attracted broad interest due to its particular gas-sensor property. Nano- or atom-scale SnO2 material has always been the aim in order to ultimately improve the sensitivity. However, until now, it remains difficult to synthesize SnO2 nanoclusters by using traditional methods. In the present work, we have achieved the preparation of SnO2 nanoclusters by using the cluster beam deposition technique. The obtained nanoclusters were well characterized by high resolution transmission electron microscope HR-TEM. Results indicated the formation of the well-dispersed SnO2 nanoclusters with uniform size distribution (5-7?nm). Furthermore, an obvious metal insulator transition was observed by gating with ionic liquid. Combined with theory calculation, the corresponding mechanism was systematically analyzed from oxygen vacancy induced electron doping.
Original languageEnglish
Pages (from-to)248-252
Number of pages5
JournalChinese Journal of Chemical Physics
Volume32
Issue number2
DOIs
Publication statusPublished - 2019

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