Synthesis and characterization of NiO-doped p-type AZO films fabricated by sol-gel method

Lei Li; K. S. Hui; K. N. Hui; H. W. Park; D. H. Hwang; Shinho Cho; S. K. Lee; P. K. Song; Y. R. Cho; Heesoo Lee; Y. G. Son; W. Zhou

doi:10.1016/j.matlet.2011.10.089

Synthesis and characterization of NiO-doped p-type AZO films fabricated by sol-gel method

Lei Li, K. S. Hui, K. N. Hui, H. W. Park, D. H. Hwang, Shinho Cho, S. K. Lee, P. K. Song, Y. R. Cho, Heesoo Lee, Y. G. Son, W. Zhou

Centre for Functional Photonics

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

28 Citations (Scopus)

Abstract

NiO-doped p-type AZO (Al/Zn = 1.5 at.%) films were synthesized on glass substrates using a simple and low cost sol-gel solution method. p-type conductivity could be achieved by annealing the NiO:AZO films in N ₂/H ₂ forming gas at 550 °C. The real Al/Zn and Ni/Zn ratio, hole concentration, hole mobility and resistivity of the 1.5-2 mol% NiO-doped AZO films were 0.26-0.29, 0.06-0.09, 3.15 × 10 ¹⁸-2.18 × 10 ²⁰ cm ^{- 3}, 2.33-12.76 cm ²/Vs, and 2.39 × 10 ^{- 1}-1.24 × 10 ^{- 2} ω cm, respectively. I-V measurements of the p-n junction (ITO/NiO:AZO) revealed rectifying I-V characteristics, confirming that these NiO:AZO films exhibit p-type conductivity. This study opens the possibility of developing highly conductive p-type composite transparent conducting oxides for optoelectronic devices. © 2011 Elsevier B.V. All rights reserved.

Original language	English
Pages (from-to)	283-286
Journal	Materials Letters
Volume	68
DOIs	https://doi.org/10.1016/j.matlet.2011.10.089
Publication status	Published - 1 Feb 2012

Research Keywords

Al-doped ZnO
NiO
p-type
Sol-gel method
Transparent conducting oxide

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@article{244d90893fbb437bae4617aa8d820f2f,

title = "Synthesis and characterization of NiO-doped p-type AZO films fabricated by sol-gel method",

abstract = "NiO-doped p-type AZO (Al/Zn = 1.5 at.%) films were synthesized on glass substrates using a simple and low cost sol-gel solution method. p-type conductivity could be achieved by annealing the NiO:AZO films in N 2/H 2 forming gas at 550 °C. The real Al/Zn and Ni/Zn ratio, hole concentration, hole mobility and resistivity of the 1.5-2 mol% NiO-doped AZO films were 0.26-0.29, 0.06-0.09, 3.15 × 10 18-2.18 × 10 20 cm - 3, 2.33-12.76 cm 2/Vs, and 2.39 × 10 - 1-1.24 × 10 - 2 ω cm, respectively. I-V measurements of the p-n junction (ITO/NiO:AZO) revealed rectifying I-V characteristics, confirming that these NiO:AZO films exhibit p-type conductivity. This study opens the possibility of developing highly conductive p-type composite transparent conducting oxides for optoelectronic devices. {\textcopyright} 2011 Elsevier B.V. All rights reserved.",

keywords = "Al-doped ZnO, NiO, p-type, Sol-gel method, Transparent conducting oxide",

author = "Lei Li and Hui, {K. S.} and Hui, {K. N.} and Park, {H. W.} and Hwang, {D. H.} and Shinho Cho and Lee, {S. K.} and Song, {P. K.} and Cho, {Y. R.} and Heesoo Lee and Son, {Y. G.} and W. Zhou",

year = "2012",

month = feb,

day = "1",

doi = "10.1016/j.matlet.2011.10.089",

language = "English",

volume = "68",

pages = "283--286",

journal = "Materials Letters",

issn = "0167-577X",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Synthesis and characterization of NiO-doped p-type AZO films fabricated by sol-gel method

AU - Li, Lei

AU - Hui, K. S.

AU - Hui, K. N.

AU - Park, H. W.

AU - Hwang, D. H.

AU - Cho, Shinho

AU - Lee, S. K.

AU - Song, P. K.

AU - Cho, Y. R.

AU - Lee, Heesoo

AU - Son, Y. G.

AU - Zhou, W.

PY - 2012/2/1

Y1 - 2012/2/1

N2 - NiO-doped p-type AZO (Al/Zn = 1.5 at.%) films were synthesized on glass substrates using a simple and low cost sol-gel solution method. p-type conductivity could be achieved by annealing the NiO:AZO films in N 2/H 2 forming gas at 550 °C. The real Al/Zn and Ni/Zn ratio, hole concentration, hole mobility and resistivity of the 1.5-2 mol% NiO-doped AZO films were 0.26-0.29, 0.06-0.09, 3.15 × 10 18-2.18 × 10 20 cm - 3, 2.33-12.76 cm 2/Vs, and 2.39 × 10 - 1-1.24 × 10 - 2 ω cm, respectively. I-V measurements of the p-n junction (ITO/NiO:AZO) revealed rectifying I-V characteristics, confirming that these NiO:AZO films exhibit p-type conductivity. This study opens the possibility of developing highly conductive p-type composite transparent conducting oxides for optoelectronic devices. © 2011 Elsevier B.V. All rights reserved.

AB - NiO-doped p-type AZO (Al/Zn = 1.5 at.%) films were synthesized on glass substrates using a simple and low cost sol-gel solution method. p-type conductivity could be achieved by annealing the NiO:AZO films in N 2/H 2 forming gas at 550 °C. The real Al/Zn and Ni/Zn ratio, hole concentration, hole mobility and resistivity of the 1.5-2 mol% NiO-doped AZO films were 0.26-0.29, 0.06-0.09, 3.15 × 10 18-2.18 × 10 20 cm - 3, 2.33-12.76 cm 2/Vs, and 2.39 × 10 - 1-1.24 × 10 - 2 ω cm, respectively. I-V measurements of the p-n junction (ITO/NiO:AZO) revealed rectifying I-V characteristics, confirming that these NiO:AZO films exhibit p-type conductivity. This study opens the possibility of developing highly conductive p-type composite transparent conducting oxides for optoelectronic devices. © 2011 Elsevier B.V. All rights reserved.

KW - Al-doped ZnO

KW - NiO

KW - p-type

KW - Sol-gel method

KW - Transparent conducting oxide

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UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-81255166208&origin=recordpage

U2 - 10.1016/j.matlet.2011.10.089

DO - 10.1016/j.matlet.2011.10.089

M3 - RGC 21 - Publication in refereed journal

SN - 0167-577X

VL - 68

SP - 283

EP - 286

JO - Materials Letters

JF - Materials Letters

ER -

Synthesis and characterization of NiO-doped p-type AZO films fabricated by sol-gel method

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