Investigation of a gold quantum dot/plasmonic gold nanoparticle system for improvement of organic solar cells.
Investigation of a gold quantum dot/plasmonic gold nanoparticle system for improvement of organic solar cells.
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DOI：
10.1039/c8na00119g
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发表时间：
2019-02-12
影响因子：
4.7
通讯作者：
Baba, Akira
中科院分区：
文献类型：
--
作者：
Phetsang, Sopit;Phengdaam, Apichat;Lertvachirapaiboon, Chutiparn;Ishikawa, Ryousuke;Shinbo, Kazunari;Kato, Keizo;Mungkornasawakul, Pitchaya;Ounnunkad, Kontad;Baba, Akira
光管理允许增强有机太阳能电池（OSC）中的光收集。在本文中，我们描述了增强的金量子点（AuQD）和局部表面等离子体激元的协同效应的OSC的调查，通过共混的AuQD层和等离子体金纳米粒子（AuNPs）的空穴传输层（HTL）。在这项研究中，不同的金量子点发射蓝色，绿色，红色荧光进行了检查。证明OSC包含ITO涂覆的玻璃基底/AuQD/PEDOT：PSS：AuNP/P3 HT：PCBM/Al结构。的紫外-可见光谱，电流密度与电压特性，阻抗谱，和入射光-电流效率的制造设备进行了评估。结果表明，与参考OSC相比，由于短路电流密度（Jsc）和功率转换效率（PCE）的增加，实现了光伏效率的提高。发现由发绿光的AuQD层和含有AuNP的HTL组成的OSC具有最佳的协同效应，导致PCE的最高改善为13.0%。这表明所开发的器件中光捕获的增加是由UV区域中的扩展光吸收引起的，所述UV区域中的扩展光吸收由AuQD层的吸收和从AuQD层到光活性层的可见荧光的发射引起。此外，金纳米粒子的局部表面等离子体效应，这也有助于增加在所提出的OSC中的光捕获，增强了金量子点的效果。通过协同金量子点/等离子体金纳米颗粒体系的作用，提高了有机太阳能电池的性能。
Light management allows enhancement of light harvesting in organic solar cells (OSCs). In this paper, we describe the investigation of OSCs enhanced by the synergistic effect of gold quantum dots (AuQDs) and localized surface plasmons, obtained by blending a AuQD layer and plasmonic gold nanoparticles (AuNPs) in a hole-transport layer (HTL). Different AuQDs emitting blue, green, and red fluorescence were examined in this study. The OSCs were demonstrated to comprise an ITO-coated glass substrate/AuQDs/PEDOT:PSS:AuNPs/P3HT:PCBM/Al structure. The UV-visible spectra, current density versus voltage characteristics, impedance spectra, and incident photon-to-current efficiency of the fabricated devices were evaluated. The results showed an enhancement of photovoltaic efficiency achieved as a result of the increase in short-circuit current density (Jsc) and power conversion efficiency (PCE) in comparison with those of the reference OSCs. The best synergistic effect was found with OSCs consisting of a green-emitting AuQD layer and a HTL containing AuNPs, resulting in the highest improvement in PCE of 13.0%. This indicated that the increase in light harvesting in the developed devices was induced by extended light absorption in the UV region resulting from absorption by the AuQD layer and emission of visible fluorescence from the AuQD layer to the photoactive layers. Moreover, the localized surface plasmon effect of AuNPs, which also contributed to an increase in light trapping in the proposed OSCs, was enhanced by the effect of the AuQDs. The performance of organic solar cells was improved by the effect of a synergistic gold quantum dot/plasmonic gold nanoparticle system.
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影响因子：
6.7
作者：
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通讯作者：
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