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Self-compensation in chlorine-doped cdte

WebJul 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 … 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 ...

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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... WebOPEN Self-compensation in chlorine- doped CdTe Walter Orellana 1, Eduardo Menéndez-Proupin2 & Mauricio A. Flores 3 Defect energetics, charge transition levels, and electronic band structures of several Cl-related Received: 20 March 2024 complexes in CdTe are studied using density-functional theory calculations. mit operations https://korperharmonie.com

Why shallow defect levels alone do not cause high resistivity …

WebIn this study, close-spaced sublimation (CSS) grown cadmium telluride (CdTe) thin films with good adhesion to 100 µm thin Schott D263T ultra-thin glass (UTG) were investigated. Cadmium chloride (CdCl2) treatment in vacuum ambient was executed to enhance the film quality and optoelectrical properties of CdTe thin film. The post-deposition annealing … WebAug 24, 2016 · Self-compensation in chlorine-doped CdTe. 24 June 2024. Walter Orellana, Eduardo Menéndez-Proupin & Mauricio A. Flores. Effective band gap engineering in multi-principal oxides (CeGdLa-Zr/Hf)Ox ... WebApr 23, 2024 · a General outline of materials design process leading to ML-driven prediction of properties based on DFT data and intermediate step of converting materials to numerical descriptors. b The Zinc... mit openoffice pdf bearbeiten

Impurity doping and compensation mechanisms in CdTe

Category:Self-compensation in CdTe - ScienceDirect

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Self-compensation in chlorine-doped cdte

Self-compensation in chlorine-doped CdTe - mendeley.com

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 … 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...

Self-compensation in chlorine-doped cdte

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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]. WebWe also find that chlorine can induce a deep acceptor level in the bandgap after binding with three Cd host atoms, which can explain the experimentally observed high resistivity in …

WebAug 3, 2015 · CdTe shows both self-compensation and self-purification, but not every semiconductor showing self-compensation also shows self-purification. The complex discussed in this paper, ( ClTe – VCd) −1, consists of a pairing of a cation vacancy ( VCd) with a donor impurity ( ClTe) and is often referred to as an A-center. WebOct 1, 1995 · Abstract Impurity compensation in CdTe doped with chlorine is usually attributed to the formation of stable associates between donors (Cl {sub Te}) and cadmium vacancies (V {sub cd}), which reduces concentration of cadmium vacancies, a dominant type of intrinsic defect in CdTe.

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 … 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 ...

WebTo better understand the compensation mechanism and the metastable effects related to Cu acceptors, the most common p-type dopant in CdTe, …

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 … mit operations research mastersWebMar 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 … mit operation research masterWebNov 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, … ingersoll chip surfer