Strong addition effect of n-type polymer with mid-energy level in polymer:fullerene solar cells with power conversion efficiency exceeding 10%

2018 ◽  
Vol 6 (17) ◽  
pp. 7480-7487 ◽  
Author(s):  
Hyemi Han ◽  
Jooyeok Seo ◽  
Myeonghun Song ◽  
Hwajeong Kim ◽  
Youngkyoo Kim
Keyword(s):  
Energy Transfer ◽  
Solar Cells ◽  
Energy Level ◽  
Power Conversion Efficiency ◽  
Transfer Process ◽  
Conjugated Polymer ◽  
Bulk Heterojunction ◽  
Energy Transfer Process ◽  
Power Conversion ◽  
Cascade Energy

The efficiency of inverted-type polymer:fullerene solar cells is greatly enhanced up to >10% by adding only 0.5 wt% of n-type conjugated polymer (THBT-ht) as a mid-energy level additive due to the efficient cascade energy transfer process in the bulk heterojunction layers with finer nanoscale morphology.

scholarly journals Poly(3-hexylthiophene) Grafting and Molecular Dilution: Study of a Class of Conjugated Graft Copolymers

Polymers ◽  
2019 ◽  
Vol 11 (2) ◽  
pp. 205 ◽  
Author(s):  
Tomasz Jarosz ◽  
Kinga Kepska ◽  
Przemyslaw Ledwon ◽  
Marcin Procek ◽  
Wojciech Domagala ◽  
...  
Keyword(s):  
Solar Cells ◽  
Power Conversion Efficiency ◽  
Conjugated Polymer ◽  
Bulk Heterojunction ◽  
Power Conversion ◽  
Electrochemical Analysis ◽  
Charge Carriers ◽  
Heterojunction Solar Cells ◽  
Grafted Copolymer ◽  
Regioregular Poly

A type of graft copolymer based on polysiloxane and regioregular poly(3-hexylthiophene) (P3HT) has been synthesised and its properties have been studied alongside those of its parent conjugated polymer—regioregular P3HT. Electrochemical analysis has revealed more significant changes in conformation of the copolymer film than was observed for P3HT. UV-Vis-NIR spectroelectrochemical investigation provided evidence of improved doping reversibility of the copolymer, despite its marginally increased band gap, as also confirmed by electroconductometric analysis. Evidence has been shown, indicating that polaron mobilities in both P3HT and the copolymer are higher than those of bipolaronic charge carriers, even though both systems exhibit standard doping/dedoping patterns. The grafted copolymer was tested in bulk heterojunction solar cells. Preliminary studies show a great potential of these polymers for application in photovoltaics. Power conversion efficiency of up to 2.46% was achieved despite the dilution of the P3HT chains in the copolymer.

Pyridine-functionalized fullerene additive enabling coordination interactions with CH3NH3PbI3 perovskite towards highly efficient bulk heterojunction solar cells

2019 ◽  
Vol 7 (6) ◽  
pp. 2754-2763 ◽  
Author(s):  
Jieming Zhen ◽  
Weiran Zhou ◽  
Muqing Chen ◽  
Bairu Li ◽  
Lingbo Jia ◽  
...  
Keyword(s):  
Solar Cells ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Bulk Heterojunction ◽  
Power Conversion ◽  
Fullerene Derivative ◽  
Heterojunction Solar Cells ◽  
Bulk Heterojunction Solar Cells ◽  
Highly Efficient

A novel pyridine-functionalized fullerene derivative (C60-PyP) as an additive in regular bulk heterojunction perovskite (CH3NH3Pbl3) solar cells (PSCs) enables a power conversion efficiency of 19.82% with markedly suppressed hysteresis.

A new fluoropyrido[3,4-b]pyrazine based polymer for efficient photovoltaics

2017 ◽  
Vol 8 (14) ◽  
pp. 2227-2234 ◽  
Author(s):  
Tao Wang ◽  
Lihui Jiang ◽  
Jun Yuan ◽  
Liuliu Feng ◽  
Zhi-Guo Zhang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Electron Donor ◽  
Conjugated Polymer ◽  
Polymer Solar Cells ◽  
Power Conversion

Using a fluoropyrido[3,4-b]pyrazine based 2D-conjugated polymer as an electron donor in polymer solar cells, a power conversion efficiency of 6.2% is obtained, which is the highest PCE among the PP-based polymers reported to date.

Conditions for efficient charge generation preceded by energy transfer process in non-fullerene organic solar cells

2021 ◽  
Author(s):  
L. Benatto ◽  
C. A. M. Moraes ◽  
G. Candiotto ◽  
K. R. A. Sousa ◽  
J. P. A. Souza ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Solar Cells ◽  
Binding Energy ◽  
Transfer Process ◽  
Organic Solar Cells ◽  
Driving Force ◽  
Energy Transfer Process ◽  
Simple Relationship ◽  
Charge Generation ◽  
Efficient Charge

Our results provide a simple relationship involving the driving force and binding energy of CT state to maximize charge generation in non-fullerene organic solar cells.

scholarly journals 9.0% power conversion efficiency from ternary all-polymer solar cells

2017 ◽  
Vol 10 (10) ◽  
pp. 2212-2221 ◽  
Author(s):  
Zhaojun Li ◽  
Xiaofeng Xu ◽  
Wei Zhang ◽  
Xiangyi Meng ◽  
Zewdneh Genene ◽  
...  
Keyword(s):  
Solar Cells ◽  
Energy Level ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
High Performance ◽  
Polymer Solar Cells ◽  
Power Conversion ◽  
Energy Level Alignment ◽  
Proper Energy

High-performance ternary all-polymer solar cells with outstanding efficiency of 9.0% are realized by incorporating two donor and one acceptor polymers with complementary absorption and proper energy level alignment.

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