Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference (한국전기전자재료학회:학술대회논문집)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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Preparation of Quasi-ordered Hollow $SnO_2$ Hemispheres Using Colloidal Templating Route and Its Application to Gas Sensors

콜로이달 템플레이팅 기술을 통한 준정렬된 다공성 반구구조의 $SnO_2$ 제작과 가스 센서로의 응용

  • Published : 2008.11.06
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Abstract

Quasi-ordered arrays of hollow $SnO_2$ hemispheres were prepared by utilizing the colloidal templating route and RF-sputtering methods. Hollow $SnO_2$ hemispheres with shell thickness of 20nm exhibited an uniform continuity and open porosity, resulting in high gas sensitivity due to enhanced surface area as well as reduced interfacial effects. Multilayered hollow $SnO_2$ hemispheres and hollow $SnO_2$ hemispheres with controlled wall thickness were fabricated by controlling processing steps.

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