Reconstruction of the charge collection probability in a solar cell from internal quantum efficiency measurements

2001 ◽  
Vol 89 (10) ◽  
pp. 5687-5695 ◽  
Author(s):  
C. Donolato
Keyword(s):  
Solar Cell ◽  
Quantum Efficiency ◽  
Internal Quantum Efficiency ◽  
Charge Collection ◽  
Collection Probability

Design and modeling of an SJ infrared solar cell approaching upper limit of theoretical efficiency

2018 ◽  
Vol 32 (02) ◽  
pp. 1850014 ◽  
Author(s):  
G. S. Sahoo ◽  
G. P. Mishra
Keyword(s):  
Solar Cell ◽  
Quantum Efficiency ◽  
Conversion Efficiency ◽  
Internal Quantum Efficiency ◽  
Spectral Response ◽  
Short Circuit ◽  
Cost Effective ◽  
Short Circuit Current ◽  
Short Circuit Current Density ◽  
Open Circuit

Recent trends of photovoltaics account for the conversion efficiency limit making them more cost effective. To achieve this we have to leave the golden era of silicon cell and make a path towards III–V compound semiconductor groups to take advantages like bandgap engineering by alloying these compounds. In this work we have used a low bandgap GaSb material and designed a single junction (SJ) cell with a conversion efficiency of 32.98%. SILVACO ATLAS TCAD simulator has been used to simulate the proposed model using both Ray Tracing and Transfer Matrix Method (under 1 sun and 1000 sun of AM1.5G spectrum). A detailed analyses of photogeneration rate, spectral response, potential developed, external quantum efficiency (EQE), internal quantum efficiency (IQE), short-circuit current density (J[Formula: see text]), open-circuit voltage (V[Formula: see text]), fill factor (FF) and conversion efficiency ([Formula: see text]) are discussed. The obtained results are compared with previously reported SJ solar cell reports.

Internal quantum efficiency analysis of solar cell by genetic algorithm

Solar Energy ◽  
2010 ◽  
Vol 84 (11) ◽  
pp. 1888-1891 ◽  
Author(s):  
Kanglin Xiong ◽  
Shulong Lu ◽  
Taofei Zhou ◽  
Desheng Jiang ◽  
Rongxin Wang ◽  
...  
Keyword(s):  
Genetic Algorithm ◽  
Solar Cell ◽  
Quantum Efficiency ◽  
Internal Quantum Efficiency ◽  
Efficiency Analysis

scholarly journals Extracting Mobility-Lifetime Product in Solar Cell Absorbers Using Quantum Efficiency Analysis

2015 ◽  
Vol 1771 ◽  
pp. 139-144 ◽  
Author(s):  
Jeremy R. Poindexter ◽  
Riley E. Brandt ◽  
Niall M. Mangan ◽  
Tonio Buonassisi
Keyword(s):  
Solar Cell ◽  
Quantum Efficiency ◽  
Minority Carrier ◽  
Absorption Data ◽  
Multiple Parameters ◽  
Quantitative Measurements ◽  
Collection Probability ◽  
Carrier Collection ◽  
Minority Carrier Mobility ◽  
Analytic Models

ABSTRACTThe long-wavelength quantum efficiency (QE) response of photovoltaic absorbers is determined by the length scales for minority carrier collection. However, extracting quantitative measurements of minority carrier mobility-lifetime product (μτ) is complicated by uncertainty in other factors such as the depletion width, electric field, and the absorption coefficient. We apply previously developed methods to obtain estimates for μτ in a tin(II) sulfide (SnS) solar cell. We compare three analytic models for the minority carrier collection probability as a function of absorber depth to determine which model most accurately captures the behavior in our devices. For models in which multiple parameters are unconstrained, a random numerical search is used to optimize the fit to experimental QE for SnS. To identify sources of error, we perform a sensitivity analysis by fitting with SCAPS-1D. Our analysis shows that changes in absorption most strongly affect estimates for μτ, highlighting the need to obtain accurate, device-specific absorption data. Further modeling and experimental constraints are required to obtain self-consistent values for μτ that correspond to actual device performance.

Neat C60:C70 buckminsterfullerene mixtures enhance polymer solar cell performance

2014 ◽  
Vol 2 (35) ◽  
pp. 14354-14359 ◽  
Author(s):  
Amaia Diaz de Zerio Mendaza ◽  
Jonas Bergqvist ◽  
Olof Bäcke ◽  
Camilla Lindqvist ◽  
Renee Kroon ◽  
...  
Keyword(s):  
Solar Cell ◽  
Quantum Efficiency ◽  
Polymer Solar Cell ◽  
Internal Quantum Efficiency ◽  
Cell Performance ◽  
Ternary Blends ◽  
Solar Cell Performance ◽  
Solar Cell Efficiency ◽  
Cell Efficiency

Ternary blends of C60, C70 and a thiophene–quinoxaline copolymer (TQ1) can be readily processed from solution. A solar cell efficiency of 3.6% is achieved with a 2 : 1 : 1 TQ1:C60:C70 mixture, accompanied by a high internal quantum efficiency of 75%.

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