有 tetrathiafulvalene (TTF ) 的分子的电线作为氧化还原作用中心被综合并且描绘。紫外鈥搗i s 系列和周期的 voltammetry 证明这些电线在周围的条件和他们的人精力层次下面有好可逆氧化还原作用行为(? 5.0 eV ) 与 Au 的费密水平匹配很好(? 5.1 eV ) 。
Er Jing WangCheng Liang WangQing MengHong Xiang LiWen Ping HuDao Ben Zhu
Organic single crystals hold great promise for the development of organic semiconductor materials,because they could reveal the intrinsic electronic properties of these materials,providing high-performance electronic devices and probing the structureproperty relationships.This article reviews the preparation methods for organic single crystals or crystalline micro/nanostructures,including vapor phase growth methods and solution-processed methods,and summarizes a few methods employed in the fabrication of field-effect transistors along with dozens of examples concerning both small molecules and polymers with high field-effect performance.
FU XiaoLong,WANG ChengLiang,LI RongJin,DONG HuanLi & HU WenPing Beijing National Laboratory for Molecular Sciences,Key Laboratory of Organic Solids,Institute of Chemistry,Chinese Academy of Sciences,Beijing 100190,China
A novel pseudo rubrene analogue,6,11-di(thiophen-2-yl)-tetracene-5,12-dione (DTTDO) was synthesized,in which two thienyl groups and two carbonyl groups replacing four phenyl groups in the rubrene molecule were connected to the backbone of tetracene.This compound was characterized by single crystal X-ray structure analysis,thermogravimetric analysis,absorption spectra and electrochemical measurements.Unlike rubrene,DTTDO exhibited excellent film forming ability by normal vacuum deposition,indicating its promising applications in organic thin film transistors.
ZHANG XiaoTao MENG Qing HE YuDong WANG ChengLiang DONG HuanLi HU WenPing
Copper phthalocyanine (CuPc) nanoribbon field-effect transistors were implemented as chemical sensors. They showed fast response and high reversibility in the detection of the tetrahydrofuran atmosphere at room temperature. The drain current of the field-effect transistor sensor decreased from 6.7 to 0.2 nA when the transistor was measured under the tetrahydrofuran atmosphere. The sensor was self-refreshable in a few minutes. These results demonstrate that the organic single crystalline nanoribbon transistors could effectively act as chemical sensors.
