We demonstrate a near-infrared photodetector that consists of a thin film of the J-aggregating cyanine dye, U3, and transparent metal-oxide charge transport layers. The high absorption coefficient of the U3 film, combined with the use of a reflective anode and optical spacer layer, results in a zero-bias external quantum efficiency of 16.1 ± 0.1% (λ = 756 nm) for a device containing an 8.1 ± 0.3 nm-thick U3 film. The specific detectivity (D*) and response speed (f [subscript 3 dB]) of a fully optimized device are measured to be (4.3 ± 0.1) × 10[superscript 11] cm Hz[superscript 1/2] W[superscript −1] and 92 kHz, respectively.
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机译：我们展示了一种近红外光电探测器，由J-聚集的花青染料，U3和透明金属氧化物电荷输送层的薄膜组成。 U3膜的高吸收系数与使用反射阳极和光学间隔层相结合，导致含有8.1±0.3的装置的零偏置外部量子效率为16.1±0.1％（λ= 756nm） NM厚的U3膜。测量完全优化器件的特定探测（D *）和响应速度（F [下标3dB]）是（4.3±0.1）×10 [上标11] CM Hz [上标1/2] W [上标 - 分别为1]和92 kHz。
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