Self-compensation in chlorine-doped cdte

Author: bxjj

August undefined, 2024

Webself-compensation in the formation of HR in CdTe is still not completely clear and is often overrated. Moreover, nowadays this term is sometimes used for other, differing meanings, …

Studies of the compensation mechanism in CdTe grown from the …

WebJan 1, 2001 · A 55 (1992) 33. compared to those in chlorine doped or undoped materials. concentration of EDD. Similar results are ob- tained for CdTe:Ti (Fig. 3). The experimental results of 2 x 109 O.cm (CdTe : Ti) and 5 x 109 ~. cm (CdTe : V) can be explained by the compensation model taking into account the detected deep level at 0.66 and 0.77 eV ... WebJan 1, 1974 · Self- compensation produces high resistivity material, but the electrical evaluation of such material is often very difficult or impossible using conventional … plumbing supplies north hollywood

In and Al Schottky Contacts Comparison on P-Type Chlorine-Doped CdTe

WebOct 18, 2024 · Abstract. We investigate the self-compensation mechanism in phosphorus-doped CdTe. The formation energies, charge transition levels, and defect states of … WebAs is known, the low conductivity of CdTe crystals and the high free-carrier lifetimes and mobilities, needed for nuclear radiation detectors [1, 2], can be achieved in a chlorine-doped material owing to the self-compensation of charged atomic defects [3-6]. WebIn the field of CdTe production, the self-compensation and self-purification effects of Cl Te are well known and widely used.21,22 Despite this, the physics behind these two effects is still unsettled. The main question of this paper is the mechanism of self-compensation and self-purification of CdTe by Cl. We focus on the interaction of Cl Te ... plumbing supplies matlock

Energetics and Electronic Properties of Interstitial Chlorine in …

Self-compensation in arsenic doping of CdTe (Journal Article)

WebTe dominant compensation model for detector-grade CdTe:Cl is based on the existence of one compensat- ing deep level located at ∼0.725 eV above the valence band maximum … WebThe role of interstitial chlorine in the electronic properties of CdTe is addressed by density functional theory calculations including hybrid functionals and large unit cells. The stability and diffusion energy barriers of the impurity are analyzed as a function of the Fermi level position in the band gap. Chlorine is found to be stable in at least five interstitial sites with … plumbing supplies launceston tasmaniaWebJan 21, 2015 · The physical properties of CdTe usually are modified by foreign atoms introduced during the crystals’ growth, or by a post-growth diffusion process. [ 1] Thus, knowing the parameters of the diffusion of impurities is of great importance in developing these electronic devices. plumbing supplies marion nc

"WebMay 29, 2001 · Self-compensation of donors first occurs through the generation of ionised cadmium vacancies: (3) V Cd o +2e − ⇔V Cd = [V Cd = ]=K V n 2 [V Cd o] Only doubly ionised vacancies are considered here since the Fermi level is supposed to be much higher than the V=Cd / V−Cd transition energy level. " - Self-compensation in chlorine-doped cdte

Self-compensation in chlorine-doped cdte

Cl-dopingofTe-richCdTe:Complexformation, self …

WebThe exact mechanism of self-compensation is still unclear. Fundamental understanding of the p-type doping mechanism in CdTe is needed to provide critical insights to improve the p-type doping efficiency8. As a choice for p-type doping, arsenic (As) has been a topic of interest in CdTe, especially in HgCdTe9, 10 WebOct 1, 2007 · Cl-doping of Te-rich CdTe: Complex formation, self-compensation and self-purification from first principles Article Full-text available Aug 2015 Anna Lindström Mattias Klintenberg Biplab...

Did you know?

WebFeb 22, 2001 · In this report a brief review of the semi-intrinsic conductivity phenomenon in doped CdTe:Cl, CdTe:Ga and Cd1- xZnxTe materials used for room temperature X and (gamma) -ray detectors is discussed. The upper limit of the resistivity is analyzed in a framework of a general three- levels Fermi-statistic model. The … WebJun 24, 2024 · Europe PMC is an archive of life sciences journal literature.

WebApr 15, 2024 · The performance of the CdTe radiation detectors heavily relies on the method of contact preparation. A convenient research method addressing this problem is the laser-induced transient current... WebNov 1, 1989 · CdTe material with its high molecular weight (240) is today widely used for radiation detection. The band-gap energy of CdTe is 1.45 eV. When doped with chlorine, …

Webself-compensation in chlorine- doped Cdt e Walter orellana 1, eduardo Mennd ez-proupin2& Mauricio A. Flores 3 Defect energetics, charge transition levels, and electronic band … WebJun 24, 2024 · Self-compensation in chlorine-doped CdTe Figure 10 summarizes the formation energies Cl-related defects in CdTe, which are likley to be formed due to their …

WebJul 4, 2024 · Self-compensation in arsenic doping of CdTe Efficient p-type doping in CdTe has remained a critical challenge for decades, limiting the performance of CdTe-based …

WebJun 24, 2024 · Self-compensation in chlorine-doped CdTe Defect energetics, charge transition levels, and electronic band structures of several Cl-related complexes in CdTe … principal controller of defence accounts puneWebJun 24, 2024 · Self-compensation in chlorine-doped CdTe Authors: Walter Orellana Eduardo Menendez Proupin University of Chile Mauricio A. Flores Abstract and Figures Defect … principalcontext securesocketlayerWebJul 4, 2024 · Self-compensation in arsenic doping of CdTe Full Record References (43) Cited by (8) Related Research Abstract Efficient p-type doping in CdTe has remained a critical … principal coordinate analysis softwareWebMar 8, 2024 · The primary objective of this project was to demonstrate n-type CdTe and CdSeTe films prepared by in-situ doping methods using pre-doped source material. Our goal was to achieve electron density (>10 17 cm -3) and lifetime (>10 ns) in … plumbing supplies market harboroughWebOur calculations show that none of the complexes studied induce deep levels in the CdTe band gap. Moreover, we find that Cl Te -V Cd and Cl Te are the most stable Cl-related … plumbing supplies lisburnWebAug 3, 2015 · CdTe shows both self-compensation and self-purification, but not every semiconductor showing self-compensation also shows self-purification. The complex … principal coordinate analysis 분석WebApr 21, 2024 · The primary aim of this paper is the optimization of the CdTe detector with respect to the abovementioned disadvantages—polarization of detectors with Schottky contacts and high leakage current of the detectors with quasi-ohmic contacts. principal construction company memphis tn