Fabrication of hollow inorganic nanostructures using polymer templates and their application in electrochemical devices고분자 템플레이트를 이용한 다공성 무기 나노구조체 형성 및 전기화학소자 응용에 관한 연구

Cited 0 time in webofscience Cited 0 time in scopus
  • Hit : 421
  • Download : 0
In this work we present a new processing strategy for the fabrication of unique device architectures comprising hollow nanofibers and hemispheres of inorganic materials with typical length of up to submicrometer diameter, and wall thickness of several tens of nanometers. These hollow structures can be assembled in different ways enabling to construct nanoengineered device architectures with tailored functional properties. We demonstrate application of this fabrication method as a means to produce highly sensitive chemical sensors comprising hollow hemisphere of metal oxide, an important material with potential applications in electronic and optoelectronic devices. Our fabrication method involves polymeric colloidal templating / electrospinning of polymer source materials that serve as sacrificial templates for subsequent physical vapor deposition (PVD) of inorganic materials such as metal oxides or metals in the form of thin overlayers that coat the colloids / fibers. Finally, the polymer template is decomposed by calcination, leaving hollow hemispheres / fibers of the inorganic shells. Among the different strategies for producing hollow spheres / fibers of organic or inorganic materials, colloidal templating / electrospinning offers several advantages including ease of fabrication and versatility.
Advisors
Kim, Ho Giresearcher김호기researcher
Description
한국과학기술원 : 신소재공학과,
Publisher
한국과학기술원
Issue Date
2011
Identifier
466402/325007  / 020085177
Language
eng
Description

학위논문(박사) - 한국과학기술원 : 신소재공학과, 2011.2, [ vii, 126 p. 기 조남규]

Keywords

Gas Sensor; Electrospinning; Colloidal Template; Hollow Nanostructure; Metal Oxide; 금속 산화물; 가스센서; 전기방사; 콜로이달 템플레이팅; 공동 나노구조

URI
http://hdl.handle.net/10203/49882
Link
http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=466402&flag=dissertation
Appears in Collection
MS-Theses_Ph.D.(박사논문)
Files in This Item
There are no files associated with this item.

qr_code

  • mendeley

    citeulike


rss_1.0 rss_2.0 atom_1.0