共查询到20条相似文献,搜索用时 15 毫秒
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Organic Thin‐Film Transistors: Thiazole Imide‐Based All‐Acceptor Homopolymer: Achieving High‐Performance Unipolar Electron Transport in Organic Thin‐Film Transistors (Adv. Mater. 10/2018) 下载免费PDF全文
Yongqiang Shi Han Guo Minchao Qin Jiuyang Zhao Yuxi Wang Hang Wang Yulun Wang Antonio Facchetti Xinhui Lu Xugang Guo 《Advanced materials (Deerfield Beach, Fla.)》2018,30(10)
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Thiazole Imide‐Based All‐Acceptor Homopolymer: Achieving High‐Performance Unipolar Electron Transport in Organic Thin‐Film Transistors 下载免费PDF全文
Yongqiang Shi Han Guo Minchao Qin Jiuyang Zhao Yuxi Wang Hang Wang Yulun Wang Antonio Facchetti Xinhui Lu Xugang Guo 《Advanced materials (Deerfield Beach, Fla.)》2018,30(10)
High‐performance unipolar n‐type polymer semiconductors are critical for advancing the field of organic electronics, which relies on the design and synthesis of new electron‐deficient building blocks with good solubilizing capability, favorable geometry, and optimized electrical properties. Herein, two novel imide‐functionalized thiazoles, 5,5′‐bithiazole‐4,4′‐dicarboxyimide (BTzI) and 2,2′‐bithiazolothienyl‐4,4′,10,10′‐tetracarboxydiimide (DTzTI), are successfully synthesized. Single crystal analysis and physicochemical study reveal that DTzTI is an excellent building block for constructing all‐acceptor homopolymers, and the resulting polymer poly(2,2′‐bithiazolothienyl‐4,4′,10,10′‐tetracarboxydiimide) (PDTzTI) exhibits unipolar n‐type transport with a remarkable electron mobility (μe) of 1.61 cm2 V?1 s?1, low off‐currents (Ioff) of 10?10?10?11 A, and substantial current on/off ratios (Ion/Ioff) of 107?108 in organic thin‐film transistors. The all‐acceptor homopolymer shows distinctive advantages over prevailing n‐type donor?acceptor copolymers, which suffer from ambipolar transport with high Ioffs > 10?8 A and small Ion/Ioffs < 105. The results demonstrate that the all‐acceptor approach is superior to the donor?acceptor one, which results in unipolar electron transport with more ideal transistor performance characteristics. 相似文献
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Nir Tessler Yevgeni Preezant Noam Rappaport Yohai Roichman 《Advanced materials (Deerfield Beach, Fla.)》2009,21(27):2741-2761
Semiconducting polymers and small molecules form an extremely flexible class of amorphous materials that can be used in a wide range of applications, some of which are display, radio‐frequency tags, and solar cells. The rapid progress towards functional devices is occurring despite the lack of sufficient understanding of the physical processes and very little experience in device engineering. This tutorial review aims to provide sufficient intuitive background to draw more researchers to look into the fundamental aspects of device physics and engineering. 相似文献
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Ming‐Hui Chiu Hao‐Ling Tang Chien‐Chih Tseng Yimo Han Areej Aljarb Jing‐Kai Huang Yi Wan Jui‐Han Fu Xixiang Zhang Wen‐Hao Chang David A. Muller Taishi Takenobu Vincent Tung Lain‐Jong Li 《Advanced materials (Deerfield Beach, Fla.)》2019,31(18)
2D transition metal dichalcogenide (TMD) layered materials are promising for future electronic and optoelectronic applications. The realization of large‐area electronics and circuits strongly relies on wafer‐scale, selective growth of quality 2D TMDs. Here, a scalable method, namely, metal‐guided selective growth (MGSG), is reported. The success of control over the transition‐metal‐precursor vapor pressure, the first concurrent growth of two dissimilar monolayer TMDs, is demonstrated in conjunction with lateral or vertical TMD heterojunctions at precisely desired locations over the entire wafer in a single chemical vapor deposition (VCD) process. Owing to the location selectivity, MGSG allows the growth of p‐ and n‐type TMDs with spatial homogeneity and uniform electrical performance for circuit applications. As a demonstration, the first bottom‐up complementary metal‐oxide‐semiconductor inverter based on p‐type WSe2 and n‐type MoSe2 is achieved, which exhibits a high and reproducible voltage gain of 23 with little dependence on position. 相似文献
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M.F. Craciun S. Rogge M.‐J.L. denBoer S. Margadonna K. Prassides Y. Iwasa A.F. Morpurgo 《Advanced materials (Deerfield Beach, Fla.)》2006,18(3)
Transport measurements for different electron‐doped metal–phthalocyanine (MPc) materials are reported by Morpurgo and co‐workers on p. 320. It is experimentally demonstrated that for these doped MPc materials, increasing the doping level results first in a metallic state and, subsequently, in the re‐entrance of an insulating state. The artist's impression on the inside cover shows an MPc film situated between two electrodes and exposed to a flux of alkali atoms in vacuum. The alkali atoms intercalate and donate electrons to the molecular material. 相似文献
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