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首页> 外文期刊>Japanese journal of applied physics >Infrared photoresponse of oxidized carbon nanohorns: PSS composite films
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Infrared photoresponse of oxidized carbon nanohorns: PSS composite films

机译：红外光响应的氧化碳纳米：PSS复合膜

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摘要

Carbon nanohorn (CNH) is derivative from single-walled carbon nanotube (SWCNT) with a horn-like structure. Since hole-opened CNH aggregates (CNHoxs) are dispersible even in water, it can be promising materials for large scale optoelectronic devices fabricated with coating technique. We prepared CNHoxs-PSS composite films and studied its optoelectronic properties. We found good rectifying behaviors at the junction between CNHoxs-PSS and ITO. Significant photoresponse was observed when infrared (IR) light pulse was irradiated to the junction. Peak intensity of the photosignal increased with increment of bias voltage applied at the junction, while relaxation time decreased. When using thick cast films, even for zero bias, we observed significant photosignal, which increased proportionally with IR light intensity. Carrier mobility was estimated to be 3.5 x 10(-9) cm(2) V-1 s(-1) from the bias dependence of relaxation time of photosignal for thin spin coated films. This low value is ascribable to the hopping conduction between CNHoxs dispersed in PSS matrix. (C) 2020 The Japan Society of Applied Physics
机译：碳纳米（CNH）是由具有喇叭形结构的单壁碳纳米管（SWCNT）衍生物。由于孔开放的CNH聚集体（CNHOX）即使在水中也是可分散的，因此它可能是用涂布技术制造的大型光电器件的有希望的材料。我们制备了CNHOXS-PSS复合膜，并研究了其光电性能。我们在CNHOXS-PSS和ITO之间的交界处找到了良好的整顿行为。当红外线（IR）光脉冲被照射到结时，观察到显着的光孔。光照的峰强度随着在结时施加的偏置电压的增量而增加，而放松时间减小。当使用厚铸膜时，即使对于零偏压，我们也观察到显着的光相比，这与IR光强度成比例地增加。载体迁移率估计为3.5×10（ - 9 )cm（2）v-1s（2）厘米（-1），来自光旋涂膜的弛豫时间的弛豫时间偏差依赖性。这种低值易于分散在PSS基质中的CNHOX之间的跳跃传导。 （c）2020日本应用物理学会

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  • 来源
    《Japanese journal of applied physics》 |2020年第sg期|SGGK01.1-SGGK01.5|共5页
  • 作者

    Obara Ryu; Chonan Yasunori; Komiyama Takao; Kotani Koji; Yamaguchi Hiroyuki; Momoi Yuichi;

  • 作者单位

    Akita Prefectural Univ Dept Elect & Informat Syst Akita 0150055 Japan;

    Akita Prefectural Univ Fac Syst Sci & Technol Akita 0150055 Japan;

    Akita Prefectural Univ Fac Syst Sci & Technol Akita 0150055 Japan;

    Akita Prefectural Univ Fac Syst Sci & Technol Akita 0150055 Japan;

    Akita Prefectural Univ Fac Syst Sci & Technol Akita 0150055 Japan;

    Toyo Corp Takatsuki Osaka 5690805 Japan;

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