Determination of silicon power diode recombination parameters by combining open circuit voltage decay and storage time-reverse recovery data

1991 ◽  
Vol 34 (7) ◽  
pp. 771-780 ◽  
Author(s):  
Ermanno Di Zitti ◽  
Giacomo M. Bisio
1997 ◽  
Vol 19 (4) ◽  
pp. 225-238
Author(s):  
B. Affour ◽  
P. Mialhe

The Open Circuit Voltage Decay (OCVD) method for the determination of the base minority carrier lifetime (τ) and the back surface recombination velocity (S) of silicon solar cells has been investigated at constant illumination level. The validity of the method has been discussed through a simulation study by considering the mathematical solution of the continuity equation. Extracted values ofτand S are compared to their input values in order to evaluate the performances of our method and the precision with regard to cell structural parameters, namely the base width and the base doping level. Deviations in lifetime values remain lower than 7% for almost all the cell configurations while recombination velocity deviations are shown to be dependent on cell structure parameters and experimental procedure.


1994 ◽  
Vol 37 (10) ◽  
pp. 1775-1777
Author(s):  
S.S. De ◽  
A.K. Ghosh ◽  
A.K. Hajra ◽  
M. Bera ◽  
J.C. Haldar

Energies ◽  
2018 ◽  
Vol 11 (8) ◽  
pp. 1931
Author(s):  
Hee-Je Kim ◽  
Jin-Ho Bae ◽  
Hyunwoong Seo ◽  
Masaharu Shiratani ◽  
Chandu Venkata Veera Muralee Gopi

Suppressing the charge recombination at the interface of photoanode/electrolyte is the crucial way to improve the quantum dot sensitized solar cells (QDSSCs) performance. In this scenario, ZnS/SiO2 blocking layer was deposited on TiO2/CuInS2 QDs to inhibit the charge recombination at photoanode/electrolyte interface. As a result, the TiO2/CuInS2/ZnS/SiO2 based QDSSCs delivers a power conversion efficiency (η) value of 4.63%, which is much higher than the TiO2/CuInS2 (2.15%) and TiO2/CuInS2/ZnS (3.23%) based QDSSCs. Impedance spectroscopy and open circuit voltage decay analyses indicate that ZnS/SiO2 passivation layer on TiO2/CuInS2 suppress the charge recombination at the interface of photoanode/electrolyte and enhance the electron lifetime.


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