Cd 1-x Zn x Te photodetectors with transparent conductive ZnO contacts

Ke Tang; Jian Huang; Yuanxi Lu; Yan Hu; Yibin Shen; Jijun Zhang; Qingmiao Gu; Linjun Wang; Yicheng Lu

doi:10.1016/j.apsusc.2017.10.023

Cd _1-x Zn _x Te photodetectors with transparent conductive ZnO contacts

Ke Tang
, Jian Huang
, Yuanxi Lu
, Yan Hu
, Yibin Shen
, Jijun Zhang
, Qingmiao Gu
, Linjun Wang
, Yicheng Lu

School of Engineering, Electrical & Computer Engineering

Rutgers, The State University

Research output: Contribution to journal › Article › peer-review

13 Scopus citations

Abstract

High quality Cd _1-x Zn _x Te (CZT) films were prepared using the close-spaced sublimation (CSS) technique. CZT film UV (ultraviolet) photodetectors were fabricated with B and Ga co-doped ZnO (BGZO) transparent conductive interdigitated contacts. The contact properties of BGZO/CZT were investigated by the transmission line model (TLM). The results indicate that a good ohmic contact is formed between BGZO and CZT with a very low contact resistivity of about 0.26 Ω·cm ² . Compared with CZT photodetectors with Au contacts, the detectors with BGZO contacts show a higher value of UV photo response.

Original language	American English
Pages (from-to)	177-180
Number of pages	4
Journal	Applied Surface Science
Volume	433
DOIs	https://doi.org/10.1016/j.apsusc.2017.10.023
State	Published - Mar 1 2018

ASJC Scopus subject areas

Condensed Matter Physics
Surfaces, Coatings and Films
Surfaces and Interfaces

Keywords

Cd Zn Te
Close-spaced sublimation
Photodetector
ZnO

Access to Document

10.1016/j.apsusc.2017.10.023

Cite this

@article{cc82d368719a489bacd622742d1f2f0c,

title = "Cd 1-x Zn x Te photodetectors with transparent conductive ZnO contacts",

abstract = " High quality Cd 1-x Zn x Te (CZT) films were prepared using the close-spaced sublimation (CSS) technique. CZT film UV (ultraviolet) photodetectors were fabricated with B and Ga co-doped ZnO (BGZO) transparent conductive interdigitated contacts. The contact properties of BGZO/CZT were investigated by the transmission line model (TLM). The results indicate that a good ohmic contact is formed between BGZO and CZT with a very low contact resistivity of about 0.26 Ω·cm 2 . Compared with CZT photodetectors with Au contacts, the detectors with BGZO contacts show a higher value of UV photo response.",

keywords = "Cd Zn Te, Close-spaced sublimation, Photodetector, ZnO",

author = "Ke Tang and Jian Huang and Yuanxi Lu and Yan Hu and Yibin Shen and Jijun Zhang and Qingmiao Gu and Linjun Wang and Yicheng Lu",

note = "Publisher Copyright: {\textcopyright} 2017 Elsevier B.V.",

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doi = "10.1016/j.apsusc.2017.10.023",

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T1 - Cd 1-x Zn x Te photodetectors with transparent conductive ZnO contacts

AU - Tang, Ke

AU - Huang, Jian

AU - Lu, Yuanxi

AU - Hu, Yan

AU - Shen, Yibin

AU - Zhang, Jijun

AU - Gu, Qingmiao

AU - Wang, Linjun

AU - Lu, Yicheng

PY - 2018/3/1

Y1 - 2018/3/1

N2 - High quality Cd 1-x Zn x Te (CZT) films were prepared using the close-spaced sublimation (CSS) technique. CZT film UV (ultraviolet) photodetectors were fabricated with B and Ga co-doped ZnO (BGZO) transparent conductive interdigitated contacts. The contact properties of BGZO/CZT were investigated by the transmission line model (TLM). The results indicate that a good ohmic contact is formed between BGZO and CZT with a very low contact resistivity of about 0.26 Ω·cm 2 . Compared with CZT photodetectors with Au contacts, the detectors with BGZO contacts show a higher value of UV photo response.

AB - High quality Cd 1-x Zn x Te (CZT) films were prepared using the close-spaced sublimation (CSS) technique. CZT film UV (ultraviolet) photodetectors were fabricated with B and Ga co-doped ZnO (BGZO) transparent conductive interdigitated contacts. The contact properties of BGZO/CZT were investigated by the transmission line model (TLM). The results indicate that a good ohmic contact is formed between BGZO and CZT with a very low contact resistivity of about 0.26 Ω·cm 2 . Compared with CZT photodetectors with Au contacts, the detectors with BGZO contacts show a higher value of UV photo response.

KW - Cd Zn Te

KW - Close-spaced sublimation

KW - Photodetector

KW - ZnO

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JO - Applied Surface Science

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