The Influence of Interchain Branches on Solid State Packing, Hole Mobility and Photovoltaic Properties of Poly(3-hexylthiophene) (P3HT)

2007 ◽  
Vol 28 (17) ◽  
pp. 1781-1785 ◽  
Author(s):  
Guoli Tu ◽  
Askin Bilge ◽  
Sylwia Adamczyk ◽  
Michael Forster ◽  
Ralf Heiderhoff ◽  
...  
Keyword(s):  
Solid State ◽  
Hole Mobility ◽  
Photovoltaic Properties

Effect of Branched Conjugation Structure on the Optical, Electrochemical, Hole Mobility, and Photovoltaic Properties of Polythiophenes

2006 ◽  
Vol 110 (51) ◽  
pp. 26062-26067 ◽  
Author(s):  
Erjun Zhou ◽  
Zhan'ao Tan ◽  
Lijun Huo ◽  
Youjun He ◽  
Chunhe Yang ◽  
...  
Keyword(s):  
Hole Mobility ◽  
Photovoltaic Properties

scholarly journals Highly Ordered TiO2 Nanotube Electrodes for Efficient Quasi-Solid-State Dye-Sensitized Solar Cells

Energies ◽  
2020 ◽  
Vol 13 (22) ◽  
pp. 6100
Author(s):  
A Reum Lee ◽  
Jae-Yup Kim
Keyword(s):  
Solar Cells ◽  
Solid State ◽  
Dye Sensitized Solar Cells ◽  
Tio2 Nanotube ◽  
Gel Electrolyte ◽  
Polymer Gel ◽  
Polymer Gel Electrolyte ◽  
Photovoltaic Properties ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

Free-standing TiO2 nanotube (NT) electrodes have attracted much attention for application in solid- or quasi-solid-state dye-sensitized solar cells (DSSCs) because of their suitable pore structure for the infiltration of solid electrolytes. However, few studies have been performed on the relationship between nanostructures of these NT electrodes and the photovoltaic properties of the solid- or quasi-solid-state DSSCs. Here, we prepare vertically aligned and highly ordered TiO2 NT electrodes via a two-step anodization method for application in quasi-solid-state DSSCs that employs a polymer gel electrolyte. The length of NT arrays is controlled in the range of 10–42 μm by varying the anodization time, and the correlation between NT length and the photovoltaic properties of quasi-solid-state DSSCs is investigated. As the NT length increases, the roughness factor of the electrode is enlarged, leading to the higher dye-loading; however, photovoltage is gradually decreased, resulting in an optimized conversion efficiency at the NT length of 18.5 μm. Electrochemical impedance spectroscopy (EIS) analysis reveals that the decrease in photovoltage for longer NT arrays is mainly attributed to the increased electron recombination rate with redox couples in the polymer gel electrolyte.

scholarly journals Steady Enhancement in Photovoltaic Properties of Fluorine Functionalized Quinoxaline-Based Narrow Bandgap Polymer

Molecules ◽  
2018 ◽  
Vol 24 (1) ◽  
pp. 54 ◽  
Author(s):  
Zhonglian Wu ◽  
Huanxiang Jiang ◽  
Xingzhu Wang ◽  
Lei Yan ◽  
Wei Zeng ◽  
...  
Keyword(s):  
Fill Factor ◽  
Polymer Solar Cells ◽  
Short Circuit ◽  
Photovoltaic Performance ◽  
Hole Mobility ◽  
Short Circuit Current ◽  
Open Circuit ◽  
Promising Candidate ◽  
Photovoltaic Properties ◽  
Narrow Bandgap

To investigate the influence of fluoride phenyl side-chains onto a quinoxaline (Qx) unit on the photovoltaic performance of the narrow bandgap (NBG) photovoltaic polymers, herein, two novel NBG copolymers, PBDTT-DTQx and PBDTT-DTmFQx, were synthesized and characterized. 2-ethylhexylthiothiophene-substituted benzodithiophene (BDTT), 2,3-diphenylquinoxaline (DQx) [or 2,3-bis(3-fluorophenyl)quinoxaline (DmFQx)] and 2-ethylhexylthiophene (T) were used as the electron donor (D) unit, electron-withdrawing acceptor (A) unit and π-bridge, respectively. Compared to non-fluorine substituted PBDTT-DTQx, fluoride PBDTT-DTmFQx exhibited a wide UV-Vis absorption spectrum and high hole mobility. An enhanced short-circuit current (Jsc) and fill factor (FF) simultaneously gave rise to favorable efficiencies in the polymer/PC71BM-based polymer solar cells (PSCs). Under the illumination of AM 1.5G (100 mW cm−2), a maximum power conversion efficiency (PCE) of 6.40% was achieved with an open-circuit voltage (Voc) of 0.87 V, a Jsc of 12.0 mA cm−2 and a FF of 61.45% in PBDTT-DTmFQx/PC71BM-based PSCs, while PBDTT-DTQx-based devices also exhibited a PCE of 5.43%. The excellent results obtained demonstrate that PBDTT-DTmFQx by fluorine atom engineering could be a promising candidate for organic photovoltaics.

Synthesis and photovoltaic properties of low band gap quarterthiophenes-alt-diketopyrrolopyrroles polymers having high hole mobility

2012 ◽  
Vol 104 ◽  
pp. 185-192 ◽  
Author(s):  
Seon Kyoung Son ◽  
Bong Soo Kim ◽  
Chun-Young Lee ◽  
Joong Suk Lee ◽  
Jeong Ho Cho ◽  
...  
Keyword(s):  
Band Gap ◽  
Hole Mobility ◽  
Photovoltaic Properties ◽  
Low Band Gap

scholarly journals Regioisomer effects of [70]PCBM on film structures and photovoltaic properties of composite films with a crystalline conjugated polymer P3HT

RSC Advances ◽  
2017 ◽  
Vol 7 (72) ◽  
pp. 45697-45704 ◽  
Author(s):  
Tomokazu Umeyama ◽  
Sho Shibata ◽  
Tetsushi Miyata ◽  
Kensho Igarashi ◽  
Tomoyuki Koganezawa ◽  
...  
Keyword(s):  
Conjugated Polymer ◽  
Composite Films ◽  
Hole Mobility ◽  
Photovoltaic Properties

The β-isomer of [70]PCBM induced a face-on P3HT packing, resulting in the superior hole mobility and photovoltaic properties.

Synthesis, Hole Mobility, and Photovoltaic Properties of Cross-Linked Polythiophenes with Vinylene−Terthiophene−Vinylene as Conjugated Bridge

2007 ◽  
Vol 40 (6) ◽  
pp. 1831-1837 ◽  
Author(s):  
Erjun Zhou ◽  
Zhan'ao Tan ◽  
Yi Yang ◽  
Lijun Huo ◽  
Yingping Zou ◽  
...  
Keyword(s):  
Hole Mobility ◽  
Photovoltaic Properties

Photovoltaic Properties and Preparations of Dye-Sensitized Solar Cells Using Solid-State Polymer Electrolytes

2006 ◽  
Vol 444 (1) ◽  
pp. 233-239 ◽  
Author(s):  
Mi-Ra Kim ◽  
Sung-Ho Jin ◽  
Sung-Hae Park ◽  
Hyun-Jeong Lee ◽  
Eun-Hee Kang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solid State ◽  
Polymer Electrolytes ◽  
Dye Sensitized Solar Cells ◽  
Photovoltaic Properties ◽  
Dye Sensitized ◽  
Sensitized Solar Cells
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