properties and sensor performance of zinc oxide thin films

... depleted necks and (b) A completely necks [21] 29 Properties and Sensor Performance of Zinc Oxide Thin Films by Yongki Min Submitted to the Department of Materials Science and Engineering ... operative in thin film sensors. Specifically, the influence of thin film processing conditions and DC applied bias on the properties and gas sensing...

Ngày tải lên: 28/05/2014, 14:44

... depending on the thickness and the refraction index of the film. From the ellipsometry spectra of the samples one can find out the optic constants and optical properties of the films. This work presents ... between the measured and calculated values of the ellipsometric parameters (ψ and ∆) and accurate information has been derived regarding the thickness and opti...

Ngày tải lên: 28/03/2014, 13:20

... ellipsometry and spectrophotometer measurement, several characteristics of IZO thin films were discussed comparing with those of ITO thin films. Very low surface roughness of IZO thin films could ... w Keywords: Indium oxide; Zinc oxide; Electrical properties and measurements; Optical properties 1. Introduction Good transparent conducting oxides (TCOs) should have...

Ngày tải lên: 24/05/2014, 13:53

... deposition of Schottky barriers and MOS transistor gates [24,25]. The use of this regime has allowed obtaining the enhancement of catalytic properties of Pt-SiO 2 thin films, as well [26]. Among metal oxide ... sensitivity Table 2 Sensor sensitivity (S) in the presence of 10 ppm of ammonia as a function of the working temperature and number of interruptions of the...

Ngày tải lên: 20/03/2014, 13:05

... stupid, and wisdom to men void of understanding; capable of soothing the sorrows of the afflicted, of healing the wounds of the spirit, and assuaging the anguish of a broken heart. But how it fulfils ... the course of the winter and spring; and most of those were in the habit of A Dissertation on the Medical Properties by A. McAllister 17 using ardent spirit freely...

Ngày tải lên: 17/02/2014, 22:20

... to incorporate performance- based practices through broader state- ments of needs, refinement and reduction of performance metrics, xiv Defining Needs and Managing Performance of Installation ... should be performed; the use of measurable performance standards and quality assurance surveillance plans to track performance against clear goals; and the use of positive...

Ngày tải lên: 18/02/2014, 17:20

... final properties of the product. A method is presented to quantify the effect of thermal and pressure history on the isotropic and quiescent crystallization kinetics of four important structures of ... in terms of the number of spherulites, radius, surface and volume [27] (for clarity the index i in this set of equations is left out): Structure Development and Mechanica...

Ngày tải lên: 22/02/2014, 09:20

... 34% between dNK and dGK [29], and 47% between dGK and dCK [28], and the structures of dNK, dGK and dCK appeared to be very similar [27,28]. Despite the very low sequence identity of the cellular ... V106I, V106K, V106L, V106M, V106Q and V106T. We then characterized the enzymatic properties of the mutant enzymes. Theapparentnativesizesofthe–ATPformsofV106WT and of the m...

Ngày tải lên: 16/03/2014, 16:20

... constant. Analysis of unfolding data Unfolding of free and NP-treated ToxRp was monitored by fluorescence k max (k ex = 295 nm), as a function of the con- centration of urea and of GdnHCl. Analysis of denaturant- induced ... as biosensors and in drug delivery. However, our understanding of the effect of NPs on the structure of proteins is still in a nascent state. In th...

Ngày tải lên: 23/03/2014, 03:20

... measure- ment of k* on and k* off . At [LCTI] ⁄ [trypsin] ¼ 1.1 and 2.25 the conversion of LCTI into LCTI* (Fig. 3, curves 2 and 3), allowed the simultaneous computation of k off , k* on and k* off . ... to 135 min )1 and to 3.85 min )1 and K M values of 1250 lm and 850 lm for BApNA and GPpNA, respectively, by means of standard Lineweaver–Burk analysis of initial r...

Ngày tải lên: 23/03/2014, 10:21