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1. (WO2012125592) LOCALIZED DEPOSITION OF POLYMER FILM ON NANOCANTILEVER CHEMICAL VAPOR SENSORS BY SURFACE-INITIATED ATOM TRANSFER RADICAL POLYMERIZATION

Pub. No.:    WO/2012/125592    International Application No.:    PCT/US2012/028831
Publication Date: Fri Sep 21 01:59:59 CEST 2012 International Filing Date: Tue Mar 13 00:59:59 CET 2012
IPC: G01N 13/00
G01N 30/93
Applicants: CALIFORNIA INSTITUTE OF TECHNOLOGY
MCCAIG, Heather
MYERS, Edward, B.
ROUKES, Michael, L.
LEWIS, Nathan, S.
CHI, Derrick
Inventors: MCCAIG, Heather
MYERS, Edward, B.
ROUKES, Michael, L.
LEWIS, Nathan, S.
CHI, Derrick
Title: LOCALIZED DEPOSITION OF POLYMER FILM ON NANOCANTILEVER CHEMICAL VAPOR SENSORS BY SURFACE-INITIATED ATOM TRANSFER RADICAL POLYMERIZATION
Abstract:
Cantilever chemical vapor sensors that can be tailored to respond preferentially in frequency by controlling the location of deposition of an adsorbing layer. Cantilever chemical vapor sensor having a base, one or more legs and a tip are fabricated using a gold layer to promote deposition of a sorbing layer of a polymeric material in a desired location, and using a chromium layer to inhibit deposition of the sorbing layer in other locations. Sorbing layers having different glass temperatures Tg and their effects are described. The methods of making such cantilever chemical vapor sensors are described.