IEEE CdSe CBD Kerrie Morris Amended Draft Final.pdf (1.05 MB)
0/0

Chemical bath deposition of thin film CdSe layers for use in Se alloyed CdTe solar cells

Download (1.05 MB)
conference contribution
posted on 16.01.2020 by Kerrie Morris, Christos Potamialis, Francesco Bittau, Jake Bowers, Michael Walls
Chemical bath deposition (CBD) was used as a method to deposit CdSe thin films for use in CdTe solar cells. Solution parameters such as precursor stoichiometry, concentration and deposition time, were varied to assess the impact on the morphology of the CdSe films deposited on FTO coated glass. The solution precursors were cadmium acetate and sodium selenosulphite with NH3 used as a complexant to control the release of ions into the solution. It was seen that particle size, surface coverage and thickness were successfully controlled. CdSe films were grown with a band gap of ~1.74 eV and were made into full devices with CdTe. A ternary compound of CdTe1-xSex formed with a band gap of ~1.40 eV, which was shown in an improved EQE in the IR, as well as an improved Jsc. The best device, with an efficiency of 12.3% was produced from a 280 nm thick film with a surface coverage of 59% and grain size of ~600 nm. An increased response at longer wavelengths due to the lowered band gap resulted in a high JSC value of 28.2 mA cm-2 sugg

History

School

  • Mechanical, Electrical and Manufacturing Engineering

Research Unit

  • Centre for Renewable Energy Systems Technology (CREST)

Published in

2019 IEEE 46th Photovoltaic Specialists Conference(PVSC)

Pages

1857 - 1862

Source

46th IEEE Photovoltaic Specialists Conference (PVSC-46)

Publisher

IEEE

Version

AM (Accepted Manuscript)

Rights holder

© IEEE

Publisher statement

Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.

Acceptance date

21/06/2019

Publication date

2020-02-06

Copyright date

2019

ISBN

9781728104942

Language

en

Location

Chicago, IL

Event dates

17th June 2019 - 21st June 2019

Depositor

Mrs Kerrie Morris Deposit date: 16 January 2020

Exports

Logo branding

Categories

Exports