Time decay study of Ag/PEDOT:PSS/μT-Si/In:Ga heterojunction solar cell using electrochemical impedance spectroscopy

2018 ◽  
Author(s):  
Prashant Singh ◽  
Swati Bhushan ◽  
Vandana ◽  
C. M. S. Rauthan ◽  
Sanjay K. Srivastava
Keyword(s):  
Solar Cell ◽  
Electrochemical Impedance Spectroscopy ◽  
Impedance Spectroscopy ◽  
Electrochemical Impedance ◽  
Heterojunction Solar Cell ◽  
Time Decay ◽  
Decay Study

Effect of Methylammonium Iodide (CH3NH3PbI3) Perovskite Concentration on the Performance of Perovskite Solar Cell

2016 ◽  
Vol 1 ◽  
Author(s):  
Altaf Yahya AL-she’irey
Keyword(s):  
Solar Cell ◽  
Electrochemical Impedance Spectroscopy ◽  
Impedance Spectroscopy ◽  
Sandwich Structure ◽  
Carrier Transport ◽  
Electrochemical Impedance ◽  
Power Conversion ◽  
Perovskite Solar Cell ◽  
Concentration Increase ◽  
Eis Analysis

<p>The effect of Methylammonium Iodide (CH<sub>3</sub>NH<sub>3</sub>PbI<sub>3</sub>) perovskites (MIP) concentration on the performance of perovskites sensitized solar cell (PSC) was studied. Three MIP concentrations, namely 0.2, 0.4, and 1.0 M were prepared. In this study PSC with a sandwich structure of ITO/TiO<sub>2</sub>/ MIP /electrolyte/ Pt film was fabricated for this purpose. It was found that power conversion efficiency (PCE) increased with the increasing the concentration of MIP, from 0.01 to 0.21 % as the concentration increase from 0.2 to 1.0 M. Photoluminescence (PL) study showed that the increase of the MIP concentration decrease therecombination of carrier in the device. Electrochemical impedance spectroscopy (EIS) analysis also shows that with the increased of MIP concentration results in the decreased of the R<sub>ct </sub>due to the improvement of the carrier transport in the devices. </p>

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