scholarly journals Precise fluorination of polymeric donors towards efficient non-fullerene organic solar cells with enhanced open circuit voltage, short circuit current and fill factor

2021 ◽  
Author(s):  
Xiaosha Wang ◽  
Honggang Chen ◽  
Jun Yuan ◽  
Qingya Wei ◽  
Jing Li ◽  
...  
Keyword(s):  
Solar Cells ◽  
Energy Level ◽  
Organic Solar Cells ◽  
Fill Factor ◽  
Open Circuit Voltage ◽  
Short Circuit ◽  
Short Circuit Current ◽  
Open Circuit ◽  
Chemical Structures ◽  
Similar Chemical

Three polymer donors named Qx-8F, Qx-10F, and Qx-12F, with similar chemical structures, was synthesized. The energy level of these donors is manipulated by precisely controlling the fluorination sites. We demonstrate...

scholarly journals SCAPS Simulation on P3HT:Graphene Nanocomposites Based Bulk-Heterojunction Organic Solar Cells

2019 ◽  
Vol 9 (1) ◽  
pp. 28
Author(s):  
Nur Shakina Mohd Shariff ◽  
Puteri Sarah Mohamad Saad ◽  
Mohamad Rusop Mahmood
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
Fill Factor ◽  
Bulk Heterojunction ◽  
Short Circuit ◽  
Short Circuit Current ◽  
Short Circuit Current Density ◽  
Open Circuit ◽  
Simulation Software ◽  
Capacitance Voltage

There has been an increasing interest towards organic solar cells after the discovery of conjugated polymer and bulk-heterojunction concept. Eventhough organic solar cells are less expensive than inorganic solar cells but the power conversion energy is still considered low. The main objective of this research is to investigate the effect of the P3HT’s thickness and concentration towards the efficiency of the P3HT:Graphene solar cells. A simulation software that is specialize for photovoltaic called SCAPS is used in this research to simulate the effect on the solar cells. The solar cell’s structure will be drawn inside the simulation and the parameters for each layers is inserted. The result such as the open circuit voltage (Voc), short circuit current density (Jsc), fill factor (FF), efficiency (η), capacitance-voltage (C-V) and capacitance-frequency (C-f) characteristic will be calculated by the software and all the results will be put into one graph.

Simulation of InAIN/Si Single-Heterojunction Solar Cells Using wxAMPS

2014 ◽  
Vol 665 ◽  
pp. 111-114 ◽  
Author(s):  
Ying Huang ◽  
Xiao Ming Shen ◽  
Xiao Feng Wei
Keyword(s):  
Solar Cells ◽  
Fill Factor ◽  
High Efficiency ◽  
Open Circuit Voltage ◽  
Short Circuit ◽  
Short Circuit Current ◽  
Indium Content ◽  
Open Circuit ◽  
Heterojunction Solar Cells ◽  
Si Solar Cells

In this paper, InAlN/Si single-heterojunction solar cells have been theoretically simulated based on wxAMPS software. The photovoltaic parameters, such as open circuit voltage, short circuit current, fill factor and conversion efficiency were investigated with changing the indium content and thickness of n-InAlN layer. Simulation results show that the optimum efficiency of InAlN/Si solar cells is 23.1% under AM 1.5G spectral illuminations, with the indium content and thickness of n-InAlN layer are 0.65 and 600nm, respectively. The simulation would contribute to design and fabricate high efficiency InAlN/Si solar cells in experiment.

scholarly journals Optical Property and Photoelectrical Performance of a Low-bandgap Conducting Polymer Incorporated with Quantum Dots Used for Organic Solar Cells

2015 ◽  
Vol 25 (2) ◽  
pp. 139
Author(s):  
Tran Thi Thao ◽  
Vu Thi Hai ◽  
Nguyen Nang Dinh ◽  
Le Dinh Trong
Keyword(s):  
Quantum Dots ◽  
Solar Cells ◽  
Organic Solar Cells ◽  
Fill Factor ◽  
Short Circuit ◽  
Short Circuit Current ◽  
Short Circuit Current Density ◽  
Open Circuit ◽  
Low Bandgap ◽  
A Value

By using spin-coating technique, a low bandgap conjugated polymer, poly[2,6-(4,4-bis-(2-ethylhexyl)-4H-cyclopen-ta[2,1-b;3,4-b′]dithiophene)-alt-4,7-(2,1,3-benzothiadiazole)] (PCPDTBT)  and its composite thin films have been prepared. The optical absorption and photoconductive properties with over a wide spectral range, from 350 to 950  nm, were characterized. The obtained results showed that PCPDTBT:10 wt% CdSe  composite is the most suitable for efficient light-harvesting in polymer-based photovoltaic cells. The photoelectrical conversion efficiency (PCE) of the device with  a multilayer structure of ITO/PEDOT/ PCPDTBT:CdSe /LiF/Al  reached a value as large as 1.34% with an open-circuit voltage (Voc) = 0.57 V, a short-circuit current density (Jsc) = 4.29 mA/cm2, and a fill factor (FF) = 0.27. This suggests a useful application in further fabrication of quantum dots/polymers based solar cells.

scholarly journals Features of model thin-film solar cells photoelectric characteristics based on a non-toxic multi-component connection CuZn2AlS4

2021 ◽  
Vol 5 (3) ◽  
pp. 242-250
Author(s):  
D. Sergeyev ◽  
K. Shunkeyev ◽  
B. Kuatov ◽  
N. Zhanturina
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Quantum Efficiency ◽  
Fill Factor ◽  
Open Circuit Voltage ◽  
Short Circuit ◽  
Short Circuit Current ◽  
Open Circuit ◽  
Thin Film Solar Cells ◽  
Current Voltage

In this paper, the features of the characteristics of model thin-film solar cells based on the non-toxic multicomponent compound CuZn2AlS4 (CZAS) are considered. The main parameters (open-circuit voltage, short-circuit current, fill factor, efficiency) and characteristics (quantum efficiency, current-voltage characteristic) of thin-film solar cells based on CZAS have been determined. The minimum optimal thickness of the CZAS absorber is found (1-1.25 microns). Deterioration of the performance of solar cells with an increase in operating temperature (280-400 K) is shown. It is revealed that in the wavelength range of 390-500 nm CZAS has a high external quantum efficiency, which allows its use in designs of multi-junction solar cells designed to absorb solar radiation in the specified range. It is shown that the combination of CZAS films with a buffer layer of non-toxic ZnS increases the performance of solar cells.

Simultaneously increasing open-circuit voltage and short-circuit current to minimize the energy loss in organic solar cells via designing asymmetrical non-fullerene acceptor

2019 ◽  
Vol 7 (18) ◽  
pp. 11053-11061 ◽  
Author(s):  
Wei Gao ◽  
Tao Liu ◽  
Jiewei Li ◽  
Yiqun Xiao ◽  
Guangye Zhang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Energy Loss ◽  
Organic Solar Cells ◽  
Open Circuit Voltage ◽  
Short Circuit ◽  
Short Circuit Current ◽  
Open Circuit

Asymmetrical a-BTTIC simultaneously increases the open-circuit voltage and short-circuit current, and boosts the efficiency of OSCs with energy loss lower than 0.6 eV.

Simultaneous Enhancement of Open-Circuit Voltage, Short-Circuit Current Density, and Fill Factor in Polymer Solar Cells

2011 ◽  
Vol 23 (40) ◽  
pp. 4636-4643 ◽  
Author(s):  
Zhicai He ◽  
Chengmei Zhong ◽  
Xun Huang ◽  
Wai-Yeung Wong ◽  
Hongbin Wu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Current Density ◽  
Fill Factor ◽  
Open Circuit Voltage ◽  
Polymer Solar Cells ◽  
Short Circuit ◽  
Short Circuit Current ◽  
Short Circuit Current Density ◽  
Open Circuit

scholarly journals Damp-Heat Induced Performance Degradation for InGaP/GaAs/Ge Triple-Junction Solar Cell

2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
Hwen-Fen Hong ◽  
Tsung-Shiew Huang ◽  
Wu-Yih Uen ◽  
Yen-Yeh Chen
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Conversion Efficiency ◽  
Triple Junction ◽  
Fill Factor ◽  
Open Circuit Voltage ◽  
Short Circuit ◽  
Short Circuit Current ◽  
Energy Conversion Efficiency ◽  
Open Circuit

We performed accelerated tests on sealed and nonsealed InGaP/InGaAs/Ge triple-junction (TJ) solar cells in a complex high temperature and high humidity environment and investigated the electrical properties over time. The degradation of energy conversion efficiency in nonsealed cells was found to be more serious than that in sealed cells. The short-circuit current (ISC), open-circuit voltage (VOC), and fill factor (FF) of sealed cells changed very slightly, though the conversion efficiency decreased 3.6% over 500 h of exposure. This decrease of conversion efficiency was suggested to be due to the deterioration of silicone encapsulant. TheISC,VOC, and FF of nonsealed cells decreased with increasing exposure time. By EL and SEM analysis, the root causes of degradation can be attributed to the damage and cracks near the edge of cells induced by the moisture ingress. It resulted in shunt paths that lead to a deterioration of the conversion efficiency of solar cell by increasing the leakage current, as well as decreasing open-circuit voltage and fill factor of nonsealed solar cells.

Simultaneous improvement of three parameters using a binary processing solvent system approach in as-cast non-fullerene solar cells

2019 ◽  
Vol 7 (45) ◽  
pp. 25978-25984 ◽  
Author(s):  
Guoming Qin ◽  
Lianjie Zhang ◽  
Dong Yuan ◽  
Haiying Jiang ◽  
Wei Tang ◽  
...  
Keyword(s):  
Solar Cells ◽  
System Approach ◽  
Fill Factor ◽  
Open Circuit Voltage ◽  
Short Circuit ◽  
Photovoltaic Performance ◽  
Short Circuit Current ◽  
Solvent System ◽  
Open Circuit ◽  
Binary Solvent

A binary solvent approach simultaneously improves the open-circuit voltage, short-circuit current, and fill factor, and finally elevates the as-cast photovoltaic performance.

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