Investigations on Hot-wall deposited Cadmium Sulphide buffer layer for thin film solar cell
Artikel i vetenskaplig tidskrift, 2018

Cadmium Sulphide (CdS) thin films were deposited on to well-cleaned soda lime glass substrates using hot wall deposition technique at room temperature. The structure of CdS thin films was found to be hexagonal with < 0 0 2 > orientation and after annealing the film crystallized to < 0 0 2 >, < 1 0 1 >, < 1 0 2 >, < 1 1 2 > directions. Raman Spectroscopy confirmed the hexagonal structure with a shift at 312 cm(1). SAED pattern from the Transmission electron microscopy also confirmed the formation of hexagonal CdS. X-ray Photoelectron Spectroscopy confirmed the formation of CdS with relevant at% of Cd and S. Field emission scanning electron microscopy images revealed smooth surface of the thin film with distinctive grains. Atomic force microscopy results showed a surface roughness of 4.47 nm. Transmission spectra of the films were studied and the transparency was found to be above 80%. The optical band gap was found to be around 2.4 eV in accordance with the reported values. The results show that device quality buffer layers can be deposited using Hot-wall deposition. (C) 2018 Elsevier B.V. All rights reserved.

Thin film solar cell

Buffer layer

Vacuum deposition

Cadmium Sulphide

Optical films

Film uniformity

Författare

G. Balaji

PSG College of Technology

R. Balasundaraprabhu

PSG College of Technology

S. Prasanna

PSG College of Technology

N. Prabavathy

PSG College of Technology

M. R. Venkatraman

Coimbatore Institute of Technology

Vijayshankar Asokan

Chalmers, Kemi och kemiteknik, Energi och material, Oorganisk miljökemi

N. Muthukumarasamy

Coimbatore Institute of Technology

M. D. Kannan

PSG College of Technology

K. Sivakumaran

PSG College of Technology

Materials Letters

0167-577X (ISSN)

Vol. 222 82-87

Ämneskategorier

Oorganisk kemi

Materialkemi

Den kondenserade materiens fysik

DOI

10.1016/j.matlet.2018.03.185