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    • 5. 发明申请
    • ELECTRO-MEDICAL IMAGING APPARATUS HAVING CHALCOGEN-THIN FILM TRANSISTOR ARRAY
    • 具有薄膜薄膜晶体管阵列的电医学成像装置
    • US20080217547A1
    • 2008-09-11
    • US12023822
    • 2008-01-31
    • Sang Su LeeKibong Song
    • Sang Su LeeKibong Song
    • G01T1/24H01L31/0272
    • H01L27/14676G01T1/24H01L27/14632H01L27/14696H01L31/0272H01L31/0296H01L31/0749
    • Provided is an electro-medical imaging apparatus manufactured using a thin film transistor (TFT) array including chalcogen-based semiconductor elements that can generate and store an electric signal from an X-ray signal so as to be able to replace a traditional film type X-ray reader. The electro-medical imaging apparatus includes: a signal generating unit where electron-hole pairs are formed by absorbing an optical energy irradiated from outside; a power source connected to a surface of the signal generating unit and applies an electric signal so as to separate the electron-hole pairs to be accumulated each in opposite sides of the signal generating unit according to their polarities; a signal storage unit that is in contact with the signal generating unit and receives and stores one of the separated charges; and a signal converter that is in contact with the signal storage unit and applies a control signal to the signal storage unit in order to convert an electric signal, which generated by the charges stored in the signal storage unit, into an image signal. The signal generating unit may use amorphous selenium (a-Se), which is one of chalcogen materials, or CdTe or CdZnTe which is a compound material using chalcogen. Also, the signal storage unit may include a TFT array including Ge2Sb2Te5 (GST) or a TFT array including CuInSe2 (CIS).
    • 提供了一种使用包括基于硫族基的半导体元件的薄膜晶体管(TFT)阵列制造的电医学成像装置,其可以生成并存储来自X射线信号的电信号,以便能够代替传统的胶片类型X 阅读器 电子医学成像装置包括:信号发生单元,其中通过吸收从外部照射的光能形成电子 - 空穴对; 电源,连接到所述信号发生单元的表面,并且施加电信号,以便根据它们的极性将每个信号发生单元的相对侧的每个电子 - 空穴对分离; 信号存储单元,其与所述信号生成单元接触并接收并存储所述分离的电荷之一; 以及信号转换器,其与信号存储单元接触并向信号存储单元施加控制信号,以便将由存储在信号存储单元中的电荷产生的电信号转换为图像信号。 信号发生单元可以使用作为硫属元素材料之一的无定形硒(a-Se),或使用硫属元素的复合材料的CdTe或C​​dZnTe。 此外,信号存储单元可以包括包括Ge 2 Sb 2 Te 5(GST)的TFT阵列或包括CuInSe 2 (CIS)。
    • 6. 发明授权
    • Method of manufacturing a graphene fiber
    • 制造石墨烯纤维的方法
    • US09133035B2
    • 2015-09-15
    • US13619935
    • 2012-09-14
    • Yong Ju YunKibong Song
    • Yong Ju YunKibong Song
    • C01B31/04B82Y30/00B82Y40/00D01F9/12D01F6/60D01D5/00
    • C01B31/0476B82Y30/00B82Y40/00C01B32/192D01D5/003D01F6/60D01F9/12
    • A method of manufacturing a graphene oxide composite fiber includes forming a supporting fiber having positive charges thereon; forming a solution containing graphene oxide having a negative charge thereon to provide a graphene oxide-containing solution; coating the supporting fiber with the graphene oxide-containing solution; and permitting self-assembly of the graphene oxide of the graphene oxide -containing solution and the supporting fiber by an attraction between the positive and negative charges to form the graphene oxide composite fiber. The method may include coating the supporting fiber with a solution containing a material having an amine group to provide a positive surface charge on the supporting fiber. The method may include reducing the graphene oxide composite fiber to a graphene composite fiber, such as by one of a thermal reduction method, an optical reduction method, and a chemical reduction method. Large-area graphene fiber structures having high strength, flexibility, and porosity are enabled.
    • 制造石墨烯氧化物复合纤维的方法包括在其上形成具有正电荷的支撑纤维; 在其上形成含有负电荷的石墨烯氧化物的溶液以提供含氧化石墨烯的溶液; 用含石墨烯氧化物溶液涂覆支撑纤维; 并且通过正电荷和负电荷之间的吸引力允许含石墨烯氧化物的溶液和支撑纤维的氧化石墨烯自组装以形成石墨烯氧化物复合纤维。 该方法可以包括用含有胺基的材料的溶液涂覆支持纤维,以在支撑纤维上提供正表面电荷。 该方法可以包括通过热还原法,光学还原法和化学还原法中的一种将石墨烯氧化物复合纤维还原成石墨烯复合纤维。 能够实现具有高强度,柔性和孔隙率的大面积石墨烯纤维结构。