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.

Comparative analysis of burn-in photo-degradation in non-fullerene COi8DFIC acceptor based high-efficiency ternary organic solar cells

2019 ◽  
Vol 3 (6) ◽  
pp. 1085-1096 ◽  
Author(s):  
Leiping Duan ◽  
Xianyi Meng ◽  
Yu Zhang ◽  
Haimang Yi ◽  
Ke Jin ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Comparative Analysis ◽  
High Power ◽  
Organic Solar Cells ◽  
Organic Solar Cell ◽  
High Efficiency ◽  
Power Conversion ◽  
High Power Conversion Efficiency ◽  
Photo Degradation

The ternary organic solar cell is a promising technology towards high power conversion efficiency.

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.

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

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.

High-Efficiency HIT Solar Cells for Excellent Power Generating Properties

2008 ◽  
Vol 1123 ◽  
Author(s):  
Toshihiro Kinoshita ◽  
Daisuke Ide ◽  
Yasufumi Tsunomura ◽  
Shigeharu Taira ◽  
Toshiaki Baba ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Conversion Efficiency ◽  
Production Cost ◽  
High Efficiency ◽  
Open Circuit Voltage ◽  
Short Circuit ◽  
Open Circuit ◽  
Surface Recombination Velocity ◽  
Dominant Factor

AbstractIn order to achieve the widespread use of HIT (Hetero-junction with I etero-Intrinsic T ntrinsic Thin-layer) solar cells, it is important to reduce the power generating cost. There are three main approaches for reducing this cost: raising the conversion efficiency of the HIT cell, using a thinner wafer to reduce the wafer cost, and raising the open circuit voltage to obtain a better temperature coefficient. With the first approach, we have achieved the highest conversion efficiency values of 22.3%, confirmed by AIST, in a HIT solar cell. This cell has an open circuit voltage of 0.725 V, a short circuit current density of 38.9 mA/cm2 and a fill factor of 0.791, with a cell size of 100.5 cm2. The second approach is to use thinner Si wafers. The shortage of Si feedstock and the strong requirement of a lower sales price make it necessary for solar cell manufacturers to reduce their production cost. The wafer cost is an especially dominant factor in the production cost. In order to provide low-priced, high-quality solar cells, we are trying to use thinner wafers. We obtained a conversion efficiency of 21.4% (measured by Sanyo) for a HIT solar cell with a thickness of 85μm. Even better, there was absolutely no sagging in our HIT solar cell because of its symmetrical structure. The third approach is to raise the open circuit voltage. We obtained a remarkably higher Voc of 0.739 V with the thinner cell mentioned above because of its low surface recombination velocity. The high Voc results in good temperature properties, which allow it to generate a large amount of electricity at high temperatures.

scholarly journals Enhancement of photovoltaic efficiency by insertion of a polyoxometalate layer at the anode of an organic solar cell

2014 ◽  
Vol 1 (9) ◽  
pp. 682-688 ◽  
Author(s):  
M. Alaaeddine ◽  
Q. Zhu ◽  
D. Fichou ◽  
G. Izzet ◽  
J. E. Rault ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Power Conversion Efficiency ◽  
High Power ◽  
Organic Solar Cells ◽  
Organic Solar Cell ◽  
Power Conversion ◽  
High Power Conversion Efficiency ◽  
Photovoltaic Efficiency ◽  
Thick Layers

Thick layers of the Wells–Dawson K6[P2W18O62] highly ordered were obtained and integrated at the anodic interface of organic solar cells to reach high power conversion efficiency.

Narrow band-gap materials with overlapping absorption simultaneously increase the open circuit voltage and average visible transmittance of semitransparent organic solar cells

2021 ◽  
Author(s):  
Xuexiang Huang ◽  
Jiyeon Oh ◽  
Yujun Cheng ◽  
Bin Huang ◽  
Shanshan Ding ◽  
...  
Keyword(s):  
Organic Solar Cells ◽  
Near Infrared ◽  
Open Circuit Voltage ◽  
Narrow Band ◽  
Short Circuit ◽  
Power Conversion ◽  
Short Circuit Current ◽  
Short Circuit Current Density ◽  
Open Circuit ◽  
Visible Transmittance

Overlapping near-infrared absorption not only does not reduce short-circuit current density (JSC), but also can ensure a high average visible transmittance (AVT) and get a high open-circuit voltage (VOC) and power conversion efficiency (PCE) at the same time.

scholarly journals Introducing a novel high-efficiency arc less heterounction DJ solar cell

2018 ◽  
Vol 31 (1) ◽  
pp. 89-100
Author(s):  
Sobhan Abasian ◽  
Reza Sabbaghi-Nadooshan
Keyword(s):  
Solar Cell ◽  
Lattice Constant ◽  
Fill Factor ◽  
High Efficiency ◽  
Open Circuit Voltage ◽  
Short Circuit ◽  
Hole Mobility ◽  
Short Circuit Current ◽  
Open Circuit ◽  
High Electron

The present study was undertaken to examine the structure and performance of hetero junctions on the fill factor, short circuit current and open circuit voltage of aInGaP/GaAsdual-junction solar cell. This goal of this work was to reduce recombination in the bottom cell so that the electrons and holes produced in the top cell with the lowest recombination participate in the output current. Semiconductors with a high bandwidth from the ?? group were studied in order to obtain a high open circuit voltage. By observing mobility and lattice constant semiconductors (Al0.52In0.48P, GaAs and In0.49Ga0.51P), it was concluded that the semiconductor Al0.52In0.48P has high electron mobility and hole mobility and that the lattice constant matched to the GaAs semiconductor can be effective in reducing recombination. The cathode current and absorbed photons show that the composition InGaP/AlInP increased the number of charge carriers in the top cell. The structure of InGaP-AlInP/GaAs-AlInP was obtained by inserting an InGaP-AlInP heterojunction at the top and GaAs-AlInP heterojunction at the bottom of aInGaP/GaAs dual-junction cell. For this structure, short circuit current (JSC) = 22.96 mA/cm2, open circuit voltage (Voc) = 2.72 V, fill factor (FF) = 93.26% and efficiency(?)= 58.28% were obtained under AM1.5 (1 sun) of radiation.

scholarly journals A High Efficiency Chlorophyll Sensitized Solar Cell with Quasi Solid PVA Based Electrolyte

2016 ◽  
Vol 2016 ◽  
pp. 1-9 ◽  
Author(s):  
H. C. Hassan ◽  
Z. H. Z. Abidin ◽  
F. I. Chowdhury ◽  
A. K. Arof
Keyword(s):  
Solar Cell ◽  
Fill Factor ◽  
High Efficiency ◽  
Open Circuit Voltage ◽  
Short Circuit ◽  
Short Circuit Current ◽  
Short Circuit Current Density ◽  
Open Circuit ◽  
Double Salt ◽  
Sensitized Solar Cells

The objective of this work is to investigate the performance of chlorophyll sensitized solar cells (CSSCs) with gel electrolyte based on polyvinyl alcohol (PVA) with single iodide salt (potassium iodide (KI)) and double salt (KI and tetrapropylammonium iodide (TPAI)). Chlorophyll was extracted from the bryophyteHyophila involuta. The CSSC with electrolyte containing only KI salt produced a short circuit current density (Jsc) of 4.59 mA cm−2, open circuit voltage (Voc) of 0.61 V, fill factor (FF) of 0.64, and efficiency (η) of 1.77%. However, the CSSC with double salt electrolyte exhibitedJscof 5.96 mA cm−2,Vocof 0.58 V, fill factor FF of 0.58, andηof 2.00%. Since CSSC with double salt electrolyte showed better efficiency, other cells fabricated will use the double salt electrolyte. On addition of 0.7 M tetrabutyl pyridine (TBP) to the double salt electrolyte, the cell’s efficiency increased to 2.17%,Jsc=5.37 mA cm−2,Voc=0.55 V, and FF = 0.73. With 5 mM chenodeoxycholic acid (CDCA) added to the chlorophyll, the light to electricity efficiency increased to 2.62% withJscof 8.44 mA cm−2,Vocof 0.54 V, and FF of 0.58.

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