Solution-processed semitransparent p-n graphene oxide:CNT/ZnO heterojunction diodes for visible-blind UV sensors
✍ Scribed by Cuong, Tran Viet ;Tien, Huynh Ngoc ;Luan, Van Hoang ;Pham, Viet Hung ;Chung, Jin Suk ;Yoo, Dae Hwang ;Hahn, Sung Hong ;Koo, Kee-Kahb ;Kohl, Paul A. ;Hur, Seung Hyun ;Kim, Eui Jung
- Book ID
- 105366281
- Publisher
- John Wiley and Sons
- Year
- 2011
- Tongue
- English
- Weight
- 422 KB
- Volume
- 208
- Category
- Article
- ISSN
- 0031-8965
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✦ Synopsis
Abstract
A high quality transparent p–n heterojunction device comprised of 1D zinc oxide (ZnO) nanorods (NRs) and an ultrathin 2D graphene oxide (GO):carbon nanotube (CNT) hybrid film was fabricated through a solution process. The turn on voltage and ideality factor of the device were 1.5 V and 6.1, respectively. Optical measurements revealed that the UV absorption of the ZnO NRs increased after a GO:CNT hybrid film was spray‐coated onto the NRs. As a result, the device exhibited a high response to UV illumination. The fabricated diode displayed high rectifying characteristics and excellent performance as a visible‐blind UV sensor.