An excellent single-layered photoreceptor composed of oxotitanium phthalocyanine nanoparticles and an insulating resin

作者：Chao, Wei; Zhang, Xinran; Xiao, Chao; Liang, Dejian; Wang, Yuan^*

来源：Journal of Colloid and Interface Science, 2008, 325(1): 198-202.

DOI：10.1016/j.jcis.2008.05.021

• oxotitanium phthalocyanine
• nanoparticle
• photoconductivity
• organic photoreceptor

Photoconductive oxotitanium phthalocyanine (TiOPc) nanoparticles with an average diameter of 3.6 nm were successfully prepared. These nanoparticles could be well dispersed in organic solvents such as 1,2-dichloroethane to form a stable organic sol of solvent-stabilized TiOPc nanoparticles. An obvious size effect of TiOPc semiconductor was revealed by the UV-vis absorption spectroscopy measurements. Single-layered photoreceptors were prepared by coating colloidal solutions containing the C(2)H(4)Cl(2)-stabilized TiOPc nanoparticles and a polycarbonate (PC) resin onto aluminium plates. Optimum xerographic properties of the present photoreceptors were obtained on a photoreceptor containing 20 wt% of the TiOPc nanoparticles, which exhibited a photoconductive sensitivity (E(1/2)) of 0.54 mu J/cm(2) and could be positively charged to 596 V.

• 单位
  北京大学; 分子动态与稳态结构国家重点实验室