Performance improvement of polycrystalline diamond ultraviolet photodetectors by room-temperature plasma treatment
Tools
Tools
Tools
Wang, SG, Sellin, PJ, Lohstroh, A and Zhang, Q (2005) Performance improvement of polycrystalline diamond ultraviolet photodetectors by room-temperature plasma treatment APPL PHYS LETT, 86 (9). ? - ?. ISSN 0003-6951
![[img]](/style/images/fileicons/application_pdf.png)
| PDF 256Kb |
Abstract
Enhancement of ultraviolet (UV) photoresponsivity in chemical-vapor-deposited (CVD) diamond photodetectors was observed by posttreatment in a plasma of oxygen and carbon tetrafluoride at room temperature. This room-temperature plasma posttreatment was found to be an efficient process in suppressing the extrinsic photoresponse of CVD diamond UV photodetectors in the visible region. Nearly four orders of magnitude difference in the photoresponsivity between the UV and visible light regions were obtained. The results of photoluminescence mapping and Raman spectra indicate that this performance improvement may have resulted from the effective removal of the sp(2)-bonded carbon impurities and passivation of the silicon-vacancy defects in the diamond.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | FILMS |
| Divisions: | Faculty of Engineering and Physical Sciences > Physics > Centre for Nuclear and Radiation Physics > Nuclear Physics Group Faculty of Engineering and Physical Sciences > Physics > Centre for Nuclear and Radiation Physics > Nuclear Physics Group Faculty of Engineering and Physical Sciences > Physics Faculty of Engineering and Physical Sciences > Physics |
| ID Code: | 133 |
| Deposited By: | Mr Adam Field |
| Deposited On: | 27 May 2010 15:06 |
| Last Modified: | 15 May 2012 02:33 |
Document Downloads
Repository Staff Only: item control page