Solution grown cds layers for heterojunction polycrystalline thin film solar cells

Abstract

Solution grown cadmium sulphide layers are used in polycrystalline thin film CulnSe2 and CdTe solar cells. This thesis presents a study of the CdS thin film solution growth fabrication process using either cadmium acetate or cadmium chloride as a source of Cd ions. Sulphur ions were provided by thiourea. The solution growth process was carried out with and without buffer solutions of ammonium acetate or ammonium chloride on glass substrates with or without SnO2:F coatings. The effects of varying the cadmium ion molar concentration [0.001M/0.002M/0.003MJ, the sulphide ion molar concentration [0.002M/0.006M/0.01MJ, the buffer solution concentration [0.02M/0.04M/0.06M], the temperature [80°C/85°C/90°CJ, the pH [9/9.5/10), and the deposition time [6 min/12 min/20 min/30 min] on the composition, structure, morphology, optical, and photoconducting properties were investigated. It was found that the CdS deposition rate could be increased by increasing the temperature to 90°C and by using the buffer molar concentration of o. 04M. Low resistivity was obtained by employing the cadmium molar concentration of 0.003M and the sulphur molar concentration of 0.0lM. The highest optical transmission and smoothest surface morphology were achieved by using a temperature of ao 0 c. Adjusting the pH at 9 resulted in high photoconductivity.

Notes

This item is only available in print in the UCF Libraries. If this is your thesis or dissertation, you can help us make it available online for use by researchers around the world by STARS for more information.

Graduation Date

1992

Semester

Spring

Degree

Master of Science (M.S.)

College

College of Engineering

Format

PDF

Pages

81 p.

Language

English

Length of Campus-only Access

None

Access Status

Masters Thesis (Open Access)

Identifier

DP0029871

Subjects

Dissertations, Academic -- Engineering; Engineering -- Dissertations, Academic

This document is currently not available here.

Share

COinS
 

Accessibility Statement

This item was created or digitized prior to April 24, 2026, or is a reproduction of legacy media created before that date. It is preserved in its original, unmodified state specifically for research, reference, or historical recordkeeping. In accordance with the ADA Title II Final Rule, the University Libraries provides accessible versions of archival materials upon request. To request an accommodation for this item, please submit an accessibility request form.