The Limits to Organic Photovoltaic Cell Efficiency

MRS Bulletin ◽  
2005 ◽  
Vol 30 (1) ◽  
pp. 28-32 ◽  
Author(s):  
Stephen R. Forrest
Keyword(s):  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Organic Solar Cell ◽  
Power Conversion ◽  
Photovoltaic Cell ◽  
Organic Photovoltaic ◽  
Bulk Heterojunctions ◽  
Fundamental Limits ◽  
Solar Cell Efficiency ◽  
Cell Efficiency

AbstractWe consider the fundamental limits to organic solar cell efficiency, and the schemes that have been used to overcome many of these limitations. In particular, the use of double and bulk heterojunctions, as well as tandem cells employing materials with high exciton diffusion lengths, is discussed.We show that in the last few years, a combination of strategies has led to a power conversion efficiency of ηp = 5.7% (under AM 1.5 G simulated solar radiation at 1 sun intensity) for tandem cells based on small-molecularweight materials, suggesting that even higher efficiencies are possible.We conclude by considering the ultimate power conversion efficiency that is expected from organic thinfilm solar cells.

Synthesis of Cu(In,Ga)(S,Se)2 thin films using an aqueous spray-pyrolysis approach, and their solar cell efficiency of 10.5%

2015 ◽  
Vol 3 (8) ◽  
pp. 4147-4154 ◽  
Author(s):  
Md. Anower Hossain ◽  
Zhang Tianliang ◽  
Lee Kian Keat ◽  
Li Xianglin ◽  
Rajiv R. Prabhakar ◽  
...  
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Solar Cell ◽  
Spray Pyrolysis ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Large Scale ◽  
Power Conversion ◽  
Solar Cell Efficiency ◽  
Cell Efficiency

An aqueous spray-pyrolysis approach for synthesizing Cu(In,Ga)(S,Se)2 thin film, which leads to 10.54% power conversion efficiency in solar cell, and shows ease of fabrication of films in large-scale at a much cheaper cost.

scholarly journals Performance of Silicon Nanowire Solar Cells with Phosphorus-Diffused Emitters

2012 ◽  
Vol 2012 ◽  
pp. 1-6 ◽  
Author(s):  
Lingsheng Zeng ◽  
Xuegong Yu ◽  
Yangang Han ◽  
Deren Yang
Keyword(s):  
Solar Cells ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Low Cost ◽  
Silicon Nanowire ◽  
Power Conversion ◽  
Surface Recombination ◽  
Etching Technique ◽  
Solar Cell Efficiency ◽  
Cell Efficiency

Vertical silicon nanowire (Si NW) arrays on a Si (100) substrate have been prepared by using a low-cost and facile Ag-assisted chemical etching technique. The reflectance of Si NW arrays is very low (<1%) in the spectral range from 400 to 1000 nm. By phosphorus diffusion into Si NW arrays to fabricate solar cells, the power conversion efficiency of 8.84% has been achieved. This power conversion efficiency is much higher than that of the planar cell with the similar celling technology. It is found that the efficiency of Si NW solar cells is intimately associated with their excellent antireflection property. The surface recombination of Si NWs is the main obstacle for the improvement of solar cell efficiency. The current results are helpful to the advancement of the application of Si NWs in photovoltaics.

Effect of the π-linker on the performance of organic photovoltaic devices based on push–pull D–π–A molecules

2018 ◽  
Vol 42 (14) ◽  
pp. 11458-11464 ◽  
Author(s):  
Hong Chul Lim ◽  
Jang-Joo Kim ◽  
Jyongsik Jang ◽  
Jong-In Hong
Keyword(s):  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Bulk Heterojunction ◽  
Power Conversion ◽  
Organic Photovoltaic ◽  
Photovoltaic Devices ◽  
Organic Photovoltaic Devices ◽  
Higher Power

The bulk heterojunction organic photovoltaic (OPV) devices based on 3T : PC71BM (2 wt%, 1 : 1.75 w/w) exhibited a higher power conversion efficiency of 2.58% than DTT-based OPV devices.

Scattering Techniques for Mixed Donor-Acceptor Characterization in Organic Photovoltaics

2021 ◽  
Author(s):  
Thomas Chaney ◽  
Andrew Levin ◽  
Sebastian Schneider ◽  
Michael F. Toney
Keyword(s):  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Organic Photovoltaics ◽  
Bulk Heterojunction ◽  
Power Conversion ◽  
Organic Photovoltaic ◽  
Precise Control ◽  
Active Layers ◽  
Complex Morphology ◽  
Donor Acceptor

Precise control of the complex morphology of organic photovoltaic bulk heterojunction (BHJ) active layers remains an important yet challenging approach for improving power conversion efficiency. Of particular interest are the...

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