光致电子转移(ET)是有机光电器件中载流子光生最重要的过程。在基于偶氮化合物的层状光感受器中,载流子光生通过空穴传输材料 (HTM) 的掺入而敏感。我们研究了这个过程以阐明高度敏化的机制。首先,测量并比较层状光感受器和载流子生成层的光致 ET 效率和整体量子效率。HTM 增强光诱导 ET 的结果意味着 HTM 催化作用以减少活化能。尽管这种外在 ET 独立于电场发生,但随后的成对解离取决于电场。下一个,通过使用 50 多个光感受器在很宽的范围内改变能隙,研究了 ET 的能隙依赖性。测量的效率针对能隙绘制,其中未观察到倒置区域。
Electrophotographic photoconductor, process for forming an image, image forming apparatus and a process cartridge for the same
申请人:——
公开号:US20030190540A1
公开(公告)日:2003-10-09
Providing an electrophotographic photoconductor comprising a conductive support and a photoconductive layer disposed on the photoconductive support; wherein the photoconductive layer contains an azo compound expressed by a general formula <<1>>.
Ar &Parenopenst;N═N—Cp)
n
general formula <<1>>
(in the general formula <<1>>, Ar expresses one of a substituted or non-substituted aromatic carbon hydride group and heterocyclic ring aromatic series group which can be combined by way of a bond group; Cp expresses a coupler residual group; n expresses an integer of one of 1, 2, 3, and 4; at least one of the Cp is a coupler residual group selected from one of the following general formulae <<2>>, <<3>>, and <<4>>.)
1
ELECTROCHROMIC COMPOUND, ELECTROCHROMIC COMPOSITION, AND ELECTROCHROMIC ELEMENT
申请人:Goto Daisuke
公开号:US20180208834A1
公开(公告)日:2018-07-26
An electrochromic compound represented by the following formula (1) is provided:
where each of R
1
to R
9
and Ar
1
to Ar
6
independently represents one of a hydrogen atom, a halogen atom, a monovalent organic group, a group in which two or more aryl and/or heteroaryl groups are bound to each other via a covalent bond, a group in which two or more aryl and/or heteroaryl groups are condensed with each other to form a ring, and a polymerizable functional group; and at least one of Ar
1
to Ar
6
represents an aryl group, a heteroaryl group, a group in which two or more aryl and/or heteroaryl groups are bound to each other via a covalent bond, or a group in which at least two aryl or heteroaryl groups are condensed with each other to form a ring.
Disclosed herein are compounds represented by Formula 1, wherein R
1
, Ar
1
, X, Ar
2
, Ar
a
, and Het are described herein. Compositions and light-emitting devices related thereto are also disclosed.
Electrophotographic photoconductor, process for forming an image, image forming apparatus and process cartridge for the same
申请人:Shoshi Masayuki
公开号:US20050112487A1
公开(公告)日:2005-05-26
Providing an electrophotographic photoconductor comprising a conductive support and a photoconductive layer disposed on the photoconductive support; wherein the photoconductive layer contains an azo compound expressed by a general formula <<1>>.
ArN═N—Cp)
n
general formula <<1>>
(in the general formula <<1>>, Ar expresses one of a substituted or non-substituted aromatic carbon hydride group and heterocyclic ring aromatic series group which can be combined by way of a bond group; Cp expresses a coupler residual group; n expresses an integer of one of 1, 2, 3, and 4; at least one of the Cp is a coupler residual group selected from one of the following general formulae <<2>>, <<3>>, and <<4>>.)
Electrophotographic photoreceptor, process for producing the same, and image forming apparatus using same
申请人:Sharp Kabushiki Kaisha
公开号:EP0926557A1
公开(公告)日:1999-06-30
The invention enables the forming of a highly characteristic image using an electrophotographic photoreceptor the charge-generating layer of which can be produced with better coating properties and which is highly sensitive and electrostatically highly stable in repeated use. The charge-generating layer of a function-separated type photoreceptor contains a τ-type non-metallic phthalocyanine and a vinyl chloride-vinyl acetate copolymer. The weight ratio of τ-type non-metallic phthalocyanine to the vinyl chloride-vinyl acetate copolymer is preferably 1/3 to 3/1 by weight and the copolymer is suitably of vinyl chloride and vinyl acetate, vinyl chloride, vinyl acetate and maleic acid or vinyl chloride, vinyl acetate and vinyl alcohol, especially one containing at least 10% by weight of vinyl alcohol.