نتایج جستجو برای: highly doped polymer devices

تعداد نتایج: 802326  

Journal: :Dalton transactions 2013
Yang Chen Jesse D Sokolow Elzbieta Trzop Philip Coppens

A three-dimensional coordination polymer based on a manganese-doped polyoxotitanate nanocluster, {Ti13Mn4O16[MeC(CH2O)3]4(OEt)12Br4}∞, has been synthesized under solvothermal conditions. It is the first framework of doped polyoxotitanate nanoclusters reported in the literature. Compared with anatase, its band gap is reduced from 3.19 to 2.57 eV.

2001
F. Kadirgan

Electrooxidation of methanol was realised on platinum and perchlorate anion doped polypyrrole film electrodes in acidic media. A systematic kinetic investigation was performed and optimum experimental conditions for the preparation of the electrocatalytic system were determined. The presence of ClO4 − anions was confirmed by XPS analysis of the doped polymer matrix. © 2001 Elsevier Science B.V....

2011
Cuifeng Zhou Zongwen Liu Yushan Yan Xusheng Du Yiu-Wing Mai Simon Ringer

Poly(3,4-ethylenedioxythiophene) (PEDOT) films doped with nitric and chlorine ions have been electrochemically deposited simply by a one-step electrochemical method in an aqueous media in the absence of any surfactant. The fabricated PEDOT films were characterized by scanning electron microscopy, transmission electron microscopy, and Raman spectroscopy. The results indicate that the hierarchica...

2012
Wolfgang Molnar Alois Lugstein Tomasz Wojcik Peter Pongratz Norbert Auner Christian Bauch Emmerich Bertagnolli

Perchlorinated polysilanes were synthesized by polymerization of tetrachlorosilane under cold plasma conditions with hydrogen as a reducing agent. Subsequent selective cleavage of the resulting polymer yielded oligochlorosilanes Si(n)Cl(2) (n) (+2) (n = 2, 3) from which the octachlorotrisilane (n = 3, Cl(8)Si(3), OCTS) was used as a novel precursor for the synthesis of single-crystalline Si nan...

2001
P. A. Lane L. C. Palilis D. F. O’Brien C. Giebeler A. J. Cadby D. G. Lidzey A. J. Campbell W. Blau D. D. C. Bradley

The origin of electrophosphorescence from a doped polymer light emitting diode ~LED! has been investigated. A luminescent polymer host, poly~9,9-dioctylfluorene! ~PFO!, was doped with a red phosphorescent dye, 2,3,7,8,12,13,17,18-octaethyl-21H,23H-porphyrin platinum~II! ~PtOEP!. The maximum external quantum efficiency of 3.5% was obtained at a concentration of 4% PtOEP by weight. Energy transfe...

2011
Charles E. Carraher Amitabh J. Battin Michael R. Roner

The condensation polymer derived from reaction between titanocene dichloride and 2-nitro-1,4-phenylenediamine was doped by mixing the polymer with different amounts of iodine. This bulk doping of the titanocene polyamine resulted in an increase in bulk conductivity from 10 to over 1,000 fold. Conductivity increased to a doping level of about 10 to 15% iodine. Conductivity decreased as the sampl...

Journal: :Chemical communications 2016
Jicheng Zhang Xuejuan Zhang Guangwu Li Hongmei Xiao Wenhua Li Sufei Xie Cuihong Li Zhishan Bo

A new 1,8-naphthalimide based planar small molecular acceptor and two benzothiadiazole based wide band gap (WBG) polymer donors P1 and P2 were synthesized for nonfullerene organic photovoltaic cells (OPVs). Devices based on fluorinated polymer P2 achieved a highly improved PCE of 3.71% with an open circuit voltage (V(oc)) of 1.07 V, which is beyond the currently known levels for nonfullerene OP...

2014
Meng-Ting Lee Hsian-Hung Chen Chi-Hung Liao Chih-Hung Tsai Chin H. Chen

Articles you may be interested in Study of electric characteristics and diffusion effects of 2-methyl-9,10-di(2-naphthyl)anthracene doped with cesium fluoride by admittance spectroscopy Appl. Study of efficient and stable organic light-emitting diodes with 2-methyl-9,10-di(2-naphthyl)anthracene as hole-transport material by admittance spectroscopy Appl. Highly efficient deep blue organic electr...

Journal: :Journal of the American Chemical Society 2009
Jianhui Hou Hsiang-Yu Chen Shaoqing Zhang Ruby I Chen Yang Yang Yue Wu Gang Li

HOMO level of the PBDTTT-based polymer was successfully reduced by introducing an ketone group in place of the ester group. The average PCE of the PBDTTT-based devices reached 6.3% with a champion PCE result of 6.58%. Due to its highly efficient photovoltaic performance and more feasible synthesis approach, PBDTTT-C has the potential to be successfully applied in the large-scale manufacturing o...

2015
Nicholas J. Pinto Rosana González Alan T. Johnson Alan G. MacDiarmid

We report on a simple method to fabricate, under ambient conditions and within seconds, Schottky nanodiodes using electrospun polyaniline nanofibers and an inorganic n-doped semiconductor. In addition to being a rectifier, the advantage of our design is the complete exposure of the rectifying nanojunction to the surrounding environment, making them attractive candidates in the potential fabrica...

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