有机光导材料Y-TiOPc的制备及其性能表征  

Preparation and characterization of organic photoconductive material Y-TiOPc

作　　者：余银霞[1] 邵磊[1] 降立川[1] 卞曙光[1] 陈建峰[1] 李祥高[2] 

机构地区：[1]北京化工大学教育部超重力工程研究中心,北京100029 [2]天津大学化工学院,天津300072

出　　处：《北京化工大学学报（自然科学版）》2005年第3期5-8,共4页Journal of Beijing University of Chemical Technology(Natural Science Edition)

基　　金：国家高技术研究发展计划(863计划)资助(2002AA325050)

摘　　要：文中采用溶剂调节法制备了有机光导材料YTiOPc。采用邻二氯苯、氯苯、1,2二氯乙烷以及二氯甲烷四种晶型调节剂对TiOPc粗品进行转型。产物经XRD和光导性能分析,证明经过上述四种晶型调节剂处理均可以得到纯度较高的YTiOPc。其中以邻二氯苯转型后的产物光导性能最佳,其饱和电位为538V,暗衰速度为56V/s,残余电位为48V,半衰曝光量为0.4524lx·s,具有良好的静电照相性能。XPS测试结果表明,以邻二氯苯为晶型调节剂所得YTiOPc中N1s和O1s结合能增大,而Ti2p结合能减小。说明在晶型转化过程中发生电荷转移,从而有利于其光导性能的提高。Organic photoconductive materials Y-TiOPc were prepared by a solvent treatment method. TiOPc raw materials were transformed into Y-TiOPc by using crystal structure adjusting agents of 1, 2-dichlorobenzene, chlorobenzene, 1, 2-dichloroethane and dichloromethane. Characterization of the products by XRD and photoconductivity indicated that Y-TiOPc with high purities could be obtained by these four crystal structure adjusting agents. Y-TiOPc obtained by employing 1,2-dichlorobenzene as the adjusting agent had the best photoconductivity, with the saturation potentials of 538 V, dark decay speed of 56 V/s, remnant potentials of 48 V and the half decay exposures of 0.452 4 Ix＂ s, exhibiting an excellent xerographic performance. XPS analyses showed that binding energies of N1s and O1s increased, while binding energies of Ti2p decreased in Y-TiOPc obtained by employing 1,2-dichlorobenzene as the adjusting agent. These results suggested that the charge transfer occurred during the crystal transformation, which enhanced the photoconductivity of Y-TiOPc.

关 键 词：Y-型酞菁氧钛(Y—TiOPc) 溶剂法 光导性能 

分 类 号：TQ264.4[化学工程—有机化工]