CuI-TiO Composite Thin Film for Flexible Electronic Applications
Date
2019
Authors
Raj, Vidur
Lockrey, Mark
Liu, Rong
Tan, Hark Hoe
Jagadish, Chennupati
Journal Title
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Volume Title
Publisher
IEEE
Abstract
Copper iodide (CuI) is a p-type transparent conductor that can be synthesized and doped at low temperature (≤ 100 °C) while maintaining its high-conductivity and high optical transmittance (> 75 %). The realization of such simultaneously high conductivity and transparency makes CuI useful for applications in both active and passive flexible electronics. However, a few of the major disadvantages of CuI include its optical and electronic stability at ambient atmosphere and reduced transparency with iodine doping. In this report, instead of using pure CuI, we fabricate CuI-TiO composite thin films which are highly transparent and stable at ambient conditions whilst maintaining degenerate p-type conductivity. The CuI-TiO composite film is >80 % transparent (450- 2000 nm range), highly conducting ( 77 S/cm), heavily doped (> 1.2 × 1020 /cm3), with a mobility of 3.5 cm2V-1s-1.
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Source
2018 Conference on Optoelectronic and Microelectronic Materials and Devices, COMMAD 2018
Type
Conference paper
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Entity type
Access Statement
Open Access
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DOI
10.1109/COMMAD.2018.8715246