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    • 20. 发明授权
    • Methods to prepare photoreceptors with delayed discharge
    • 准备具有延迟放电的光感受器的方法
    • US6068960A
    • 2000-05-30
    • US153214
    • 1998-09-14
    • Damodar M. PaiChu-Heng LiuJohn F. YanusTimothy J. FullerMarkus R. Silvestri
    • Damodar M. PaiChu-Heng LiuJohn F. YanusTimothy J. FullerMarkus R. Silvestri
    • G03G5/047G03G5/05G03G5/07
    • G03G5/047G03G5/0564G03G5/076
    • A photoreceptor fabrication method including: (a) depositing a charge generating layer; (b) depositing a first charge transport layer having a first charge carrier mobility value; and (c) depositing a second charge transport layer having a second charge carrier mobility value that is different from the first charge carrier mobility value; wherein steps (a), (b), and (c) occur in any order, wherein the difference in the first charge carrier mobility value and the second charge carrier mobility value is accomplished by:(i) wherein the first charge transport layer includes a first binder and a first charge transport material and the second charge transport layer includes a second binder and a second charge transport material, selecting the first binder to have a lesser solubility limit for the first charge transport material than the solubility limit of the second binder for the second charge transport material; or(ii) wherein the first transport layer includes a first polymeric compound composed of a first charge transport moiety covalently bonded to a first binder moiety and the second transport layer includes a second polymeric compound composed of a second charge transport moiety covalently bonded to a second binder moiety, selecting the proportion of the first charge transport moiety in the first polymeric compound to be less than the proportion of the second charge transport moiety in the second polymeric compound.
    • 一种感光体制造方法,包括:(a)沉积电荷产生层; (b)沉积具有第一电荷载流子迁移率值的第一电荷传输层; 和(c)沉积具有不同于第一电荷载流子迁移率值的第二电荷载流子迁移率值的第二电荷传输层; 其中步骤(a),(b)和(c)以任何顺序发生,其中所述第一电荷载流子迁移率值和所述第二电荷载流子迁移率值之间的差异是通过:(i)其中所述第一电荷传输层包括 第一粘合剂和第一电荷输送材料,并且第二电荷输送层包括第二粘合剂和第二电荷输送材料,选择第一粘合剂以对第一电荷输送材料具有比第二粘合剂的溶解度极限更小的溶解度极限 用于第二种电荷输送材料; 或(ii)其中第一传输层包括由共价键合到第一粘合剂部分上的第一电荷传输部分组成的第一聚合化合物,第二传输层包括第二聚合化合物,第二聚合化合物由共价键合到第二传输部分的第二电荷传输部分组成 粘合剂部分,选择第一聚合物中第一电荷输送部分的比例小于第二聚合物中第二电荷输送部分的比例。