Materials World Network: Development of high-efficiency photovoltaic devices for optimal performance under a broad range of spectral illumination conditions

材料世界网络：开发高效光伏器件，在广泛的光谱照明条件下实现最佳性能

• 批准号: 239013293
• 负责人: Professor Dr. Daniel M. Schaadt
• 金额: --
• 依托单位: Arbeitsgruppe Energiewandlung
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2013
• 资助国家: 德国
• 起止时间: 2012-12-31 至 2016-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/239013293?language=en
• 关键词: Materials; World; Network; Development; efficiency

We propose international collaborative effort between the University of Texas at Austin (E. T. Yu, PI) and the Clausthal University of Technology (D. M. Schaadt, German Pl) to develop materials, processing, and device technologies for high-efficiency photovoltaic devices and solar cell assemblies that can provide optimal performance under a broad range of spectral illumination conditions, as required for applications such as concentrating photovoltaics. Two main research thrusts will be pursued. First, we will investigate concepts for and band-structure engineering to realize high open circuit voltages simultaneously with high photocurrent in quantum well solar using GaAs/lnxGa1-xAs1-y-z.Sby and GaAs/InxGa1-x As1-y-z SbyNz heterostructures. These ideas will be combined with the use of sub-wavelength-scale metal/dielectric structures for longwavelength light trapping in thin-film semiconductor layers, enabling increased absorption in the quantum-well regions. Epitaxial growth and basic structural and optical materials characterization at Clausthal will be combined with heterostructure modeling and design, and device processing, and optical and electrical characterization at UT Austin to develop a comprehensive understanding of epitaxial growth, material quality, optical properties, and carrier transport processes, enabling optimization of both optical absorption and photogenerated carrier collection as required to realize the very high power conversion efficiencies predicted for such devices. Second, “metasurface" structures based on single or multiple layers of metal nanostructure arrays will be designed fabricated, and characterized at UT Austin using chemically synthesized metal nanoparticles and solution-based deposition and assembly techniques developed at Clausthal. Appropriately designed these structures will provide wavelength-selective reflectance and transmittance robust tovariations in polarization and angle of incident Iight, and are expected to enable powerful approaches for spectral splitting of sunlight in high-efficiency solar cell assemblies. The collaboration between researchers at UT Austin and the Clausthal University of Technology will be advanced via periodic visits from the home to the collaborating institution, and will build upon a strong existing collaboration between the laboratories of E. Yu at UT Austin and D. Schaadt at Clausthal.

我们建议国际合作努力之间的得克萨斯大学奥斯汀分校（E。T. Yu，PI）和克劳斯塔尔科技大学（D. M. Schaadt，German Pl）开发用于高效光伏器件和太阳能电池组件的材料、加工和器件技术，这些器件和组件可以在广泛的光谱照明条件下提供最佳性能，如聚光光伏器件等应用所需的。将进行两项主要的研究。首先，我们将研究概念和能带结构工程，以实现高开路电压同时高光电流的量子阱太阳能使用GaAs/InxGa 1-xAs 1-y-z.Sby和GaAs/InxGa 1-xAs 1-y-z SbyNz异质结。这些想法将与使用亚波长尺度的金属/电介质结构相结合，用于在薄膜半导体层中捕获长波长光，从而增加量子阱区域的吸收。Clausthal的外延生长和基本结构和光学材料表征将与UT Austin的异质结构建模和设计，器件加工以及光学和电学表征相结合，以全面了解外延生长，材料质量，光学特性和载流子传输过程，使得能够根据需要优化光吸收和光生载流子收集，以实现对于这种器件所预测的非常高的功率转换效率。其次，基于单层或多层金属纳米结构阵列的“超表面”结构将在UT Austin设计制造，并使用化学合成的金属纳米颗粒和Clausthal开发的基于溶液的沉积和组装技术进行表征。适当设计这些结构将提供波长选择性反射和透射稳健的偏振和入射光的角度的变化，并有望使高效太阳能电池组件中的太阳光光谱分裂的强大方法。UT Austin和Clausthal University of Technology的研究人员之间的合作将通过从家庭到合作机构的定期访问来推进，并将建立在E. Yu在UT Austin和D.在克劳斯塔尔的沙特。

项目成果

Metamaterial-Silicon Anti-reflection Waveguide Model for Solar Cells

• DOI: 10.1364/ose.2016.sow2c.2
• 发表时间: 2016-11
• 作者: Houria Hamouche;M. Shabat;D. Schaadt

Design and analysis of multilayer waveguides containing nanoparticles for solar cells

太阳能电池用纳米粒子多层波导的设计与分析

• DOI: 10.1016/j.solener.2016.08.041
• 发表时间: 2016
• 期刊: Solar Energy
• 影响因子: 6.7
• 作者: Mohammed M Shabat;Dena M El-Amassi;Daniel M Schaadt
• 通讯作者: Daniel M Schaadt

Integrated optical nanostructures for wide-angle antireflection and light trapping in III/V solar cells

用于 III/V 太阳能电池中广角抗反射和光捕获的集成光学纳米结构

• DOI: 10.1109/pvsc.2014.6925371
• 发表时间: 2014
• 期刊: 2014 IEEE 40th Photovoltaic Specialist Conference (PVSC)
• 作者: X. H. Li;P. C. Li;D. Z. Hu;D. M. Schaadt;Ch. Stender;C. O. McPheeters;R. Tatavarti;K. Sablon;E. T. Yu
• 通讯作者: E. T. Yu

Angular dependence of light trapping in In0.3Ga0.7As/GaAs quantum-well solar cells

In0 3Ga0 7As/GaAs 量子阱太阳能电池中光捕获的角度依赖性

• DOI: 10.1063/1.4862931
• 发表时间: 2014
• 期刊: Journal of Applied Physics
• 影响因子: 3.2
• 作者: X. H. Li;P. C. Li;D. Z. Hu;D. M. Schaadt;E. T. Yu
• 通讯作者: E. T. Yu

Light trapping in thin-film solar cells via scattering by nanostructured antireflection coatings

• DOI: 10.1063/1.4816782
• 发表时间: 2013-07-28
• 期刊: JOURNAL OF APPLIED PHYSICS
• 影响因子: 3.2
• 作者: Li, X. H.;Li, P. C.;Yu, E. T.
• 通讯作者: Yu, E. T.