Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 726, Issue -, Pages 214-220Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2017.07.336
Keywords
Cadmium selenide; Nanotubes; Single-crystalline; Physical vapor deposition; Photodetector
Categories
Funding
- National Natural Science Foundation of China [U1631110, 61575145]
- Fundamental Research Funds for the Central Universities [413000008]
Ask authors/readers for more resources
Cadmium selenide (CdSe) nanotubes have been successfully synthesized via one-step thermal evaporation process without using any templates. The morphology and crystalline structure of the CdSe nanotubes have been characterized, demonstrating the CdSe nanotubes with novel hollow tubular architecture are single-crystalline and grow along the [0002] direction. Furthermore, the single-crystalline CdSe nanotubes are first utilized as active layer to fabricate a metal-semiconductor-metal (MSM) nanostructured photodetector with Ag nanowires network as transparent electrodes. The CdSe nanotubes-based photodetector exhibits enhanced performance among CdSe nanostructure- and CdSe nanostructure heterostructures-based photodetectors reported so far, such as high photoresponsivity (R-lambda approximate to 76 A/W), large photoconductive gain (G(similar to)190) and low operation voltages (1 V). The enhanced performance can be attributed to the perfect hollow tubular architecture of CdSe nanotubes and the Schottky contacts between Ag and CdSe. In addition, the comparative studies of the CdSe nanotubes- based photodetetor in air and in vacuum are investigated. (C) 2017 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available