Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/6507
Title: Mechanism of photoconductivity in intrinsic epitaxial CVD diamond studies by photocurrent spectroscopy and photocurrent decay measurements
Authors: REMES, Zdenek 
PETERSEN, Rainer 
HAENEN, Ken 
NESLADEK, Milos 
D'OLIESLAEGER, Marc 
Issue Date: 2005
Publisher: ELSEVIER
Source: Diamond and related materials, 14(3-7). p. 556-560
Abstract: We report experimental results on photocurrent spectra and the transient decay of photocurrent in intrinsic CVD diamond films grown homoepitaxially on natural, (100) oriented, single crystal type Ila diamond substrates. The detectors fabricated from these layers were developed in the frame of the LYRA-project (the LYman-alpha RAdiometer onboard the European satellite PROBA-2) and will be used in space for UV solar monitoring. The typical photosensitivity is about 10−2 A/W at 200 nm and 10−6 A/W at 300 nm; the typical response time wel below 0.1 ms. The enhance in photosensitivity, related to defects in CVD diamond layer and accompanied by long, non-exponential tails in photocurrent transients (persistent photocurrent), is observed in some detectors. The enhancement in photosensitivity also correlates with a long effective lifetime of photo-excited carriers. New effects at about 3.8 eV and another at about 4.3 eV are observed in the photocurrent spectrum of the sample with enhanced photosensitivity.
Keywords: detectors; homoepitaxy; optical properties characterization; electrical properties characterization
Document URI: http://hdl.handle.net/1942/6507
DOI: 10.1016/j.diamond.2004.12.036
ISI #: 000229751400059
Category: A1
Type: Journal Contribution
Validations: ecoom 2006
Appears in Collections:Research publications

Show full item record

SCOPUSTM   
Citations

31
checked on Sep 2, 2020

WEB OF SCIENCETM
Citations

31
checked on May 13, 2022

Page view(s)

12
checked on May 19, 2022

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.