Carrier transport and photodetection in heterojunction photodiodes comprising n-type silicon and p-type ultrananocrystalline diamond/hydrogenated amorphous carbon composite films

Shinya Ohmagari, Takanori Hanada, Yuki Katamune, Sausan Al-Riyami, Tsuyoshi Yoshitake

    研究成果: Contribution to journalReview article査読

    11 被引用数 (Scopus)

    抄録

    Carrier transport and photodetection in heterojunction photodiodes comprising n-type Si substrates and p-type B-doped ultrananocrystalline diamond/hydrogenated amorphous carbon composite (UNCD/a-C:H) films were investigated. Their transport model was discussed mainly on the basis of electrical measurements. It was revealed that an a-C:H matrix in UNCD/a-C:H would predominantly be responsible for carrier transportation in the photodiodes. The photodiodes exhibited high external quantum efficiencies of 72 and 23% under 254 and 365nm UV illuminations, respectively. These superior responses might be attributable to the photocarrier generation in UNCD grains accompanied by an efficient carrier transport to the a-C:H matrix.

    本文言語英語
    論文番号050307
    ジャーナルJapanese journal of applied physics
    53
    5
    DOI
    出版ステータス出版済み - 5 2014

    All Science Journal Classification (ASJC) codes

    • 工学(全般)
    • 物理学および天文学(全般)

    フィンガープリント

    「Carrier transport and photodetection in heterojunction photodiodes comprising n-type silicon and p-type ultrananocrystalline diamond/hydrogenated amorphous carbon composite films」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

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