Studies of defects in diamond films and particles by luminescence and Raman spectroscopies

✍ Scribed by Lawrence H. Robins; Edward N. Farabaugh; Albert Feldman; Larry Cook

• Publisher: Elsevier Science
• Year: 1990
• Tongue: English
• Weight: 76 KB
• Volume: 28
• Category: Article
• ISSN: 0008-6223
• DOI: 10.1016/0008-6223(90)90296-b

✦ Synopsis

Diamond film8 grown under a variety of different deposition conditions have been studied by F&man scattering, cathodoluminescence, and photolumineecence spectroscopies.

The deposition condition8 that were varied are deposition time, substrate temperature, ga8 composition, and type of deposition process (hot-iilament or microwave-plssma).

Thirty-one fibII8 were examined; a gem-quality natural diamond was also studied for comparison.

Feature8 in the Baman spectrum associated with disorder increase with increaciing substrate temperature and methane concentration. These feature8 are the width of the diamond line, the intensit several half-widths from the line center), and the magnitude o P 1.