Efficient small molecule organic semiconductor containing bis-dimethylfluorenyl amino benzo[b]thiophene for high open circuit voltage in high efficiency solution processed organic solar cell

RSC Advances ◽  
2012 ◽  
Vol 2 (7) ◽  
pp. 2692 ◽  
Author(s):  
Jooyoung Kim ◽  
Haye Min Ko ◽  
Nara Cho ◽  
Sanghyun Paek ◽  
Jae Kwan Lee ◽  
...  
Keyword(s):  
Solar Cell ◽  
Small Molecule ◽  
Organic Semiconductor ◽  
Organic Solar Cell ◽  
High Efficiency ◽  
Open Circuit Voltage ◽  
Open Circuit ◽  
Solution Processed

An all-small-molecule organic solar cell derived from naphthalimide for solution-processed high-efficiency nonfullerene acceptors

2019 ◽  
Vol 7 (3) ◽  
pp. 709-717 ◽  
Author(s):  
B. Yadagiri ◽  
K. Narayanaswamy ◽  
Srikanth Revoju ◽  
Bertil Eliasson ◽  
Ganesh D. Sharma ◽  
...  
Keyword(s):  
Solar Cell ◽  
Small Molecules ◽  
Small Molecule ◽  
Organic Solar Cell ◽  
High Efficiency ◽  
Solution Processed

Two small molecules BYG-1 and BYG-2 with fluorene donor and benzothiadiazole acceptor units connected to the terminal naphthamide group via ethyne linker were designed and synthesized.

scholarly journals A solution-processed high performance organic solar cell using a small molecule with the thieno[3,2-b]thiophene central unit

2015 ◽  
Vol 51 (83) ◽  
pp. 15268-15271 ◽  
Author(s):  
Qian Zhang ◽  
Yunchuang Wang ◽  
Bin Kan ◽  
Xiangjian Wan ◽  
Feng Liu ◽  
...  
Keyword(s):  
Solar Cell ◽  
Small Molecule ◽  
Organic Solar Cell ◽  
High Performance ◽  
High Efficiency ◽  
Central Unit ◽  
Solution Processed

Replacing the double thiophene unit of DRCN8T with thieno[3,2-b]thiophene, DRCN8TT a high efficiency of 8.11% was achieved, benefiting from the more preferred morphology.

The post-treatment effects on open circuit voltages and device performances in a high efficiency all-small-molecule organic solar cell

2020 ◽  
Vol 8 (43) ◽  
pp. 15385-15392
Author(s):  
Ziqi Zhang ◽  
Qiong Wu ◽  
Dan Deng ◽  
Sihua Wu ◽  
Rui Sun ◽  
...  
Keyword(s):  
Solar Cell ◽  
Small Molecule ◽  
Organic Solar Cell ◽  
Treatment Effects ◽  
High Efficiency ◽  
Open Circuit ◽  
Post Treatment ◽  
Open Circuit Voltages

Post-treatment effects on open circuit voltages and device performances in a novel high efficiency all-small-molecule OSC were deeply investigated.

High-efficiency organic solar cells enabled by halogenation of polymers based on 2D conjugated benzobis(thiazole)

2020 ◽  
Vol 8 (27) ◽  
pp. 13671-13678 ◽  
Author(s):  
Shuguang Wen ◽  
Yonghai Li ◽  
Nan Zheng ◽  
Ibrahim Oladayo Raji ◽  
Chunpeng Yang ◽  
...  
Keyword(s):  
Solar Cell ◽  
Organic Solar Cells ◽  
Organic Solar Cell ◽  
High Efficiency ◽  
Open Circuit Voltage ◽  
Short Circuit ◽  
Power Conversion ◽  
Open Circuit ◽  
High Power Conversion Efficiency ◽  
Circuit Density

A novel polymer based on 2D conjugated benzobis(thiazole) exhibits a high power conversion efficiency of 14.8% in an organic solar cell with IT-4F as the acceptor, with short circuit density and open circuit voltage well-balanced therein.

scholarly journals Numerical Simulation Analysis of Ag Crystallite Effects on Interface of Front Metal and Silicon in the PERC Solar Cell

Energies ◽  
2021 ◽  
Vol 14 (3) ◽  
pp. 592
Author(s):  
Myeong Sang Jeong ◽  
Yonghwan Lee ◽  
Ka-Hyun Kim ◽  
Sungjin Choi ◽  
Min Gu Kang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
High Efficiency ◽  
Open Circuit Voltage ◽  
Surface Recombination ◽  
Open Circuit ◽  
Surface Recombination Velocity ◽  
Metal Interface ◽  
Ag Crystallites ◽  
Recombination Velocity

In the fabrication of crystalline silicon solar cells, the contact properties between the front metal electrode and silicon are one of the most important parameters for achieving high-efficiency, as it is an integral element in the formation of solar cell electrodes. This entails an increase in the surface recombination velocity and a drop in the open-circuit voltage of the solar cell; hence, controlling the recombination velocity at the metal-silicon interface becomes a critical factor in the process. In this study, the distribution of Ag crystallites formed on the silicon-metal interface, the surface recombination velocity in the silicon-metal interface and the resulting changes in the performance of the Passivated Emitter and Rear Contact (PERC) solar cells were analyzed by controlling the firing temperature. The Ag crystallite distribution gradually increased corresponding to a firing temperature increase from 850 ∘C to 950 ∘C. The surface recombination velocity at the silicon-metal interface increased from 353 to 599 cm/s and the open-circuit voltage of the PERC solar cell decreased from 659.7 to 647 mV. Technology Computer-Aided Design (TCAD) simulation was used for detailed analysis on the effect of the surface recombination velocity at the silicon-metal interface on the PERC solar cell performance. Simulations showed that the increase in the distribution of Ag crystallites and surface recombination velocity at the silicon-metal interface played an important role in the decrease of open-circuit voltage of the PERC solar cell at temperatures of 850–900 ∘C, whereas the damage caused by the emitter over fire was determined as the main cause of the voltage drop at 950 ∘C. These results are expected to serve as a steppingstone for further research on improvement in the silicon-metal interface properties of silicon-based solar cells and investigation on high-efficiency solar cells.

An Improved Triple-Tandem Organic Solar Cell

2009 ◽  
Vol 1212 ◽  
Author(s):  
Dewei Zhao ◽  
Xiao Wei Sun ◽  
Lin Ke ◽  
Swee Tiam Tan
Keyword(s):  
Solar Cell ◽  
Small Molecule ◽  
Organic Solar Cells ◽  
Organic Solar Cell ◽  
Copper Phthalocyanine ◽  
Short Circuit ◽  
Short Circuit Current ◽  
Open Circuit ◽  
Solar Irradiation ◽  
The Third

AbstractWe present an efficient polymer-small molecule triple-tandem organic solar cell (OSC), consisting of poly(3-hexylthiophene) (P3HT) and 1-(3-methoxycarbonyl)-propyl-1-phenyl-(6,6)C61 (PCBM) bulk heterojunction as the first and second cells, and small molecules copper phthalocyanine (CuPc) and fullerene (C60) as the third cell on top. These sub-cells are connected by an intermediate layer of Al(1 nm)/MoO3(15 nm), which appears to be highly transparent, structurally smooth, and electrically functional. Compared to our previous all polymer triple-tandem organic solar cells (2.03%), this polymer-small molecule triple-tandem organic solar cell achieves an improved power conversion efficiency of 2.18% with a short-circuit current density (Jsc) = 3.02 mA/cm2, open-circuit voltage (Voc) = 1.51 V, and fill factor (FF) = 47.7% under simulated solar irradiation of 100 mW/cm2 (AM1.5G), which can be attributed to the increased photocurrent generation in the third cell since the third cell has the complementary absorption with two bottom cells despite a slightly reduced Voc.

The Study of Optical and Electrical Properties of a-SiC:H for Multi-junction Si Thin Film Solar Cell

2010 ◽  
Vol 1245 ◽  
Author(s):  
Jenny H. Shim ◽  
W.K. Yoon ◽  
S.T. Hwang ◽  
S.W. Ahn ◽  
H.M. Lee
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
High Efficiency ◽  
Open Circuit Voltage ◽  
Defect Density ◽  
Wide Bandgap ◽  
Open Circuit ◽  
Deposition Condition ◽  
Wide Bandgap Material ◽  
Pressure Regime

AbstractStudies have shown that wide bandgap material is required for high efficiency multi-junction solar cell applications. Here, we address proper deposition condition for high quality a-SiC:H films. In high power high pressure regime, we observed that the defect density get much lowered to the similar defect level of a-Si:H film with high H2 dilution. Single junction solar cells fabricated with the optimized condition show high open circuit voltage and low LID effect. The degradation after the LID test was only 13 % reduction of the efficiency indicating that a-SiC:H could be promising material for multi-junction solar cells.

Higher open circuit voltage caused by chlorinated polymers endows improved efficiency of binary organic solar cell

2020 ◽  
Vol 83 ◽  
pp. 105776
Author(s):  
Guangwen Li ◽  
Hao Cheng ◽  
Youdi Zhang ◽  
Tao Yang ◽  
Yuzhou Liu
Keyword(s):  
Solar Cell ◽  
Organic Solar Cell ◽  
Open Circuit Voltage ◽  
Open Circuit

A high efficiency solution processed polymer inverted triple-junction solar cell exhibiting a power conversion efficiency of 11.83%

2015 ◽  
Vol 8 (1) ◽  
pp. 303-316 ◽  
Author(s):  
Abd. Rashid bin Mohd Yusoff ◽  
Dongcheon Kim ◽  
Hyeong Pil Kim ◽  
Fabio Kurt Shneider ◽  
Wilson Jose da Silva ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Triple Junction ◽  
High Efficiency ◽  
Open Circuit Voltage ◽  
Power Conversion ◽  
Open Circuit ◽  
Tandem Solar Cells

We propose that 1 + 1 + 1 triple-junction solar cells can provide an increased efficiency, as well as a higher open circuit voltage, compared to tandem solar cells.

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