Ho Wen-Jeng, Su Shih-Ya, Lee Yi-Yu, Syu Hong-Jhang, Lin Ching-Fuh
Department of Electro-Optical Engineering, National Taipei University of Technology, No. 1, Section 3, Zhongxial East Road, Taipei 10608, Taiwan.
Graduate Institute of Photonics and Optoelectronics, National Taiwan University, No. 1, Section 4, Roosevelt Road, Taipei 10617, Taiwan.
Materials (Basel). 2015 Sep 25;8(10):6668-6676. doi: 10.3390/ma8105330.
Performances of textured crystalline-silicon (c-Si) solar cells enhanced by silver nanoparticles (Ag-NPs) and indium nanoparticles (In-NPs) plasmonic effects are experimentally demonstrated and compared. Plasmonic nanoparticles integrated into textured c-Si solar cells can further increase the absorption and enhance the short-circuit current density () of the solar cell. To examine the profile of the proposed metallic particles, the average diameter and coverage of the In-NPs (Ag-NPs) at 17.7 nm (19.07 nm) and 30.5% (35.1%), respectively, were obtained using scanning electron microscopy. Optical reflectance and external quantum efficiency response were used to measure plasmonic light scattering at various wavelengths. Compared to a bare reference cell, the application of In-NPs increased the of the cells by 8.64% (from 30.32 to 32.94 mA/cm²), whereas the application of Ag-NPs led to an increase of 4.71% (from 30.32 to 31.75 mA/cm²). The conversion efficiency of cells with embedded In-NPs (14.85%) exceeded that of cells with embedded Ag-NPs (14.32%), which can be attributed to the broadband plasmonic light scattering of the In-NPs.
通过实验证明并比较了银纳米颗粒（Ag-NPs）和铟纳米颗粒（In-NPs）的等离子体效应增强的织构化晶体硅（c-Si）太阳能电池的性能。集成到织构化c-Si太阳能电池中的等离子体纳米颗粒可以进一步增加吸收并提高太阳能电池的短路电流密度（）。为了研究所提出的金属颗粒的轮廓，使用扫描电子显微镜分别获得了平均直径为17.7 nm（19.07 nm）、覆盖率为30.5%（35.1%）的In-NPs（Ag-NPs）的平均直径和覆盖率。利用光学反射率和外量子效率响应来测量不同波长下的等离子体光散射。与裸参比电池相比，In-NPs的应用使电池的短路电流密度增加了8.64%（从30.32增加到32.94 mA/cm²），而Ag-NPs的应用使短路电流密度增加了4.71%（从30.32增加到31.75 mA/cm²）。嵌入In-NPs的电池的转换效率（14.85%）超过了嵌入Ag-NPs的电池的转换效率（14.32%），这可归因于In-NPs的宽带等离子体光散射。
