Silver Nanowire Embedded in P3HT: PCBM for High-Efficiency Hybrid Photovoltaic Device Applications
Silver Nanowire Embedded in P3HT: PCBM for High-Efficiency Hybrid Photovoltaic Device Applications
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DOI：
10.1021/nn200469d
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发表时间：
2011-04-01
期刊：
影响因子：
17.1
通讯作者：
Jin, Sung-Ho
中科院分区：
文献类型：
--
作者：
Kim, Chul-Hyun;Cha, Sang-Ho;Jin, Sung-Ho
采用体异质结的概念，系统地开发了一种高效的混合光伏器件，该器件在活性层中结合了聚（3-己基噻吩）（P3HT）、[6,6]-苯基c61 -丁酸甲酯（PCBM）和银纳米线（Ag NWs）。利用二元溶剂体系对活性层进行共混改性。此外，还改变了旋涂后的溶剂蒸发工艺，并加入了Ag - NWs，提高了混合光电器件的性能。采用P3HT和PCBM的质量比为1:7 .7，邻二氯苯和氯仿的质量比为11，在存在和不存在20 wt % Ag NWs的情况下制备了杂化光伏器件。我们还比较了嵌入在P3HT:PCBM中的Ag NWs与银纳米颗粒（Ag NPs）的光伏性能。原子力显微镜、扫描电子显微镜、透射电子显微镜、紫外可见吸收、入射光子到电流的转换效率和飞行时间测量进行了表征混合光伏器件。在100mw /cm(2)光照强度下，利用AM 1.5G太阳模拟器测量的最佳混合光伏器件的功率转换效率为3.91%。
A systematic approach has been followed in the development of a high-efficiency hybrid photovoltaic device that has a combination of poly(3-hexylthiophene) (P3HT), [6,6]-phenyl C61-butyric acid methyl ester (PCBM), and silver nanowires (Ag NWs) in the active layer using the bulk heterojunction concept. The active layer is modified by utilizing a binary solvent system for blending. In addition, the solvent evaporation process after spin-coating is changed and an Ag NWs is incorporated to Improve the performance of the hybrid photovoltaic device. Hybrid photovoltaic devices were fabricated by using a 1:0.7 weight ratio of P3HT to PCBM in a 11 weight ratio of o-dichlorobenzene and chloroform solvent mixture, in the presence and absence of 20 wt % of Ag NWs. We also compared the photovoltaic performance of Ag NWs embedded in P3HT:PCBM to that of silver nanoparticles (Ag NPs). Atomic force microscopy, scanning electron microscopy, transmittance electron microscopy, UV-visible absorption, Incident photon-to-current conversion efficiency, and time-of-flight measurements are performed in order to characterize the hybrid photovoltaic devices. The optimal hybrid photovoltaic device composed of Ag NWs generated in this effort exhibits a power conversion efficiency of 3.91%, measured by using an AM 1.5G solar simulator at 100 mW/cm(2) light illumination Intensity.