scholarly journals The Influence of the Base Material Parameters on Quantum and Photoconversion Efficiency of the Si Solar Cells

2016 ◽  
Vol 61 (4) ◽  
pp. 1889-1894 ◽  
Author(s):  
P. Panek
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Charge Carrier ◽  
Effective Charge ◽  
Carrier Lifetime ◽  
Crystalline Silicon ◽  
Base Material ◽  
Photoconversion Efficiency ◽  
Si Solar Cells ◽  
Charge Carrier Lifetime

Abstract The influence of a p-type Si with different resistivity, charge carrier lifetime and emitter dopant impurities concentration on the crystalline silicon solar cells parameters were analyzed and experimentally checked. The findings were determined by quasi-steady-state photoconductance, current-voltage and spectral response methods. The study was accompanied by solar device simulation using a numerical PC1D program. The highest photoconversion efficiency of 15.13 % was obtained for the moncrystalline (Cz-Si) solar cell with a base resistivity of 1.8 Ωcm and an effective charge carrier lifetime of 22.9 μs. The results clearly confirmed the importance concerning the dopant level in a Si base material in relation to open circuit voltage and short circuit current possible to obtain from the solar cell. Reduction of a base material resistivtiy leads to a lower value of an effective charge carrier lifetime and photoconversion efficiency both for Cz-Si and multicrystalline (mc-Si) solar cells. The experimental results and calculation showed, that in the case of a solar cell produced on the basis of crystalline silicon, the most important spectral range for an efficiency of a cell is covering a wavelength range of 587 ÷ 838 nm.

scholarly journals Extraordinarily High Minority Charge Carrier Lifetime Observed in Crystalline Silicon

Solar RRL ◽  
2021 ◽  
Author(s):  
Bernd Steinhauser ◽  
Tim Niewelt ◽  
Armin Richter ◽  
Rebekka Eberle ◽  
Martin Schubert
Keyword(s):  
Charge Carrier ◽  
Carrier Lifetime ◽  
Crystalline Silicon ◽  
Minority Charge Carrier ◽  
Charge Carrier Lifetime

scholarly journals Improved charge carrier lifetime in planar perovskite solar cells by bromine doping

2016 ◽  
Vol 6 (1) ◽  
Author(s):  
David Kiermasch ◽  
Philipp Rieder ◽  
Kristofer Tvingstedt ◽  
Andreas Baumann ◽  
Vladimir Dyakonov
Keyword(s):  
Solar Cells ◽  
Charge Carrier ◽  
Carrier Lifetime ◽  
Perovskite Solar Cells ◽  
Charge Carrier Lifetime

scholarly journals Analytical Study of the Electrical Output Characteristics of c-Si Solar Cells by Cut and Shading Phenomena

Energies ◽  
2018 ◽  
Vol 11 (12) ◽  
pp. 3397 ◽  
Author(s):  
Jong Lim ◽  
Woo Shin ◽  
Hyemi Hwang ◽  
Young-Chul Ju ◽  
Suk Ko ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Crystalline Silicon ◽  
Short Circuit ◽  
Incident Light ◽  
Short Circuit Current ◽  
Open Circuit ◽  
Si Solar Cell ◽  
Si Solar Cells ◽  
Electrical Output

Cut solar cells have received considerable attention recently as they can reduce electrical output degradation when the c-Si solar cells (crystalline-silicon solar cells) are shaded. Cut c-Si solar cells have a lower short-circuit current than normal solar cells and the decrease in short-circuit currents is similar to the shading effect of c-Si solar cells. However, the results of this study’s experiment show that the shadow effect of a c-Si solar cell reduces the V o c (open circuit voltage) in the c-Si solar cell but the V o c does not change when the c-Si solar cell is cut because the amount of incident light does not change. In this paper, the limitations of the electrical power analysis of the cut solar cells were identified when only photo current was considered and the analysis of the electric output of the cut c-Si solar cells was interpreted with a method different from that used in previous analyses. Electrical output was measured when the shaded and cut rates of c-Si solar cells were increased from 0% to 25, 50 and 75%, and a new theoretical model was compared with the experimental results using MATLAB.

Nonequilibrium Charge Carrier Lifetime Testing Equipment for Semiconductor Materials by a Contactless Microwave Phase Method

2013 ◽  
Vol 655-657 ◽  
pp. 830-833
Author(s):  
Song Chen ◽  
Zu Rong Ni ◽  
Fen Xiao
Keyword(s):  
Charge Carrier ◽  
Carrier Lifetime ◽  
Crystalline Silicon ◽  
Nonequilibrium Charge Carrier ◽  
Testing Equipment ◽  
Phase Method ◽  
Automatic Data ◽  
Crystalline Silicon Solar Cells ◽  
Lock In ◽  
Charge Carrier Lifetime

The accurate measurement of nonequilibrium charge carrier lifetime is of vital significance in research and manufacture of crystalline silicon solar cells. A testing equipment based on a contactless microwave phase method was implemented by being embedded with GPIB, FPGA and a lock-in analyzer. A friendly operation interface was developed, based on the graphic programming language LabVIEW. The virtue of the equipment is achieved by automatic data acquisition and processing, which improves the automatization, efficiency and accuracy of the measurement.

scholarly journals Strontium Insertion in Methylammonium Lead Iodide: Long Charge Carrier Lifetime and High Fill-Factor Solar Cells

2016 ◽  
Vol 28 (44) ◽  
pp. 9839-9845 ◽  
Author(s):  
Daniel Pérez-del-Rey ◽  
Dávid Forgács ◽  
Eline M. Hutter ◽  
Tom J. Savenije ◽  
Dennis Nordlund ◽  
...  
Keyword(s):  
Solar Cells ◽  
Charge Carrier ◽  
Fill Factor ◽  
Carrier Lifetime ◽  
Lead Iodide ◽  
High Fill Factor ◽  
Methylammonium Lead Iodide ◽  
Charge Carrier Lifetime
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