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Cu2O Photosensitive Thin Films for Solar Cell Application

Authors:
Ørnulf Nordseth
Bengt Gunnar Svensson
Raj Kumar
Irinela Chilibon
S. E. Foss Foss
Cristina Vasiliu
Raluca Iordanescu
Laurentiu Baschir
Dan Savastru
Laurentiu Fara
Adrian Kiss
Anca Parau

Keywords: copper oxide; solar cell; magnetron sputtering; SEM; AFM; ellipsometry

Abstract:
Among copper oxides, Cu2O is intensively studied due to its high optical absorption coefficient and relatively good electrical properties. Copper oxide thin films properties depend on the deposition method as an effect of detailed arrangement of Cu and O atoms that induce different physical properties. Cu2O is a p-type semiconductor having a band gap sufficiently close to the optimal band gap under AM1.5 radiation spectrum, which makes it an attractive material for photovoltaic applications and solar cells. The structural and morphological properties of deposited thin films were investigated by Scanning Electron Microscopy (SEM) and Atomic Force Microscopy (AFM). The thin film thickness and optical constants were determined by Spectroscopic Ellipsometry (SE). The purpose of the paper was to study the technological possibilities of preparing high quality Cu2O thin films, used in photovoltaic applications. The sputter-deposited Cu2O thin films presented in this work show good potential as absorber layers for photovoltaic applications.

Pages: 47 to 52

Copyright: Copyright (c) IARIA, 2017

Publication date: September 10, 2017

Published in: conference

ISSN: 2308-3514

ISBN: 978-1-61208-581-4

Location: Rome, Italy

Dates: from September 10, 2017 to September 14, 2017