Annealing temperature dependence of the performance of bulk heterojunction polymer: Fullerene solar cells under short and open circuit conditions

2021 ◽  
Vol 271 ◽  
pp. 116611
Author(s):  
M. Radaoui ◽  
A. Ben Fredj ◽  
S. Romdhane ◽  
D.A.M. Egbe ◽  
H. Bouchriha
Keyword(s):  
Solar Cells ◽  
Temperature Dependence ◽  
Annealing Temperature ◽  
Bulk Heterojunction ◽  
Open Circuit ◽  
Annealing Temperature Dependence

Annealing temperature dependence of the efficiency and vertical phase segregation of polymer/polymer bulk heterojunction photovoltaic cells

2014 ◽  
Vol 104 (22) ◽  
pp. 223906 ◽  
Author(s):  
Nishit M. Murari ◽  
Matthew J. Crane ◽  
Taeshik Earmme ◽  
Ye-Jin Hwang ◽  
Samson A. Jenekhe
Keyword(s):  
Temperature Dependence ◽  
Annealing Temperature ◽  
Bulk Heterojunction ◽  
Photovoltaic Cells ◽  
Phase Segregation ◽  
Polymer Bulk ◽  
Annealing Temperature Dependence

Temperature dependence of HOMO-LUMO levels and open circuit voltage for P3HT:PCBM organic solar cells

2011 ◽  
Vol 1360 ◽  
Author(s):  
Yang Shen ◽  
Louis Scudiero ◽  
Mool C. Gupta
Keyword(s):  
Solar Cells ◽  
Energy Level ◽  
Temperature Dependence ◽  
Organic Solar Cells ◽  
Photoelectron Spectroscopy ◽  
Open Circuit Voltage ◽  
Bulk Heterojunction ◽  
Acid Methyl Ester ◽  
Open Circuit ◽  
Temperature Range

ABSTRACTIn this study, the open circuit voltage (VOC) of poly (3-hexylthiophene-2,5-diyl) (P3HT) and [6,6]-phenyl C61-butyric acid methyl ester (PCBM) bulk heterojunction (BHJ) organic solar cells was measured at temperatures ranging from 300 K to 400 K. The temperature dependence of the vacuum shift and of the highest occupied molecular orbital (HOMO) energy level of P3HT and PCBM were measured by ultraviolet photoelectron spectroscopy (UPS) in the same temperature range. The temperature dependence of the absorption edge was also studied in the same temperature range to obtain the temperature variation of the optical band gap energy (Eg). The measured VOC of the devices showed a clear decreasing trend with increasing operating temperature and the total decrease was found to be about 0.1 V. Although the origin of VOC is still not fully understood it is generally believed that the energy level offset between the HOMO of the donor and the LUMO of the acceptor minus the exciton binding energy (0.3 eV) directly determines the value of VOC. However, by utilizing the measured values of the HOMO for the P3HT (donor) and of the LUMO for the PCBM (acceptor), we have found that the calculated values of VOC and its temperature dependence do not agree with the measured VOC values. This indicates that factors other than the offset between the HOMO of the donor and the LUMO of the acceptor materials are impacting VOC.

Annealing Temperature Dependence of Photoluminescence from Silicon-Rich Silica Films

2001 ◽  
Vol 3 (4) ◽  
pp. 891-895
Author(s):  
Wu Xue-mei ◽  
Zhuge Lan-jian ◽  
Tang Nai-yun ◽  
Ye Chun-nuan ◽  
Ning Zao-yuan ◽  
...  
Keyword(s):  
Temperature Dependence ◽  
Annealing Temperature ◽  
Silica Films ◽  
Annealing Temperature Dependence

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.

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