Design of a high-efficiency and low-cost reflection-type diffractive optical element as the spectrum splitting solar concentrator for lateral multi-junction solar cells architecture

2016 ◽  
Author(s):  
Qingli Huang ◽  
Qi Peng ◽  
Jianyao Hu ◽  
Huawei Xu ◽  
Chunxu Jiang ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Efficiency ◽  
Low Cost ◽  
Optical Element ◽  
Diffractive Optical Element ◽  
Solar Concentrator ◽  
Spectrum Splitting

Design and fabrication of a diffractive optical element as a spectrum-splitting solar concentrator for lateral multijunction solar cells

2013 ◽  
Vol 52 (11) ◽  
pp. 2312 ◽  
Author(s):  
Qingli Huang ◽  
Jinze Wang ◽  
Baogang Quan ◽  
Qiulin Zhang ◽  
Dongxiang Zhang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Optical Element ◽  
Diffractive Optical Element ◽  
Solar Concentrator ◽  
Spectrum Splitting ◽  
Multijunction Solar Cells

Solar Spectrum Splitting Parallel Junction High Efficiency Concentrating Photovoltaics

2012 ◽  
Vol 1391 ◽  
Author(s):  
Lirong Z. Broderick ◽  
Marco Stefancich ◽  
Dario Roncati ◽  
Brian R. Albert ◽  
Xing Sheng ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Efficiency ◽  
Linear Array ◽  
Low Cost ◽  
Spectral Band ◽  
Solar Spectrum ◽  
Optical Loss ◽  
Single Element ◽  
Si Substrate ◽  
Spectrum Splitting

ABSTRACTA compact, single element concentrator comprising a near linear array of prisms has been designed to simultaneously split and concentrate the solar spectrum. Laterally aligned solar cells with different bandgaps are devised to be fabricated on a common Si substrate, with each cell absorbing a different spectral band optimized for highest overall power conversion efficiency. Epitaxial Ge on Si is used as a low cost virtual substrate for III-V materials growth. Assuming no optical loss for the prism concentrator, no shadowing and perfect carrier collection for the solar cells, simulations show that 39% efficiency can be achieved for a parallel four-junction (4PJ) InGaP-GaAs-Si-Ge cell under 200X concentration, and higher efficiency is possible with more junctions.

Experimental demonstration of a dispersive spectral splitting concentrator for high efficiency photovoltaics

MRS Advances ◽  
2016 ◽  
Vol 1 (14) ◽  
pp. 949-955 ◽  
Author(s):  
Carlo Maragliano ◽  
Matteo Chiesa ◽  
Marco Stefancich
Keyword(s):  
Solar Cells ◽  
Mass Production ◽  
Large Scale ◽  
High Efficiency ◽  
Low Cost ◽  
Electrical Power ◽  
Optical Element ◽  
Optical Transmittance ◽  
Experimental Demonstration ◽  
Full Spectrum

ABSTRACTWe report the experimental demonstration of a low-cost paradigm for photovoltaic power generation that utilizes a prismatic Fresnel-like lens to simultaneously concentrate and separate sunlight into laterally spaced spectral bands. The optical element is designed using geometric optics and optical dispersion and its performance is simulated with a ray-tracing software. The device, fabricated by injection molding, suitable for large-scale mass production, is experimentally characterized. We report an average optical transmittance above 85% over the VIS-IR range and spectral separation in excellent agreement with our simulations. Finally, the system is tested with a pair of copper indium gallium selenide based solar cells. We demonstrate an increase in peak electrical power output of 160% under outdoor sunlight illumination, corresponding to an increase in power conversion efficiency of 15% relative to single-junction full-spectrum one-sun illumination. Given the ease of manufacturability and the potential of the proposed solution, we project that our design can provide a cost-effective alternative to multi-junction solar cells ready for mass production.

scholarly journals Research on the Performance of Solar Aided Power Generation System Based on Annular Fresnel Solar Concentrator

Energies ◽  
2021 ◽  
Vol 14 (6) ◽  
pp. 1579
Author(s):  
Heng Zhang ◽  
Na Wang ◽  
Kai Liang ◽  
Yang Liu ◽  
Haiping Chen
Keyword(s):  
Power Generation ◽  
High Efficiency ◽  
Low Cost ◽  
Economic Index ◽  
Partial Replacement ◽  
Solar Concentrator ◽  
Small Disturbance ◽  
Step Size ◽  
Water Matrix ◽  
Cost Utilization

A solar-aided power generation (SAPG) system effectively promotes the high efficiency and low cost utilization of solar energy. In this paper, the SAPG system is represented by conventional coal-fired units and an annular Fresnel solar concentrator (AFSC) system. The annular Fresnel solar concentrator system is adopted to generate solar steam to replace the extraction steam of the turbine. According to the steam–water matrix equation and improved Flugel formula, the variable conditions simulation and analysis of the thermo-economic index were proposed by Matlab. Furthermore, in order to obtain the range of small disturbance, the method of partial replacement is used, that is, the extraction steam of the turbine is replaced from 0 to 100% with a step size of 20%. In this work, a SAPG system is proposed and its thermo-economic index and small disturbance scope are analyzed. The results show that the SAPG system is energy-saving, and the application scope of small disturbance is related to the quantity of the extraction steam and evaluation index.

scholarly journals Ruthenium Sensitizers and Their Applications in Dye-Sensitized Solar Cells

2012 ◽  
Vol 2012 ◽  
pp. 1-21 ◽  
Author(s):  
Yuancheng Qin ◽  
Qiang Peng
Keyword(s):  
Solar Cells ◽  
High Efficiency ◽  
Low Cost ◽  
Dye Sensitized Solar Cells ◽  
Ruthenium Complexes ◽  
Practical Applications ◽  
Photovoltaic Energy ◽  
Dye Sensitized ◽  
Sensitized Solar Cells ◽  
Excellent Stability

Dye-sensitized solar cells (DSSCs) have attracted considerable attention in recent years due to the possibility of low-cost conversion of photovoltaic energy. The DSSCs-based ruthenium complexes as sensitizers show high efficiency and excellent stability, implying potential practical applications. This review focuses on recent advances in design and preparation of efficient ruthenium sensitizers and their applications in DSSCs, including thiocyanate ruthenium sensitizers and thiocyanate-free ruthenium sensitizers.

High-efficiency subwavelength diffractive optical element in GaAs for 975 nm

1995 ◽  
Vol 20 (12) ◽  
pp. 1441 ◽  
Author(s):  
M. E. Warren ◽  
R. E. Smith ◽  
G. A. Vawter ◽  
J. R. Wendt
Keyword(s):  
High Efficiency ◽  
Optical Element ◽  
Diffractive Optical Element
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