Ultrahigh Gain Polymer Photodetectors with Spectral Response from UV to Near-Infrared Using ZnO Nanoparticles as Anode Interfacial Layer

Zhou Xiaokang; Yang Dezhi; Ma Dongge; Vadim Agafonov; Ahamad Tansir; Alshehri Saad M.

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Ultrahigh Gain Polymer Photodetectors with Spectral Response from UV to Near-Infrared Using ZnO Nanoparticles as Anode Interfacial Layer

机译：使用ZnO纳米粒子作为阳极界面层，具有从紫外线到近红外光谱响应的超高增益聚合物光电探测器

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摘要

Significant increase of photocurrent upon UV light exposure is demonstrated in a narrow-bandgap polymer-based photodetector using ZnO nanoparticles as anode interfacial layer. The phenomenon is attributed to the UV light illumination induced oxygen molecules desorption from surface of ZnO nanoparticles, which reduces the electron injection barrier at the anode interface. Ultrahigh external quantum efficiency of 140 000% and extremely low gain threshold voltage of 1.5 mV are achieved in this device with 30 s UV light irradiation. The gain mechanism is explained by the fast transit and replenishment of photogenerated electrons within their lifetime, which is prolonged by the electron-only device structure, and the experiment results fit well with the proposed photoconductive model.

机译：在使用ZnO纳米粒子作为阳极界面层的基于窄带隙聚合物的光电探测器中，证明了紫外线照射后光电流的显着增加。该现象归因于紫外线照射引起的氧分子从ZnO纳米颗粒表面脱附，这减少了阳极界面处的电子注入势垒。在30 s的紫外线照射下，该器件可实现140 000％的超高外部量子效率和1.5 mV的极低增益阈值电压。增益机理可以通过光生电子在其寿命内的快速迁移和补充来解释，而纯电子器件结构可以延长光生电子的寿命，并且实验结果与所提出的光电导模型非常吻合。

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来源
《Advanced Functional Materials》 |2016年第36期|6619-6626|共8页
作者
Zhou Xiaokang; Yang Dezhi; Ma Dongge; Vadim Agafonov; Ahamad Tansir; Alshehri Saad M.;
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Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China|Univ Chinese Acad Sci, Beijing 10039, Peoples R China;

Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China|Univ Chinese Acad Sci, Beijing 10039, Peoples R China|South China Univ Technol, Inst Polymer Optoelect Mat & Devices, State Key Lab Luminescent Mat & Devices, Guangzhou 510640, Guangdong, Peoples R China;

Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China|Univ Chinese Acad Sci, Beijing 10039, Peoples R China|South China Univ Technol, Inst Polymer Optoelect Mat & Devices, State Key Lab Luminescent Mat & Devices, Guangzhou 510640, Guangdong, Peoples R China|King Saud Univ, Dept Chem, Riyadh 11451, Saudi Arabia;

Moscow Inst Phys & Technol, Dolgoprudnyi 141700, Moscow Region, Russia;

King Saud Univ, Dept Chem, Riyadh 11451, Saudi Arabia;

King Saud Univ, Dept Chem, Riyadh 11451, Saudi Arabia;

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1. Optimizing the spacing of Ag nanoparticle layers to enhance the performance of ZnO/Ag/ZnO/Ag/ZnO multilayer-structured UV photodetectors [J] . Li Meng, Zhao Man, Jiang Dayong, Sensors and Actuators, A. Physical . 2019,第期

机译：优化Ag纳米粒子层的间距，增强ZnO / Ag / ZnO / Ag / ZnO多层结构UV光电探测器的性能
2. Preparation of AZO:PDIN hybrid interlayer materials and application in high-gain polymer photodetectors with spectral response from 300 nm to 1700 nm [J] . Han Jinfeng, Yang Dezhi, Ma Dongge, Organic Electronics . 2019,第MAY期

机译：AZO：PDIN杂化中间层材料的制备及其在300nm至1700nm光谱响应的高增益聚合物光电探测器中的应用
3. A facile integration of zero (I-III-VI quantum dots) and One (single SnO_2 nanowire) dimensional nanomaterials: Fabrication of a nanocomposite photodetector with ultrahigh gain and wide spectral response [J] . Lu M.-L., Lai C.-W., Pan H.-J., Nano letters . 2013,第5期

机译：零（I-III-VI量子点）和一个（单SnO_2纳米线）尺寸纳米材料的便捷集成：具有超高增益和宽光谱响应的纳米复合光电探测器的制造
4. Improved characteristics of polymer photodetectors using phosphonic acid-based self-assembled monolayer treatment for interfacial-engineering of Ga-doped ZnO electrodes [C] . Hirotake Kajii, Yoshinori Mohri, Hiyuto Okui, International Workshop on Active-Matrix Flatpanel Displays and Devices . 2017

机译：使用基于膦酸的自组装单层处理改善聚合物光电探测器的特性，以进行Ga掺杂ZnO电极的界面工程设计
5. Excitonic gain and room-temperature UV lasing in ZnO microcrystallite thin films. [D] . Yu, Ping. 1997

机译：ZnO微晶薄膜中的激子增益和室温UV激射。
6. Low Dark-Current High Current-Gain of PVK/ZnO Nanoparticles Composite-Based UV Photodetector by PN-Heterojunction Control [O] . Sang-Won Lee, Seung-Hwan Cha, Kyung-Jae Choi, 2016

机译：PN-异质结控制的PVK / ZnO纳米粒子复合紫外光电探测器的低暗电流高电流增益
7. Copper Thiocyanate as an Anode Interfacial Layer for Efficient Near-Infrared Organic Photodetector [O] . -1

机译：硫氰酸铜作为高效近红外有机光电探测器的阳极界面层

Ultrahigh Gain Polymer Photodetectors with Spectral Response from UV to Near-Infrared Using ZnO Nanoparticles as Anode Interfacial Layer

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