thin film metal-oxides

... WO 3 thin films is electrochromic devices based on electrochromism, in which optical properties WO 3 alter reversibly under electrical bias applied [1-3]. Moreover, recently WO 3 thin films ... 12 March 2009 Abstract. Tungsten oxide film was deposited on ITO-coated glass by using RF magnetron sputtering method from WO 3 ceramic target. Thin film preparation – process took pl...

Ngày tải lên: 13/02/2014, 03:20

... technical questions, contact: filmresistorsleaded@vishay.com www.vishay.com Revision: 12-Dec-12 81 MBA/SMA 0204, MBB/SMA 0207, MBE/SMA 0414 - Precision Precision Thin Film Leaded Resistors Vishay ... standards. Precision Thin Film Leaded Resistors MBA/SMA 0204, MBB/SMA 0207, MBE/SMA 0414 - Precision Vishay Beyschlag www.vishay.com For technical questions, contact: filmresistorsleaded...

Ngày tải lên: 20/02/2014, 10:20

... online April 20, 2010 Thin- film transistors (TFTs) were fabricated on a glass substrate with a metal organic chemical vapor deposition (MOCVD)-grown undoped zinc oxide (ZnO) film as a channel layer ... Enhancement-Mode Metal Organic Chemical Vapor Deposition-Grown ZnO Thin- Film Transistors on Glass Substrates Using N 2 O Plasma Treatment Kariyadan Remashan, Yong-Seok ... phtotoelect...

Ngày tải lên: 05/03/2014, 21:20

... of the thin films was about 70 nm. The gas sensitivity of the thin film with Ag electrode was almost the same as that with Au electrode. However, Au electrode was easily torn from thin film. Therefore, ... the film fired at 4508C. The thin film fired at 4508C proved to have the highest gas sensitivity and selectivity to H among reducing gases: H , CO and CH . A XRD 224 profile...

Ngày tải lên: 19/03/2014, 16:48

... MWCNTs/SnO 2 composite is too thin, the response will be decreased. Such gas-response dependent on the thickness of the composite MWCNTs/SnO 2 thin film sensor has not been clear so far. It seems that the thin film ... composite powder as well as in the composite thin film at calcination temperatures up to 550 ◦ C. The effect of the preparation process of the sensitive composite thin fil...

Ngày tải lên: 19/03/2014, 16:48

... NH 3 response of PANI/TiO 2 thin film gas sensor Huiling Tai, Yadong Jiang ∗ , Guangzhong Xie, Junsheng Yu ∗ , Xuan Chen, Zhihua Ying State Key Laboratory of Electronic Thin Films and Integrated Devices, ... spectra of a PANI thin film prepared at 20 ◦ C and PANI/TiO 2 nanocomposite thin films prepared at different polymerization tem- peratures. 2.2. Fabrication of PANI/TiO 2 nanocomposi...

Ngày tải lên: 20/03/2014, 13:04

... Sensors and Actuators B 119 (2006) 327–334 Review Modeling of the conduction in a WO 3 thin film as ozone sensor J. Gu ´ erin ∗ , K. Aguir, M. Bendahan L2MP UMR-CNRS, F.S.T. St. J´erˆome, ... rights reserved. Keywords: Adsorption; Electrical conductivity; WO 3 ; Gas sensors; Ozone; Modeling; Thin films Contents 1. Introduction 327 2. Wolkenstein adsorption theory 328 2.1. Non-dissociative ....

Ngày tải lên: 20/03/2014, 13:04

... is to create thin metal oxide films with small grain size by using a special regime of rf sputtering from either metallic or metaloxide targets. The regime includes the deposition of thin films with ... direction includes the technologies via with thin films of nanometer grain size can be deposited. As a rule, these technologies are used to obtain thin film gas sensors. For example, activ...

Ngày tải lên: 20/03/2014, 13:05

... NO 2 sensitivity of WO 3 thin film gas sensors. Part 1. Thin film devices, sensors and actuators, Thin Solid Films 287 (1996) 258–265. [7] V. Demarne, A. Grisel, An integrated low-power thin film CO gas sensors ... to prepare thin films on Al 2 O 3 substrate that was coated with Pt elec- trode by dip coating. The thin films can be dried within sev- eral hours at 60 ◦ C. The as-made bul...

Ngày tải lên: 20/03/2014, 13:07

... response-recovery. The response of the PPY/SWCNTs composite 23 thin film gas sensor strongly depends on the preparation process of the sensitive film, including film 24 thickness, SWCNTs content and annealing ... polypyrrole thin films for vapour sensing, 3 Sens. Actuators B, 115 (2006) 547-551.4 10. M.K. Ram, Ö. Yavuz, V. Lahsangah, M. Aldissi, CO gas sensing from ultrathin nano-com...

Ngày tải lên: 20/03/2014, 13:11