P3HT-based visible-light organic photodetectors using PEI/PAA multilayers as a p-type buffer layer

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P3HT-based visible-light organic photodetectors using PEI/PAA multilayers as a p-type buffer layer

机译：基于P3HT的可见光有机光电探测器，使用PEI / PAA多层作为p型缓冲层

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A low leakage current is critical for achieving organic photodetectors (OPDs) with high detectivity. The insertion of buffer layers is an effective approach for reducing the reverse-biased leakage current. In this study, polyelectrolyte multilayers comprising polyethyleneimine (PEI) and polyacrylic acid (PAA) were introduced by a spin-assisted layer-by-layer technique into an OPD as a p-type buffer layer. Although PEI/PAA multilayers are insulators, when used as a buffer layer in our device, they suppressed the leakage current and also provided a high photocurrent due to the light-assisted tunneling effect. The prepared device configuration was ITO/(PEI/PAA)(2)/P3HT:PC60BM/Yb/Al. The performances of the OPDs were investigated by measuring the current-voltage characteristics, external quantum efficiency, and transient photocurrent. In addition, the operating mechanism of the OPDs was confirmed by impedance analysis. The device comprising (PEI/PAA)(2) showed a specific detectivity of 3.11 x 10(12) Jones and a bandwidth of 103.2 kHz at -1 V and 525 nm. This performance is a numerical value that can be used in devices such as a line scan camera. In addition, because this device is fabricated by a low-temperature solution process, flexible and large-area substrates can be used.

机译：低漏电流对于实现具有高探测性的有机光电探测器（OPDS）至关重要。缓冲层的插入是用于减小反向偏置漏电流的有效方法。在该研究中，将包含聚乙烯亚胺（PEI）和聚丙烯酸（PAA）的聚电解质多层通过旋转辅助层 - 逐层技术引入OPD作为p型缓冲层。虽然PEI / PAA多层是绝缘体，但是当在我们的装置中用作缓冲层时，它们抑制了漏电流，并且由于光辅助隧道效应，也提供了高光电流。制备的装置配置是ITO /（PEI / PAA）（2）/ P3HT：PC60BM / YB / Al。通过测量电流 - 电压特性，外部量子效率和瞬态光电流来研究OPDS的性能。此外，通过阻抗分析证实了OPD的操作机制。包括（PEI / PAA）（2）的装置显示出3.11×10（12）琼斯的特定检测率和103.2kHz的带宽为-1V和525nm。这种性能是一种数值，可用于诸如线路扫描相机的设备中。另外，由于该装置由低温溶液工艺制造，所以可以使用柔性和大面积基板。

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《RSC Advances》 |2019年第64期|共8页
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1. P3HT-based visible-light organic photodetectors using PEI/PAA multilayers as a p-type buffer layer [J] . RSC Advances . 2019,第64期

机译：基于P3HT的可见光有机光电探测器，使用PEI / PAA多层作为p型缓冲层
2. Reduction of the dark current in a P3HT-based organic photodiode with a ytterbium-fluoride buffer layer for electron transport [J] . Lim Seong Bin, Ji Chan Hyuk, Kim Kee Tae, Journal of the Korean Physical Society . 2016,第3期

机译：具有氟化for缓冲层的P3HT基有机光电二极管中暗电流的减少，用于电子传输
3. Enhanced corrosion protective PANI-PAA/PEI multilayer composite coatings for 316SS by spin coating technique [J] . Junaid Ali Syed, Hongbin Lu, Shaochun Tang, Applied Surface Science . 2015,第jana15期

机译：旋涂技术增强的316SS防腐PANI-PAA / PEI多层复合涂层
4. Fabrication of Crack-Free Metal-Semiconductor-Metal Ultraviolet Photodetectors on Si (111) Substrates Based on Novel AlN/AlGaN Buffer Multilayer Scheme [C] . S. P. Chang, R. W. Chuang, S. J. Chang State-of-the-Art Program on Compound Semiconductors . 2007

机译：基于新型AlN / AlGaN缓冲液多层方案，在Si（111）基板上的无裂缝金属 - 半导体 - 金属紫外光探测器的制造
5. Layer-by-layer deposition of grafted PHEMA-g-PAA/PAH polyelectrolyte multilayer films and lysozyme binding. [D] . Ma, Yiding. 2011

机译：接枝PHEMA-g-PAA / PAH聚电解质多层膜的逐层沉积和溶菌酶结合。
6. Novel Visible-Light Photodetector Based on Two-DimensionalConfined Electron Donor–Acceptor Co-Assembled Layered DoubleHydroxide Ultrathin Films [O] . Shufang Zheng, Jun Lu, *, 2016

机译：基于二维的新型可见光光电探测器受限电子供体-受体共组装双层氢氧化物超薄膜
7. P3HT-based visible-light organic photodetectors using PEI/PAA multilayers as a p-type buffer layer [O] . Chan Hyuk Ji, Seon Ju Lee, Se Young Oh 2019

机译：基于P3HT的可见光有机光电探测器，使用PEI / PAA多层作为p型缓冲层

P3HT-based visible-light organic photodetectors using PEI/PAA multilayers as a p-type buffer layer

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