Solution-Processed Ultrasensitive Polymer Photodetectors with High External Quantum Efficiency and Detectivity

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• 作者：Xilan Liu ; Hangxing Wang ; Tingbin Yang ; Wei Zhang ; Xiong Gong
• 刊名：ACS Applied Materials & Interfaces
• 出版年：2012
• 出版时间：July 25, 2012
• 年：2012
• 卷：4
• 期：7
• 页码：3701-3705
• 全文大小：322K
• 年卷期：v.4,no.7(July 25, 2012)
• ISSN：1944-8252

文摘

Operating at room temperature, polymer photodetectors (PDs) with external quantum efficiency approximately 80%, detectivity over 10¹³ Jones, linear dynamic range over 120 dB, and dark current a few decades of nA/cm² were demonstrated. All these performance parameters were achieved by combined treatment of active layer with solvent vapor annealing and of polymer PDs with postproduction thermal annealing. These high performance parameters demonstrated that polymer PDs is comparable to or better than inorganic counterparts.

Keywords:

semiconducting polymer; photodetectors; external quantum efficiency; detectivity; dark current, solvent and thermal annealing