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High efficiency organic small molecule near-infrared photodetectors (NIR-PDs) based on a lead phthalocyanine/C 60 planar heterojunction are demonstrated. The NIR-PDs show a broad-band response that extends to 1100nm. The performance of the NIR-PDs is improved by using CuI as anode buffer layer. The optimized NIR-PD exhibits a response peak at about 900nm with external quantum efficiencies...
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