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Paper Abstract and Keywords
Presentation 2022-11-24 10:05
Application of Chemical Bath Deposited ZnO Nanorods to UV Light Detectors and Influence of CBD Solution Concentration on Their Device Properties
Taichi Fujikawa, Tomoaki Terasako (Ehime Univ.), Masakazu Yagi (Natl. Inst. Technol., Kagawa Coll.), Tetsuya Yamamoto (Kochi Univ. Technol.) ED2022-24 CPM2022-49 LQE2022-57
Abstract (in Japanese) (See Japanese page) 
(in English) PEDOT:PSS/ZnO nanorods (NRs)/GZO heterojunction UV light detectors with the ZnO NRs layers grown from the CBD solutions with the different concentration ratios of C6H12N4 (HMT) to Zn(NH3)2·6H2O (ZnNit) ([HMT]/[ZnNit]) were fabricated. The [HMT]/[ZnNit] value was changed in the range from 0.24 to 3.78. Values of diode ideal factors (n), rectification ratios (IF/IR) and potential barrier heights at the PEDOT:PSS/ZnO NRs heterointerfaces (Φb) were determined from the voltage-current (V-I) characteristics taken in a dark. The n values smaller than 2 were obtained in the [HMT]/[ZnNit] range from 0.94 to 2.83. Both the IF/IR and Φ_b increased with increasing [HMT]/[ZnNit]. The UV light detector involving the ZnO NRs layer grown from the CBD solution with [HMT]/[ZnNit]=0.94 exhibited the maximum ratio of photocurrent (PC) to dark current of 92.6. PC spectra were composed of bands with peaks at ~360 nm and ~380 nm. The intensity ratio of the 360 nm peak to the 380 nm peak (I360nm/I380nm) exhibited a maximum at [HMT]/[ZnNit]=0.94. The I360nm/I380nm value decreased along with the change in [HMT]/[ZnNit] from 0.94 towards both the lower and higher sides.
Keyword (in Japanese) (See Japanese page) 
(in English) Zinc oxide / Nanorod / PEDOT:PSS / UV light detector / / / /  
Reference Info. IEICE Tech. Rep., vol. 122, no. 272, CPM2022-49, pp. 1-4, Nov. 2022.
Paper # CPM2022-49 
Date of Issue 2022-11-17 (ED, CPM, LQE) 
ISSN Online edition: ISSN 2432-6380
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All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
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Conference Information
Committee CPM ED LQE  
Conference Date 2022-11-24 - 2022-11-25 
Place (in Japanese) (See Japanese page) 
Place (in English) Winc Aichi (Aichi Industry & Labor Center) 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To CPM 
Conference Code 2022-11-CPM-ED-LQE 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Application of Chemical Bath Deposited ZnO Nanorods to UV Light Detectors and Influence of CBD Solution Concentration on Their Device Properties 
Sub Title (in English)  
Keyword(1) Zinc oxide  
Keyword(2) Nanorod  
Keyword(3) PEDOT:PSS  
Keyword(4) UV light detector  
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1st Author's Name Taichi Fujikawa  
1st Author's Affiliation Ehime University (Ehime Univ.)
2nd Author's Name Tomoaki Terasako  
2nd Author's Affiliation Ehime University (Ehime Univ.)
3rd Author's Name Masakazu Yagi  
3rd Author's Affiliation National Institute of Technology, Kagawa College (Natl. Inst. Technol., Kagawa Coll.)
4th Author's Name Tetsuya Yamamoto  
4th Author's Affiliation Kochi University of Technology (Kochi Univ. Technol.)
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Speaker Author-2 
Date Time 2022-11-24 10:05:00 
Presentation Time 20 minutes 
Registration for CPM 
Paper # ED2022-24, CPM2022-49, LQE2022-57 
Volume (vol) vol.122 
Number (no) no.271(ED), no.272(CPM), no.273(LQE) 
Page pp.1-4 
#Pages
Date of Issue 2022-11-17 (ED, CPM, LQE) 


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