Synthesis, Morphology, and Field-Effect Mobility of Anthradithiophenes
摘要:
The synthesis. thin-film morphology, and hole mobility in thin-film transistors (TFTs) of compounds based on the novel anthradithiophene (ADT) ring system are reported. The parent compound and its 2,8-dihexyl, didodecyl, and dioctadecyl derivatives (DHADT, DDADT, and DOADT, respectively), synthesized via alkylated thiophene dicarboxaldehyde acetals, were investigated. They all form highly ordered polycrystalline vacuum-evaporated films with mobilities as high as 0.15 cm(2)/(V s), as high as has ever been observed for a polycrystalline organic material. DOADT has a mobility of 0.06 cm(2)/(V s) even though 70% of its molecular volume is occupied by hydrocarbon chains. DHADT was cast from solution under atmospheric conditions onto a TFT giving a mobility of 0.01-0.02 cm(2)/(V s), Thus, the alkylated ADTs combine a pentacene-like intrinsic mobility with greater solubility and oxidative stability.
[EN] ANTHRA[2,3-B:7,6B']DITHIOPHENE DERIVATIVES AND THEIR USE AS ORGANIC SEMICONDUCTORS<br/>[FR] DÉRIVÉS D'ANTHRA[2,3-B:7,6-B']DITHIOPHÈNE ET LEUR UTILISATION À TITRE DE SEMI-CONDUCTEURS ORGANIQUES
申请人:MERCK PATENT GMBH
公开号:WO2012031659A1
公开(公告)日:2012-03-15
The invention relates to novel anthra[2,3-b:7,6-b']dithiophene derivatives, methods of their preparation, their use as semiconductors in organic electronic (OE) devices, and to OE devices comprising these derivatives.
Pân junction solar cells based on anthradithiophene (ADT) as a p-type semiconductor were fabricated by using the photoprecursor method in which an α-diketone-type precursor was spin-coated and then transformed to ADT in situ by photoirradiation. Combination with PC71BM as an n-layer material led to 1.54% photoconversion efficiency.
采用光前驱体法制备了以蒽并噻吩(ADT)为p型半导体的P-n结太阳能电池,其中α-二酮型前驱体被旋涂,然后通过光辐照原位转化为ADT。与 PC71BM 结合作为 n 层材料,光电转换效率为 1.54%。
Anthra[2,3-b:7,6-b']dithiophene Derivatives and their Use as Organic Semiconductors
申请人:Wang Changsheng
公开号:US20130146818A1
公开(公告)日:2013-06-13
The invention relates to novel anthra[2,3-b:7,6-b′]dithiophene derivatives, methods of their preparation, their use as semiconductors in organic electronic (OE) devices, and to OE devices comprising these derivatives.