Work

Post-growth CdCl_2 treatment on CdTe thin films grown on graphene layers using a close-spaced sublimation method

Year: 2014

Type: article

Abstract: We investigated the morphological, structural and optical properties of CdCl₂-treated cadmium telluride (CdTe) thin films deposited on defective graphene using a close-spaced sublimation (CSS) system. Heat treatment in the presence of CdCl₂ caused recrystallization of CSS-grown CdTe over the as-deposited structures. The preferential (111) orientation of as-deposited CdTe films was randomized after post-growth CdCl₂ treatment. New small grains (bumps) on the surface of CdCl₂-treated CdTe films were ascribed to nucleation of the CdTe grains during the CdCl₂ treatment. The properties of as-deposited and CdCl₂-treated CdTe films were characterized by room temperature micro-photoluminescence, micro-Raman spectroscopy, scanning electron microscopy, and X-ray diffraction analysis. Our results are useful to demonstrate a substrate configuration CdTe thin film solar cells.

Source: Optics Express

DOI: 10.1364/oe.22.00a986

Authors: Younghun Jung, Gwangseok Yang, Seungju Chun, Donghwan Kim, Jihyun Kim

Institution: Korea University

Language: English

Topic: Chalcogenide Semiconductor Thin Films

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,270

OpenAlex ID: W2131839401

FWCI: 1.381

Cites: 20

Cited by: 18

Related to: 10