Contactless measurement of electrical parameters and estimation of current-voltage characteristics of Si solar cells using the illumination intensity dependence of lock-in carrierography (photoluminescence) images

2013 ◽  
Vol 114 (10) ◽  
pp. 104509 ◽  
Author(s):  
Junyan Liu ◽  
Alexander Melnikov ◽  
Andreas Mandelis
Keyword(s):  
Solar Cells ◽  
Illumination Intensity ◽  
Contactless Measurement ◽  
Electrical Parameters ◽  
Intensity Dependence ◽  
Si Solar Cells ◽  
Current Voltage ◽  
Current Voltage Characteristics ◽  
Lock In

Plasmonic Light Trapping in Amorphous Si Solar Cells Using Periodic Ag Nanodisk Structures

2014 ◽  
Vol 1627 ◽  
Author(s):  
Hidenori Mizuno ◽  
Hitoshi Sai ◽  
Koji Matsubara ◽  
Michio Kondo
Keyword(s):  
Solar Cells ◽  
Wavelength Range ◽  
Conversion Efficiency ◽  
External Quantum Efficiency ◽  
Light Trapping ◽  
Transfer Printing ◽  
Si Solar Cells ◽  
Current Voltage ◽  
Current Voltage Characteristics ◽  
Amorphous Si

ABSTRACTThis paper describes light trapping in superstrate-type amorphous Si solar cells incorporated with Ag nanostructures (nanodisks) fabricated by a transfer-printing approach. The changes in external quantum efficiency (EQE) and current-voltage characteristics were investigated by changing the position and size (thickness) of the Ag nanodisks in the cells fabricated on flat superstrates. It was confirmed that the optimized Ag nanodisk-configuration led to the enhanced EQE (20%) in the 600-800 nm wavelength range, and the enhanced EQE led to the improved overall conversion efficiency (7.5%) compared to the cell without Ag nanodisks (7.2%). However, the integration of the optimized Ag nanodisk-configuration with the cells fabricated on textured superstrates did not result in the enhanced EQE and conversion efficiency, suggesting further optical designs are necessary to exploit both texture- and plasmon-mediated light trapping effects.

Understanding the current-voltage characteristics of industrial crystalline silicon solar cells by considering inhomogeneous current distributions

2013 ◽  
Vol 21 (3) ◽  
Author(s):  
O. Breitenstein
Keyword(s):  
Solar Cells ◽  
Simple Structure ◽  
Crystalline Silicon ◽  
Energy Conversion Efficiency ◽  
Silicon Solar Cells ◽  
Large Area ◽  
Crystalline Silicon Solar Cells ◽  
Current Voltage ◽  
Current Voltage Characteristics ◽  
Lock In

AbstractSolar cells made from multi- or mono-crystalline silicon wafers are the base of today’s photovoltaics industry. These devices are essentially large-area semiconductor p-n junctions. Technically, solar cells have a relatively simple structure, and the theory of p-n junctions was established already decades ago. The generally accepted model for describing them is the so-called two-diode model. However, the current-voltage characteristics of industrial solar cells, particularly of that made from multi-crystalline silicon material, show significant deviations from established diode theory. These deviations regard the forward and the reverse dark characteristics as well as the relation between the illuminated characteristics to the dark ones. In the recent years it has been found that the characteristics of industrial solar cells can only be understood by taking into account local inhomogeneities of the dark current flow. Such inhomogeneities can be investigated by applying lock-in thermography techniques. Based on these and other investigations, meanwhile the basic properties of industrial silicon solar cells are well understood. This contribution reviews the most important experimental results leading to the present state of physical understanding of the dark and illuminated characteristics of multi-crystalline industrial solar cells. This analysis should be helpful for the continuing process of optimizing such cells for further increasing their energy conversion efficiency.

Intensity Dependence of Current–Voltage Characteristics and Recombination in High-Efficiency Solution-Processed Small-Molecule Solar Cells

ACS Nano ◽  
2013 ◽  
Vol 7 (5) ◽  
pp. 4569-4577 ◽  
Author(s):  
Aung Ko Ko Kyaw ◽  
Dong Hwan Wang ◽  
Vinay Gupta ◽  
Wei Lin Leong ◽  
Lin Ke ◽  
...  
Keyword(s):  
Solar Cells ◽  
Small Molecule ◽  
High Efficiency ◽  
Solution Processed ◽  
Intensity Dependence ◽  
Current Voltage ◽  
Current Voltage Characteristics

Solar Cell Manufacturing Method with the Structure of the Bulk Heterojunction Based on Organic Semiconductors with a Direct Architecture

2016 ◽  
Vol 845 ◽  
pp. 224-227 ◽  
Author(s):  
Danila Saranin ◽  
Marina Orlova ◽  
Sergey Didenko ◽  
Oleg Rabinovich ◽  
Andrey Kryukov
Keyword(s):  
Solar Cells ◽  
Organic Semiconductors ◽  
Organic Solar Cells ◽  
Fill Factor ◽  
Research Output ◽  
Bulk Heterojunction ◽  
Organic Basis ◽  
Manufacturing Method ◽  
Current Voltage ◽  
Current Voltage Characteristics

This article presents the results of research output voltage characteristics of solar cells on an organic basis with the use of P3HT: PCBM system. There were produced organic solar cells in a coating in air, current-voltage characteristics were measured. It was determined the characteristic influence of a substrate cleaning and annealing temperature of layers applied on fill factor and conversion efficiency.

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