RADIATION-DAMAGE STUDY OF POLYCRYSTALLINE CVD AND NATURAL TYPE-IIA DIAMONDS USING RAMAN AND PHOTOLUMINESCENCE SPECTROSCOPIES

Authors
HAN S PRUSSIN SG AGER JW PAN LS KANIA DR LANE SM WAGNER RS
Citation
S. Han et al., RADIATION-DAMAGE STUDY OF POLYCRYSTALLINE CVD AND NATURAL TYPE-IIA DIAMONDS USING RAMAN AND PHOTOLUMINESCENCE SPECTROSCOPIES, Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms, 80-1, 1993, pp. 1446-1450
Citations number
14
Categorie Soggetti
Physics, Nuclear","Nuclear Sciences & Tecnology","Instument & Instrumentation
Journal title
Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms → ACNP
ISSN journal
0168583X
Volume
80-1
Year of publication
1993
Part
2
Pages
1446 - 1450
Database
ISI
SICI code
0168-583X(1993)80-1:<1446:RSOPCA>2.0.ZU;2-R
Abstract
By employing Raman and photoluminescence spectroscopies, and transient photoconductivity, we have studied the damage caused by 5 MeV alpha-p article bombardment on both CVD and type IIa natural diamonds over the fluence range of 1.6 x 10(12) cm-2 to 8 x 10(15) cm-2. The H3 PL peak at 2.46 eV is seen and it dominates the Raman/PL spectra for fluences greater than 1 x 10(14) cm-2. By introducing additional trapping/reco mbination centers into the diamond films via atomic displacements, dra matic changes in electrical properties are observed. The effects of po lycrystallinity on radiation damage in CVD diamond relative to single- crystal, natural diamond are discussed.