12.3% Efficient Lifted-Off and Reconstructed As-Doped CdTe Thin Film Solar Cell

Ochai Oklobia, Deborah L. McGott, Giray Kartopu, Steve Jones, Stuart J.C. Irvine

Research output: Chapter in Book/Report/Conference proceedingConference contribution


CdTe:As devices grown by MOCVD in the superstrate configuration have been reconfigured to a substrate structure, by employing a cleaving and reconstruction technique. Indium and aluminium doped Zinc oxide (IZO and AZO) layers were used as the transparent front interface without a metal grid. A substrate efficiency of 12.3% was realized with AZO front contact, retaining 80% of the superstrate device efficiency and an impressive 99% of the open-circuit voltage. The IZO-based substrate device on the other hand performed at ~ 69% retained efficiency. The crucial role of front interfaces is highlighted by the two contacts used here. The results in this work show promise for the development of highly efficient substrate CdTe:As devices.

Original languageEnglish
Title of host publication2023 IEEE 50th Photovoltaic Specialists Conference, PVSC 2023
Place of PublicationPiscataway, NJ, USA
Number of pages3
ISBN (Electronic)9781665460590
Publication statusPublished - 11 Jun 2023
Event50th IEEE Photovoltaic Specialists Conference, PVSC 2023 - San Juan, United States
Duration: 11 Jun 202316 Jun 2023

Publication series

NameConference Record of the IEEE Photovoltaic Specialists Conference
ISSN (Print)0160-8371


Conference50th IEEE Photovoltaic Specialists Conference, PVSC 2023
Country/TerritoryUnited States
CitySan Juan

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