Polymethylmethacrylate coating on aligned carbon nanotube–silicon solar cells for performance improvement

2014 ◽  
Vol 2 (12) ◽  
pp. 4140-4143 ◽  
Author(s):  
Ru Li ◽  
Jiangtao Di ◽  
Zhenzhong Yong ◽  
Baoquan Sun ◽  
Qingwen Li
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Carbon Nanotube ◽  
Performance Improvement ◽  
Silicon Solar Cells ◽  
Si Solar Cell

PMMA coating on aligned CNT–Si solar cell with efficiency of 13% after doping by NO2.

scholarly journals The Viability of Organic Dyes in Luminescent Down-Shifting Layers for the Enhancement of Si Solar Cell Efficiency

2020 ◽  
Vol 995 ◽  
pp. 71-76
Author(s):  
Aaron Glenn ◽  
Conor Mc Loughlin ◽  
Hind Ahmed ◽  
Hoda Akbari ◽  
Subhash Chandra ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Organic Dyes ◽  
Polyvinyl Butyral ◽  
High Energy ◽  
Silicon Solar Cells ◽  
Solar Cell Efficiency ◽  
Cell Efficiency ◽  
Si Solar Cell ◽  
Si Solar Cells

The main energy losses in solar cells are related to spectral losses where high energy photons are not used efficiently, and energy is lost via thermalization which reduces the solar cell’s overall efficiency. A way to tackle this is to introduce a luminescent down-shifting layer (LDS) to convert these high energy photons into a lower energy bracket helping the solar cell to absorb them and thus generating a greater power output. In this paper, lumogen dye Violet 570 has been used as LDS coated films of 10μm and 60μm placed on top of Si solar cells. The dye was incorporated into polymer films of Polyvinyl Butyral (PVB) and Polymethyl Methacrylate (PMMA) after which they were tested for their absorption, transmission and emission properties. Once optimised layers had been determined, they were deposited directly onto silicon solar cells and the external quantum efficiency (EQE) of the Si solar cells were measured with and without the LDS layers. The resulting graphs have shown an increase of up to 2.9% in the overall EQE efficiency after the lumogen films had been applied.

Efficiency Limitations of Multicrystalline Silicon Solar Cells Due to Defect Clusters

2005 ◽  
Vol 864 ◽  
Author(s):  
Bhushan Sopori ◽  
Chuan Li ◽  
S. Narayanan ◽  
D. Carlson
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Multicrystalline Silicon ◽  
Silicon Solar Cells ◽  
Efficiency Loss ◽  
Defect Clusters ◽  
Si Solar Cell ◽  
Solar Cell Fabrication ◽  
Cell Fabrication ◽  
Large Clusters

AbstractMulticrystalline Si wafers used in commercial solar cell fabrication exhibit a tendency to form large “clusters” of defects, which remain laterally separated from each other. Defect clusters are also sites of impurity precipitation. Because precipitated impurities cannot be gettered by the conventional processes used in Si solar cell fabrication, defect clusters constitute low-performing regions in the cell. They shunt the device and constitute the primary efficiency limiting mechanism in current solar cells. We show that the efficiency loss caused by defect clusters can exceed 3–4 absolute points.

scholarly journals Hybrid(Luminescent and Fresnel ) Concentrators to Improve Solar Panel Conversion Efficiency

2011 ◽  
Vol 8 (2) ◽  
pp. 577-580 ◽  
Author(s):  
Baghdad Science Journal
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Conversion Efficiency ◽  
Crystalline Silicon ◽  
Spectral Response ◽  
Silicon Solar Cells ◽  
The Sun ◽  
Crystalline Silicon Solar Cells ◽  
Si Solar Cell ◽  
Irradiance Spectrum

The spectral response of the Si solar cell does not coincidence with the sun irradiance spectrum, so the efficiency of the Si solar cell is not high. To improve the Si solar cell one try to make use of most region of the sun spectrum by using dyes which absorb un useful wavelengths and radiate at useful region of spectrum (by stock shift). Fluorescence's dye is used as luminescent concentrator to increase the efficiency of the solar cell. The results show that the performance efficiency and out power for crystalline silicon solar cells are improved.

scholarly journals New insight into rare-earth doped gadolinium molybdate nanophosphor assisted broad spectral converters from UV to NIR for silicon solar cells

RSC Advances ◽  
2015 ◽  
Vol 5 (31) ◽  
pp. 24729-24736 ◽  
Author(s):  
Pawan Kumar ◽  
Bipin Kumar Gupta
Keyword(s):  
Solar Cells ◽  
Rare Earth ◽  
Solar Cell ◽  
Silicon Solar Cells ◽  
Solar Cell Application ◽  
Si Solar Cell ◽  
Gadolinium Molybdate ◽  
Rare Earth Doped ◽  
Insight Into

Demonstration of novel rare-earth doped gadolinium molybdate nanophosphor assisted broad spectral converters from UV to NIR for Si-solar cell application.

scholarly journals Three-Terminal Amorphous Silicon Solar Cells

2011 ◽  
Vol 2011 ◽  
pp. 1-5 ◽  
Author(s):  
Cheng-Hung Tai ◽  
Chu-Hsuan Lin ◽  
Chih-Ming Wang ◽  
Chun-Chieh Lin
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Electric Field ◽  
Amorphous Silicon ◽  
Silicon Solar Cells ◽  
Thickness Optimization ◽  
Material Parameters ◽  
Si Solar Cell ◽  
Average Electric Field ◽  
Recombination Centers

Many defects exist within amorphous silicon since it is not crystalline. This provides recombination centers, thus reducing the efficiency of a typical a-Si solar cell. A new structure is presented in this paper: a three-terminal a-Si solar cell. The new back-to-back p-i-n/n-i-p structure increased the average electric field in a solar cell. A typical a-Si p-i-n solar cell was also simulated for comparison using the same thickness and material parameters. The 0.28 μm-thick three-terminal a-Si solar cell achieved an efficiency of 11.4%, while the efficiency of a typical a-Si p-i-n solar cell was 9.0%. Furthermore, an efficiency of 11.7% was achieved by thickness optimization of the three-terminal solar cell.

A large-area luminescent downshifting layer containing an Eu3+ complex for crystalline silicon solar cells

2020 ◽  
Vol 49 (15) ◽  
pp. 4725-4731
Author(s):  
Daqing Yang ◽  
Haiduo Liang ◽  
Yujie Liu ◽  
Man Hou ◽  
Liping Kan ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Polyvinyl Alcohol ◽  
Quantum Efficiency ◽  
External Quantum Efficiency ◽  
Crystalline Silicon ◽  
Silicon Solar Cells ◽  
Large Area ◽  
Crystalline Silicon Solar Cells ◽  
Si Solar Cell

We present a large-area luminescent down-shifting layer consists of polyvinyl alcohol embedding a newly synthesized ternary Eu3+ complex. C-Si solar cell coated with this layer displayed an enhancement of ~15% in external quantum efficiency.

scholarly journals High-performance hole conductor-free perovskite solar cell using a carbon nanotube counter electrode

RSC Advances ◽  
2020 ◽  
Vol 10 (59) ◽  
pp. 35831-35839 ◽  
Author(s):  
Mustafa K. A. Mohammed
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Carbon Nanotube ◽  
High Performance ◽  
Counter Electrode ◽  
Perovskite Solar Cells ◽  
Perovskite Solar Cell ◽  
Manufacturing Cost ◽  
Long Term Stability

Carbon-based perovskite solar cells (C-PSCs) are the most promising photovoltaic (PV) due to their low material and manufacturing cost and superior long-term stability.

scholarly journals Simulation mechanical stress influence to silicon solar cells by Comsol Multiphysics

2021 ◽  
Vol 10 (2) ◽  
pp. 469-472
Keyword(s):  
Mechanical Properties ◽  
Solar Cells ◽  
Solar Cell ◽  
Mechanical Stress ◽  
Comsol Multiphysics ◽  
Silicon Solar Cells ◽  
Stress Influence

We know the mechanical properties of silicon. However, little is known about the mechanical properties of silicon solar cells. Modeling is widely used in the study of solar cells. This article discusses in detail the effect of mechanical stress on solar cells. To do this, a model of the solar cell was created and simulated at Comsol Multiphysics. The results were presented visually and graphically. The results were tested for relevance and accuracy

Carbon Nanotube-Silicon Solar Cells

2012 ◽  
Vol 2 (9) ◽  
pp. 1043-1055 ◽  
Author(s):  
Daniel D. Tune ◽  
Benjamin S. Flavel ◽  
Ralph Krupke ◽  
Joseph G. Shapter
Keyword(s):  
Solar Cells ◽  
Carbon Nanotube ◽  
Silicon Solar Cells
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