Improvement in n-ZnO/p-Si diode properties using ZnO/AZO homogeneous metal contact

In this study, an n-ZnO/p-Si diode with a ZnO/AZO homogeneous metal contact was fabricated and compared with a ZnO/Al metal contact. AZO films were deposited using atomic layer deposition (ALD). Prior to the device fabrication, the AZO films were optimized in terms of their characteristic as TCO on...

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Veröffentlicht in:Japanese Journal of Applied Physics 2014-08, Vol.53 (8S3), p.8-1-08NJ03-4
Hauptverfasser: An, Jin Un, Yun, Ho Jin, Jeong, Kwang Seok, Kim, Yu Mi, Yang, Seung Dong, Kim, Seong Hyeon, Kim, Jin Sup, Ko, Young Uk, Lee, Hi Deok, Lee, Ga Won
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container_end_page 1-08NJ03-4
container_issue 8S3
container_start_page 8
container_title Japanese Journal of Applied Physics
container_volume 53
creator An, Jin Un
Yun, Ho Jin
Jeong, Kwang Seok
Kim, Yu Mi
Yang, Seung Dong
Kim, Seong Hyeon
Kim, Jin Sup
Ko, Young Uk
Lee, Hi Deok
Lee, Ga Won
description In this study, an n-ZnO/p-Si diode with a ZnO/AZO homogeneous metal contact was fabricated and compared with a ZnO/Al metal contact. AZO films were deposited using atomic layer deposition (ALD). Prior to the device fabrication, the AZO films were optimized in terms of their characteristic as TCO on a soda lime glass. Their resistivity is 1.08 × 10−3 Ω·cm and their transmittance is over 80% in the visible light region for a 5% Al doping concentration. The leakage current of ZnO/AZO homogeneous contact diodes is lower than that of ZnO/Al devices. In addition, under thermal stress induced by changing substrate temperature from 300 to 450 K, the contact resistance of the ZnO/AZO structure is more stable than that of the ZnO/Al structure.
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source Institute of Physics Journals; Institute of Physics (IOP) Journals - HEAL-Link
subjects Aluminum
Azo
Contact
Deposition
Devices
Diodes
Leakage current
Transmittance
Zinc oxide
title Improvement in n-ZnO/p-Si diode properties using ZnO/AZO homogeneous metal contact
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