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Title: First-principles multiple-barrier diffusion theory. The case study of interstitial diffusion in CdTe

Journal Article · · Physical Review. B, Condensed Matter and Materials Physics
 [1];  [2];  [3];  [2]
  1. National Renewable Energy Lab. (NREL), Golden, CO (United States); Arizona State University
  2. National Renewable Energy Lab. (NREL), Golden, CO (United States)
  3. DGIST, Daegu (Korea)

The diffusion of particles in solid-state materials generally involves several sequential thermal-activation processes. However, presently, diffusion coefficient theory only deals with a single barrier, i.e., it lacks an accurate description to deal with multiple-barrier diffusion. Here, we develop a general diffusion coefficient theory for multiple-barrier diffusion. Using our diffusion theory and first-principles calculated hopping rates for each barrier, we calculate the diffusion coefficients of Cd, Cu, Te, and Cl interstitials in CdTe for their full multiple-barrier diffusion pathways. As a result, we found that the calculated diffusivity agrees well with the experimental measurement, thus justifying our theory, which is general for many other systems.

Research Organization:
Arizona State Univ., Tempe, AZ (United States)
Sponsoring Organization:
USDOE Office of Energy Efficiency and Renewable Energy (EERE)
Grant/Contract Number:
EE0006344
OSTI ID:
1237016
Report Number(s):
DOE-ASU--0006344-6
Journal Information:
Physical Review. B, Condensed Matter and Materials Physics, Journal Name: Physical Review. B, Condensed Matter and Materials Physics Journal Issue: 7 Vol. 91; ISSN 1098-0121; ISSN PRBMDO
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

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Cited By (12)

Kinetic Simulations of Cu Doping in Chlorinated CdSeTe PV Absorbers journal February 2019
Energetics and Electronic Properties of Interstitial Chlorine in CdTe journal October 2018
Point defect engineering in thin-film solar cells journal June 2018
Non-Radiative Carrier Recombination Enhanced by Two-Level Process: A First-Principles Study journal February 2016
Defect interactions and the role of complexes in the CdTe solar cell absorber journal January 2017
Abnormal diffusion behaviors of Cu atoms in van der Waals layered material MoS 2 journal January 2019
Theoretical analysis of non-radiative multiphonon recombination activity of intrinsic defects in CdTe journal February 2016
Review on first-principles study of defect properties of CdTe as a solar cell absorber journal July 2016
Metastability and reliability of CdTe solar cells journal March 2018
Phosphorus Diffusion Mechanisms and Deep Incorporation in Polycrystalline and Single-Crystalline CdTe journal May 2016
Impurity diffusion induced dynamic electron donors in semiconductors journal October 2019
Beyond thermodynamic defect models: A kinetic simulation of arsenic activation in CdTe journal October 2018

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