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    • 2. 发明授权
    • Electrophotographic photoreceptors containing titanyl phthalocyanine
processed through ammoniated complex, and method for production thereof
    • 含有通过氨化络合物处理的氧钛酞菁的电子照相感光体及其制备方法
    • US5567559A
    • 1996-10-22
    • US420180
    • 1995-04-11
    • Chen-Jen YangTsong-Shin JeanLung-Tarn WuChing-Liang YangKuei-Fei Teng
    • Chen-Jen YangTsong-Shin JeanLung-Tarn WuChing-Liang YangKuei-Fei Teng
    • C09B67/18C09B67/50G03G5/06
    • G03G5/0696C09B67/002C09B67/0026
    • An ammonia-modified titanyl phthalocyanine for use in preparing charge generating layer of a photoreceptor is disclosed. The ammonia-modified titanyl phthalocyanine is obtained by a process comprising the following steps: (a) reacting titanium tetrachloride with halogen-containing naphthalene to obtain an unmodified titanyl phthalocyanine; (b) dispersing the unmodified titanyl phthalocyanine in an organic solvent; and (c) subjecting the unmodified titanyl phthalocyanine to an ammonia-induced complexation-mediated crystal transformation so as to obtain the ammonia-modified titanyl phthalocyanine. The ammonia-induced complexation-mediated crystal transformation step can be achieved by either bubbling ammonia gas through the titanyl phthalocyanine-containing organic solution or by adding an ammonia-saturated aqueous solution to the titanyl phthalocyanine-containing organic solution. The ammonia-modified titanyl phthalocyanine is characterized by having Bragg diffraction angles of 7.5, 9.3, 13.6, 14.3, 17.9, 24.0, 27.2, and 29.1 degrees, and vibrational absorption resonances at 1492 cm.sup.-1, 1416 cm.sup.-1, 1333 cm.sup.-1, 1120 cm.sup.-1, 1072 cm.sup.-1, 962 cm.sup.-1, 894 cm.sup.-1, 752 cm.sup.-1, and 731 cm.sup.-1. The photoreceptor shows excellent spectral sensitivity at wavelengths in the near-infrared range (750-825 nm), and excellent cyclic stability evidenced by the observed negligible changes in the dark development potential after prolonged exposure cycles.
    • 公开了一种用于制备感光体电荷产生层的氨改性氧钛酞菁。 通过包括以下步骤的方法获得氨改性的氧钛酞菁:(a)使四氯化钛与含卤素的萘反应,得到未改性的氧钛酞菁; (b)将未改性的氧钛酞菁分散在有机溶剂中; 和(c)使未改性的氧钛酞菁经受氨诱导的络合介导的晶体转变,以获得氨改性的氧钛酞菁。 氨诱导的络合介导的晶体转变步骤可以通过使氨气鼓泡通过含钛酞菁的有机溶液或通过向含钛酞菁的有机溶液中加入氨饱和水溶液来实现。 氨改性的氧钛酞菁的特征在于布拉格衍射角为7.5,9.3,13.6,14.3,17.9,24.0,27.2和29.1度,在1492cm-1,1416cm-1,1333cm -1处的振动吸收共振, 1,1120cm-1,1072cm -1,962cm -1,894cm -1,752cm -1和731cm -1。 感光体在近红外范围(750-825nm)的波长处显示出优异的光谱灵敏度,以及在长时间暴露周期后观察到的暗显显示电位的可忽略变化所证明的良好的循环稳定性。
    • 3. 发明授权
    • Infrared sensitive electrophtographic photoreceptors and method for
tuning photosensitiviey thereof
    • 红外线感应电摄影光感受器及其光敏度调节方法
    • US6068958A
    • 2000-05-30
    • US137876
    • 1998-08-20
    • Chen-Jen YangKuo-Chu YehTsong-Shin JeanKai-Der Ker
    • Chen-Jen YangKuo-Chu YehTsong-Shin JeanKai-Der Ker
    • G03G5/06
    • G03G5/0696
    • A family of photoreceptors for use in electrophotography are disclosed which contain a binary charge generation composition of oxytitanium phthalocyanine and copper phthalocyanine. The charge generation composition exhibits adjustable photosensitivity by adjusting a ratio between said oxytitanium phthalocyanine and said copper phthalocyanine. To optimize its performance, the charge generation composition is subject to an ammonia-modified complexation-mediated crystal transformation, and the resultant composition is characterized by Bragg diffraction angles (2.theta..+-.2.degree.) of 7.7, 9.4, 10.7, 13.3, 15.2, 15.7, 26.3, 27.4, and 28.4 degrees with respect to the CuK.alpha. characteristic X-ray wavelength at 1.54 .ANG. and absorption maxima centered around 615, 690, and 770 nm in the optical absorption spectrum. The photosensitivity of the charge generation composition can be modulated according to the formula of ##EQU1## where i denotes each component in the charge generation mixture, X is the molar fraction V.sub.ddp is the dark development potential and E.sub.1/2 is the half decay energy.
    • 公开了一种用于电子照相术的感光体,其包含氧钛酞菁和铜酞菁的二元电荷产生组合物。 电荷产生组合物通过调节所述氧钛酞菁和所述铜酞菁之间的比例显示出可调节的光敏性。 为了优化其性能,电荷产生组合物经受氨修饰的络合介导的晶体转变,所得组成的特征在于布拉格衍射角(2θ+/- 2°)为7.7,9.4,10.7,13.3, 相对于1.54 ANGSTROM处的CuKα特征X射线波长为15.2,15.7,26.3,27.4和28.4度,在光吸收光谱中以615,690和770nm为中心的吸收最大值。 电荷产生组合物的光敏性可以根据其中i表示电荷产生混合物中的每个组分的公式来调节,X是摩尔分数Vddp是暗显影电位,E + E,fra 1/2 + EE是 半衰能量。