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    • 9. 发明授权
    • Ultraviolet sensor and method for manufacturing the same
    • 紫外线传感器及其制造方法
    • US09064990B2
    • 2015-06-23
    • US13706435
    • 2012-12-06
    • Murata Manufacturing Co., Ltd.
    • Kazutaka Nakamura
    • H01L31/0296H01L31/109H01L31/18H01L31/0328
    • H01L31/0296H01L31/0328H01L31/109H01L31/18H01L31/1828
    • An ultraviolet sensor has a p-type semiconductor layer composed of a solid solution of NiO and ZnO, and an n-type semiconductor layer composed of ZnO and joined to the p-type semiconductor layer such that a part of the surface of the p-type semiconductor layer is exposed. In the p-type semiconductor layer, trivalent Ni is contained in a crystal grain in a state of being solid-solved with the solid solution of NiO and ZnO. The trivalent Ni can be contained in the crystal grain of the p-type semiconductor layer by adding NiOOH to NiO and ZnO, and firing the resulting mixture. Thereby, an inexpensive ultraviolet sensor capable of being downsized, which can easily detect the intensity of ultraviolet light by a photovoltaic power without utilizing a peripheral circuit can be realized.
    • 紫外线传感器具有由NiO和ZnO的固溶体构成的p型半导体层和由ZnO构成的n型半导体层,并与p型半导体层接合,使得p型半导体层的p型半导体层的一部分, 型半导体层露出。 在p型半导体层中,利用NiO和ZnO的固溶体固溶的状态,在晶粒中含有3价Ni。 通过向NiO和ZnO中添加NiOOH,可以在p型半导体层的晶粒中含有三价Ni,并烧结所得到的混合物。 因此,可以实现能够小型化的便宜的紫外线传感器,其可以在不利用外围电路的情况下容易地通过光伏电力检测紫外光的强度。