نتایج جستجو برای: organic semiconductor

تعداد نتایج: 258668  

2015
Su Jin Lee Yong-Jae Kim So Young Yeo Eunji Lee Ho Sun Lim Min Kim Yong-Won Song Jinhan Cho Jung Ah Lim

Here we report the first demonstration for centro-apical self-organization of organic semiconductors in a line-printed organic semiconductor: polymer blend. Key feature of this work is that organic semiconductor molecules were vertically segregated on top of the polymer phase and simultaneously crystallized at the center of the printed line pattern after solvent evaporation without an additive ...

2014
Wi Hyoung Lee Yeong Don Park

We reviewed recent advances in high-performance organic field-effect transistors (OFETs) based on organic semiconductor/insulator polymer blends. Fundamental aspects of phase separation in binary blends are discussed with special attention to phase-separated microstructures. Strategies for constructing semiconductor, semiconductor/dielectric, or semiconductor/passivation layers in OFETs by blen...

Journal: :علوم 0
محمداسماعیل عظیم عراقی me azimaraghi دانشگاه خوارزمی صبح ناز ریاضی sn riazi دانشگاه آزاد سالار پورتیمور salar porteamor دانشگاه آزاد

in the present study, we investigate dc conduction mechanism of electron beam evaporated   bromoaluminium phthalocyanine (bralpc) thin films using aluminum and gold electrodes. the current-voltage characteristics of sandwich type device are evaluated for the temperature range 298-413k under dark conditions. it is observed that the current passing through the device is increased by increasing te...

Journal: :Journal of the American Chemical Society 2005
Alejandro L Briseno Joanna Aizenberg Yong-Jin Han Rebecca A Penkala Hyunsik Moon Andrew J Lovinger Christian Kloc Zhenan Bao

This work demonstrates a method for inducing site-specific nucleation and subsequent growth of large oriented organic semiconductor single crystals using micropatterned self-assembled monolayers (SAMs). We demonstrate growth of oriented, patterned, and large organic semiconductor single crystals for potential use in organic electronic devices. The control over multiple parameters in a single sy...

2009
A. A. D. T. Adikaari D. M. N. M. Dissanayake S. R. P. Silva

Solution processed photovoltaic devices are an attractive alternative to costly inorganic semiconductor based conventional photovoltaics. Solution processable organic photovoltaic systems are affected by low carrier mobility, lifetime issues under ambient conditions and limited optical absorption due to the high bandgaps of organic materials. Nanostructured inorganic materials promise to allevi...

2015
Jie Liu Hantang Zhang Huanli Dong Lingqiang Meng Longfeng Jiang Lang Jiang Ying Wang Junsheng Yu Yanming Sun Wenping Hu Alan J. Heeger

The integration of high charge carrier mobility and high luminescence in an organic semiconductor is challenging. However, there is need of such materials for organic light-emitting transistors and organic electrically pumped lasers. Here we show a novel organic semiconductor, 2,6-diphenylanthracene (DPA), which exhibits not only high emission with single crystal absolute florescence quantum yi...

2008
Daniel Frisbie

Polycrystalline organic semiconductor films play a central role in organic electronics because their inherent order, relative to amorphous films, facilitates more efficient charge transport. Carrier mobilities in crystalline organic semiconductors are generally at least a factor of one hundred greater than in their amorphous counterparts, which is attractive for certain device applications, suc...

Journal: :Physical chemistry chemical physics : PCCP 2016
Zeyang Xu Xiaosong Chen Suna Zhang Kunjie Wu Hongwei Li Yancheng Meng Liqiang Li

Electrode materials and geometry play a crucial role in the charge injection efficiency in organic transistors. Reduced graphene oxide (RGO) electrodes show good compatibility with an organic semiconductor from the standpoint of energy levels and ordered growth of the organic semiconductor, both of which are favourable for charge injection. However, the wide electrode edge (>10 nm) in commonly-...

Journal: :ACS nano 2010
Benjamin J Rancatore Clayton E Mauldin Shih-Huang Tung Cheng Wang Alexander Hexemer Joseph Strzalka Jean M J Fréchet Ting Xu

Organic small molecule semiconductors have many advantages over their polymer analogues. However, to fabricate organic semiconductor-based devices using solution processing, it is requisite to eliminate dewetting to ensure film uniformity and desirable to assemble nanoscopic features with tailored macroscopic alignment without compromising their electronic properties. To this end, we present a ...

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