scholarly journals The Impact of Sequential Fluorination of π-Conjugated Polymers on Charge Generation in All-Polymer Solar Cells

2017 ◽  
Vol 27 (29) ◽  
pp. 1701256 ◽  
Author(s):  
Kakaraparthi Kranthiraja ◽  
Seonha Kim ◽  
Changyeon Lee ◽  
Kumarasamy Gunasekar ◽  
Vijaya Gopalan Sree ◽  
...  
Keyword(s):  
Solar Cells ◽  
Conjugated Polymers ◽  
Polymer Solar Cells ◽  
Charge Generation ◽  
The Impact

scholarly journals Aggregation Controlled Charge Generation in Fullerene Based Bulk Heterojunction Polymer Solar Cells: Effect of Additive

Polymers ◽  
2020 ◽  
Vol 13 (1) ◽  
pp. 115
Author(s):  
Washat Ware ◽  
Tia Wright ◽  
Yimin Mao ◽  
Shubo Han ◽  
Jessa Guffie ◽  
...  
Keyword(s):  
Solar Cells ◽  
Polymer Blends ◽  
Transient Absorption ◽  
Polymer Solar Cells ◽  
Acid Methyl Ester ◽  
Transient Absorption Spectroscopy ◽  
Generation Process ◽  
Charge Generation ◽  
Highly Efficient ◽  
The Impact

Optimization of charge generation in polymer blends is crucial for the fabrication of highly efficient polymer solar cells. While the impacts of the polymer chemical structure, energy alignment, and interface on charge generation have been well studied, not much is known about the impact of polymer aggregation on charge generation. Here, we studied the impact of aggregation on charge generation using transient absorption spectroscopy, neutron scattering, and atomic force microscopy. Our measurements indicate that the 1,8-diiodooctane additive can change the aggregation behavior of poly(benzodithiophene-alt-dithienyl difluorobenzotriazole (PBnDT-FTAZ) and phenyl-C61-butyric acid methyl ester (PCBM)polymer blends and impact the charge generation process. Our observations show that the charge generation can be optimized by tuning the aggregation in polymer blends, which can be beneficial for the design of highly efficient fullerene-based organic photovoltaic devices.

Interface modification strategy based on a hybrid cathode buffer layer for promoting the performance of polymer solar cells

RSC Advances ◽  
2016 ◽  
Vol 6 (1) ◽  
pp. 692-700 ◽  
Author(s):  
Feng Ye ◽  
Zhaobin Chen ◽  
Xiaoli Zhao ◽  
Zidong Li ◽  
Xiaoniu Yang
Keyword(s):  
Solar Cells ◽  
Buffer Layer ◽  
Polymer Solar Cells ◽  
Charge Generation ◽  
Interface Modification ◽  
Cathode Buffer Layer

An interface modification strategy based on a hybrid cathode buffer layer is proposed and demonstrated for promoting charge generation and extraction.

Photochemical stability of π-conjugated polymers for polymer solar cells: a rule of thumb

2011 ◽  
Vol 21 (12) ◽  
pp. 4132 ◽  
Author(s):  
Matthieu Manceau ◽  
Eva Bundgaard ◽  
Jon E. Carlé ◽  
Ole Hagemann ◽  
Martin Helgesen ◽  
...  
Keyword(s):  
Solar Cells ◽  
Conjugated Polymers ◽  
Polymer Solar Cells ◽  
Rule Of Thumb ◽  
Photochemical Stability

scholarly journals Conducting Polymers for Optoelectronic Devices and Organic Solar Cells: A Review

Polymers ◽  
2020 ◽  
Vol 12 (11) ◽  
pp. 2627 ◽  
Author(s):  
Ary R. Murad ◽  
Ahmed Iraqi ◽  
Shujahadeen B. Aziz ◽  
Sozan N. Abdullah ◽  
Mohamad A. Brza
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Conjugated Polymers ◽  
Molecular Orbital ◽  
Organic Solar Cells ◽  
Field Effect Transistors ◽  
Bulk Heterojunction ◽  
Polymer Solar Cells ◽  
Single Layer ◽  
Organic Polymer

In this review paper, we present a comprehensive summary of the different organic solar cell (OSC) families. Pure and doped conjugated polymers are described. The band structure, electronic properties, and charge separation process in conjugated polymers are briefly described. Various techniques for the preparation of conjugated polymers are presented in detail. The applications of conductive polymers for organic light emitting diodes (OLEDs), organic field effect transistors (OFETs), and organic photovoltaics (OPVs) are explained thoroughly. The architecture of organic polymer solar cells including single layer, bilayer planar heterojunction, and bulk heterojunction (BHJ) are described. Moreover, designing conjugated polymers for photovoltaic applications and optimizations of highest occupied molecular orbital (HOMO)–lowest unoccupied molecular orbital (LUMO) energy levels are discussed. Principles of bulk heterojunction polymer solar cells are addressed. Finally, strategies for band gap tuning and characteristics of solar cell are presented. In this article, several processing parameters such as the choice of solvent(s) for spin casting film, thermal and solvent annealing, solvent additive, and blend composition that affect the nano-morphology of the photoactive layer are reviewed.

Achieving efficient polymer solar cells based on benzodithiophene–thiazole-containing wide band gap polymer donors by changing the linkage patterns of two thiazoles

2020 ◽  
Vol 44 (30) ◽  
pp. 13100-13107
Author(s):  
Changguo Xue ◽  
Yu Tang ◽  
Shihui Liu ◽  
He Feng ◽  
Shiqin Li ◽  
...  
Keyword(s):  
Solar Cells ◽  
Conjugated Polymers ◽  
Band Gap ◽  
Polymer Solar Cells ◽  
Wide Band ◽  
Wide Band Gap

Two conjugated polymers with different combinations of two thiazoles were synthesized to study their photovoltaic performances.

Alkoxyphenyl-thiophene, -selenophene and -furan substituted benzodithiophene based 2D π-conjugated polymers for polymer solar cells and effect of chalcogen on optoelectronic properties

2016 ◽  
Vol 222 ◽  
pp. 356-363 ◽  
Author(s):  
Nallan Chakravarthi ◽  
Kakaraparthi Kranthiraja ◽  
Kumarasamy Gunasekar ◽  
Yeong-Soon Gal ◽  
Young-Rae Cho ◽  
...  
Keyword(s):  
Solar Cells ◽  
Conjugated Polymers ◽  
Polymer Solar Cells ◽  
Optoelectronic Properties
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