کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5368407 | 1388395 | 2007 | 7 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Opto-electrical properties of amorphous carbon thin film deposited from natural precursor camphor Opto-electrical properties of amorphous carbon thin film deposited from natural precursor camphor](/preview/png/5368407.png)
A simple thermal chemical vapor deposition technique is employed for the pyrolysis of a natural precursor “camphor” and deposition of carbon films on alumina substrate at higher temperatures (600-900 °C). X-ray diffraction measurement reveals the amorphous structure of these films. The carbon films properties are found to significantly vary with the deposition temperatures. At higher deposition temperature, films have shown predominately sp2-bonded carbon and therefore, higher conductivity and lower optical band gap (Tauc gap). These amorphous carbon (a-C) films are also characterized with Raman and X-ray photoelectron spectroscopy. In addition, electrical and optical properties are measured. The thermoelectric measurement shows these as-grown a-C films are p-type in nature.
Journal: Applied Surface Science - Volume 253, Issue 17, 30 June 2007, Pages 7004-7010