Dual electron donor/electron acceptor character of a conjugated polymer in efficient photovoltaic diodes

2007 ◽  
Vol 90 (19) ◽  
pp. 193506 ◽  
Author(s):  
Christopher R. McNeill ◽  
Agnese Abrusci ◽  
Jana Zaumseil ◽  
Richard Wilson ◽  
Mary J. McKiernan ◽  
...  
Keyword(s):  
Electron Donor ◽  
Electron Acceptor ◽  
Conjugated Polymer

MEH-PPV/Carbon Nanopearls Nanocomposites for Enhanced Organic Solar Cells Efficiencies

2019 ◽  
Vol 58 ◽  
pp. 68-73
Author(s):  
Adnen Ltaief ◽  
Farah Laariedh ◽  
Toufik B. Badèche ◽  
Abdelaziz Bouazizi ◽  
Vu Thien Binh
Keyword(s):  
Solar Cells ◽  
Electron Donor ◽  
Electron Acceptor ◽  
Organic Solar Cells ◽  
Conjugated Polymer ◽  
Dielectric Measurements ◽  
Donor Material ◽  
Photoelectric Properties ◽  
Photoactive Materials ◽  
Carbon Nanopearls

An organic nanocomposites, based on a conjugated polymer (MEH-PPV) as electron donor material and carbon nanopearls (CNPs) as electron acceptor material, have been elaborated and optoelectronically studied. The effect of CNPs concentration on the electric and photoelectric properties in these blends has been investigated. Dielectric measurements demonstrate that the blend conductivity displays a dramatic increase, reaching 0.6 S/m for a CNPs concentration about 1 wt.%. The elaborated organic nanocomposites were used as photoactive materials in organic solar cells.

Preponderant role of pentafluorophenyl moieties for tuning the electronic properties of extended benzodifuran-azomethine derivatives

2021 ◽  
Author(s):  
Chady Moussallem ◽  
Magali Allain ◽  
Frédéric Gohier ◽  
Pierre Frere
Keyword(s):  
Electronic Properties ◽  
Electron Donor ◽  
Electron Acceptor

From a central 3,7-bis(perfluorophenyl)-BDF unit, the extension performed with electron acceptor perfluorophenyl groups and/or electron donor N,N-dimethylamino groups via an imine link leads to symmetrical AAA and DAD or dissymmetrical...

Microbial Perchlorate Reduction in Groundwater with Different Electron Donors

2013 ◽  
Vol 295-298 ◽  
pp. 1402-1407
Author(s):  
Rui Wang ◽  
Ming Chen ◽  
Jia Wen Zhang ◽  
Fei Liu ◽  
Hong Han Chen
Keyword(s):  
Removal Efficiency ◽  
Electron Donor ◽  
Electron Acceptor ◽  
Reduction Rate ◽  
Electron Donors ◽  
Monod Equation ◽  
Hydrogen Addition ◽  
Perchlorate Reduction ◽  
Perchlorate Removal

Effects of different electron donors (acetate and hydrogen), acetate and perchlorate concentrations on microbial perchlorate reduction in groundwater were studied. The results showed that acetate and hydrogen addition as an electron donor can significantly improve perchlorate removal efficiency while a longer period was observed for hydrogen (15 d) than for acetate (8 d). The optical ratio of electron donor (acetate)-to-electron acceptor (perchlorate) was approximately 1.65 mg COD mg perchlorate-1. The highest specific reduction rate of perchlorate was achieved at the acetate-to-perchlorate ratio of 3.80 mg COD mg perchlorate-1. The perchlorate reduction rates corresponded well to the theoretical values calculated by the Monod equation and the parameters of Ks and Vm were determined to be 15.6 mg L-1 and 0.26 d-1, respectively.

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.

scholarly journals Syntheses and reductions of C-dimesitylboryl-1,2-dicarba-closo-dodecaboranes

2015 ◽  
Vol 44 (21) ◽  
pp. 9766-9781 ◽  
Author(s):  
Jan Kahlert ◽  
Lena Böhling ◽  
Andreas Brockhinke ◽  
Hans-Georg Stammler ◽  
Beate Neumann ◽  
...  
Keyword(s):  
Electron Donor ◽  
Electron Acceptor

An investigation ofC-dimesitylboryl-ortho-carboranes, 1-(BMes2)-2-R-1,2-C2B10H10(1and2), reveals that the carborane is the electron-acceptor and the mesityl group is the electron-donor in these dyads.

D-A type fluorophores with efficient dual-state emission for bioimaging at ultralow concentration

2021 ◽  
Author(s):  
Fuqing Yu ◽  
Haonan Zhao ◽  
Yingzhong Li ◽  
Guomin Xia ◽  
Hongming Wang
Keyword(s):  
Electron Donor ◽  
Electron Acceptor ◽  
Ultralow Concentration

Herein we demonstrate the synthesis and investigation of organic D-A type fluorophores, named Np-TPA and Np-2TPA, comprising of twisted triphenylamine (TPA) as electron-donor and planar 1,8-naphthalenimide (Np) as electron-acceptor. These...

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