Tedde Sandro F, Kern Johannes, Sterzl Tobias, Fürst Jens, Lugli Paolo, Hayden Oliver
Siemens AG, Corporate Technology, CT MM1, Gunther-Scharowsky-Strasse 1, 91058 Erlangen, Germany.
Nano Lett. 2009 Mar;9(3):980-3. doi: 10.1021/nl803386y.
Solution-processed organic diodes based on bulk heterojunctions are attractive for large area photodetection. We report a general approach for fully spray-coated organic photodiodes with outstanding characteristics in comparison to bladed or spin-coated devices. Despite the high surface roughness and the less defined morphology of the spray-deposited organic layers, we observe organic photodetectors with responsivities of 0.36 A/W and noise equivalent powers of 0.2 pW/H(1/2) in the visible spectrum at high reverse biases of -5 V. Furthermore, we demonstrate device lifetimes beyond 1 year as well as superior yield and reproducibilties for the dark current and photocurrent densities.
基于体异质结的溶液处理有机二极管对于大面积光电探测具有吸引力。我们报道了一种全喷涂有机光电二极管的通用方法，与刮涂或旋涂器件相比，该方法具有出色的特性。尽管喷涂沉积的有机层表面粗糙度高且形态不太明确，但我们观察到在-5 V的高反向偏压下，有机光电探测器在可见光谱中的响应度为0.36 A/W，噪声等效功率为0.2 pW/Hz(1/2)。此外，我们证明了器件寿命超过1年，并且暗电流和光电流密度具有优异的成品率和可重复性。
