| 학회 |
한국화학공학회 |
| 학술대회 |
2011년 봄 (04/27 ~ 04/29, 창원컨벤션센터) |
| 권호 |
17권 1호, p.739 |
| 발표분야 |
재료 |
| 제목 |
Solution-processed semitransparent p-n GO:CNT/ZnO heterojunction diodes for visible-blind UV sensors |
| 초록 |
Ahigh qualitytransparent p-n heterojunctiondiode composed of a vertical array of 1-D ZnO NRs and a very thin 2-D GO:CNT hybrid film was fabricated through a solution based process.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 p-n diode displayed high rectifying characteristics and acted as an excellent visible-blind UV sensor. The turn on voltage and ideality factor of the diode were 1.5 V and 6.1, respectively. From the results of this study, it is expected that a heterostructure of 1-D arrays and 2-D carbon-based nanomaterials can provide new design opportunities in transparent optoelectronic devices. Further investigation on the effect of GO:CNT ratio and aspect ratio of ZnO NRs is required to optimize the device performance. |
| 저자 |
허승현, 김의정, Tran Viet Cuong, Huynh Ngoc Tien, Van Hoang Luan
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| 소속 |
울산대 |
| 키워드 |
UV sensor; Carbon based material; ZnO; Heterojunction
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| E-Mail |
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| 원문파일 |
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