Mid-Wavelength Infrared Responsivity of Colloidal Quantum Dot/Organic Hybrid Photodetectors
Mid-Wavelength Infrared Responsivity of Colloidal Quantum Dot/Organic Hybrid Photodetectors
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胶体量子点/有机混合光电探测器的中波长红外响应度
DOI：
10.1149/09701.0109ecst
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发表时间：
2020
期刊：
影响因子：
--
通讯作者：
Ko, Dong-Kyun
中科院分区：
文献类型：
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作者：
Hafiz, Shihab Bin;Al Mahfuz, Mohammad Mostafa;Ko, Dong-Kyun
胶体量子点/有机混合材料方法为工程解决方案处理的光电探测器提供了一条途径，该光电探测器具有扩展的红外光谱响应度。我们利用 Ag2Se 胶体量子点和 [6, 6]-苯基-C61-丁酸甲酯 (PCBM) 的溶液混合物，在技术重要的中波长红外热红外区域展示了这种方法。我们报告了器件的制造及其光学、电气和光电特性。在室温下，在 5 μm 照射和 5 V 偏压下测得的响应率为 0.2 mA/W。与构成当今红外技术的单晶或外延半导体相比，本研究中展示的新型混合光电薄膜具有成本效益和更大的制造多功能性的优势。
Colloidal quantum dot/organic hybrid materials approach offer a path toward engineering solution-processed photodetectors with extended spectral responsivity in the infrared. We demonstrate this approach in the technologically important thermal infrared region of mid-wavelength infrared, utilizing a solution blend of Ag2Se colloidal quantum dots and [6, 6]-phenyl-C61-butyric acid methyl ester (PCBM). We report on the device fabrication and their optical, electrical, and optoelectronic properties. At room temperature, a responsivity of 0.2 mA/W was measured under 5 μm irradiation and 5 V bias. The new hybrid optoelectronic film demonstrated in this study brings the advantage of costeffectiveness and greater fabrication versatility than the single crystal or epitaxial semiconductors that comprise today’s infrared technologies.