@article{oai:miyazaki-u.repo.nii.ac.jp:00002780.1,
 author = {丁, 文 and 中野, 陽介 and Nakano, Yousuke and 境, 健太郎 and Sakai, Kentaro and 福山, 敦彦 and Fukuyama, Atsuhiko and 碇, 哲雄 and Ikari, Tetsuo and Ding, Wen},
 journal = {宮崎大学工学部紀要, Memoirs of Faculty of Engineering, University of Miyazaki},
 month = {Jul},
 note = {Since the optical energy gap (Eog) of the diamond-like carbon (DLC) varies over a wide range with the ratio of sp3 (diamond like) to sp2 (graphite like) bonds, it is expected to fabricate the high-efficiency multi-junction solar cells that consists of a single material. In the present study, we investigated the temperature dependence of the Eog of the DLC thin films by using the piezoelectric photothermal (PPT) and photoluminescence (PL) techniques. Because the PPT signal intensity of the present DLC thin film was expected to be proportional to its optical absorption coefficient, Eog was estimated by using a Tauc plot. The values of Eog of the 44%-sp3 ratio sample were estimated to 1.31 and 1.33 eV at 300 and 100 K, respectively. The temperature coefficient then became -6.5 × 10-5 eV/K, and was very smaller than that of Si. This implies that by using the DLC films for solar cell materials, the device performance is expected to be very stable by temperature change.},
 pages = {9--12},
 title = {PPT法とPL法を用いたダイヤモンド様炭素の光学ギャップ温度依存性の研究},
 volume = {41},
 year = {2012},
 yomi = {ナカノ, ヨウスケ and サカイ, ケンタロウ and フクヤマ, アツヒコ and イカリ, テツオ}
}