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首页> 外文期刊>Journal of Materials Chemistry, C. materials for optical and electronic devices >Toward high performance broad spectral hybrid organic-inorganic photodetectors based on multiple component organic bulk heterojunctions
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Toward high performance broad spectral hybrid organic-inorganic photodetectors based on multiple component organic bulk heterojunctions

机译：基于多组分有机本体异质结的高性能广谱混合有机-无机光电探测器

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Broadening the absorption bandwidth of photodetectors by incorporating multiple absorber materials to form bulk-heterojunction active layers is an attractive method of resolving the narrow absorption of organic semiconductors. Here we report the fabrication and characterization of broad spectral hybrid organic-inorganic photodetectors through an optimized multiple component organic bulk heterojunctions route. The study clearly shows that both the two-component and three-component photodetectors have ultrahigh photosensitivity and spectral uniformity of responsivity for visible to near-infrared light. Operating at room temperature, the three-component based photodetectors achieve ultrahigh photosensitivities of 30-50 A W-1 at similar to 0.1 mW incident optical power, which are almost two orders of magnitude larger than commercial Si and InGaAs photodiodes. Also, this work demonstrates that the wide variation of optical absorption of multiple component organic bulk heterojunctions will provide a strategy to fabricate facile broadband photodetectors.
机译：通过结合多种吸收剂材料以形成体异质结有源层来扩大光电探测器的吸收带宽，是解决有机半导体吸收窄的一种有吸引力的方法。在这里，我们通过优化的多组分有机体异质结路线，报道了广谱混合有机-无机光电探测器的制造和表征。该研究清楚地表明，两组分和三组分光电探测器都具有超高的光敏性和对可见光至近红外光的响应度的光谱均匀性。基于三组分的光电探测器在室温下工作，在类似于0.1 mW入射光功率的情况下，可实现30-50 A W-1的超高光敏度，这几乎比商用Si和InGaAs光电二极管大两个数量级。而且，这项工作表明，多组分有机体异质结的光吸收变化很大，将提供一种制造方便的宽带光电探测器的策略。

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