Investigation of p-CuO/n-Cu1-xInxO core/shell nanowire structure performance in UV photodetectors
- Title
- Investigation of p-CuO/n-Cu1-xInxO core/shell nanowire structure performance in UV photodetectors
- Author
- 박진섭
- Keywords
- CuO NWs; CuInO nanocomposites; Core/shell; Pn junction; Photodetector
- Issue Date
- 2017-12
- Publisher
- ELSEVIER SCIENCE SA
- Citation
- JOURNAL OF ALLOYS AND COMPOUNDS, v. 728, page. 1180-1185
- Abstract
- We report on the formation of a pn junction through the use of CuO/Cu1-xInxO core/shell nanowire (NW) structures for application in photodetectors. The CuO NWs arrays were prepared by simple heat-treatment of Cu foil at 500 degrees C in ambient air in a furnace. The Cu1-xInxO nanocomposites synthesized by reflux condensation were drop-casted onto prepared p-CuO NWs arrays to form a core/shell pn junction. Investigation of Cu1-xInxO nanocomposites containing differing amounts of In2O3 (from pure CuO nanocomposites to nanocomposites including 80% In2O3) exhibits the changed electrical polarity that varies from p-type to n-type. Following the formation of the indium tin oxide (ITO) electrode on the Cu1-xInxO shell surface, the observed current-voltage (I-V) curves clearly showed typical rectifying p-n diode characteristics. Our suggested p-n heterojunction yielded a 3.48-fold increase in photocurrent level upon Xe lamp illumination when compared with current in the dark state. Additionally, the fabricated core/shell p-n junction exhibited a photoresponsivity of 0.045 A/W at 374 nm.
- URI
- https://www.sciencedirect.com/science/article/abs/pii/S0925838817331092?via%3Dihubhttps://repository.hanyang.ac.kr/handle/20.500.11754/116611
- ISSN
- 0925-8388; 1873-4669
- DOI
- 10.1016/j.jallcom.2017.09.071
- Appears in Collections:
- COLLEGE OF ENGINEERING[S](공과대학) > ELECTRONIC ENGINEERING(융합전자공학부) > Articles
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