Ultraviolet photovoltaic detector with ZnO nanorod and phenanthrene nano heterogeneous composite structure
A composite structure and ultraviolet light technology, applied in the field of preparation of ultraviolet photovoltaic detectors, can solve the problems of serious carrier recombination, low detection performance and sensitivity, and achieve good stability, improved detection performance and sensitivity, and efficient luminescence performance. Effect
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Embodiment 1
[0034] Embodiment 1: An ultraviolet photovoltaic detector with a heterogeneous composite structure of ZnO nanorods and phenanthrene nanometers, the base 2 is a glass sheet substrate; a 180nm thick high-performance material ITO is deposited on the glass sheet substrate as the positive electrode layer 3; the positive electrode The electrode layer 3 is spin-coated with a 200nm ZnO seed layer 4, and the ZnO nanorod array 5 with a diameter of 50-200nm and a length of 2-3 μm is epitaxially grown on the ZnO seed layer 4 by a hydrothermal method; The ethanol solution of the organic phenanthrene is placed on the ZnO nanorod array 5, and the substrate is dried to volatilize the ethanol to form the ZnO nanorod and the phenanthrene functional layer 6; Gold wires 8 are used to lead out the electrodes on the layer 6 to form the ultraviolet photovoltaic detector structure of the present invention.
[0035] The ultraviolet photovoltaic detector of the present invention is prepared by the foll...
Embodiment 2
[0045] Example 2: (1) Spin-coat ZnO seed solution on ITO with a homogenizer to obtain a uniform ZnO seed layer, and then anneal in an air atmosphere to obtain a ZnO seed layer with a thickness of about 200 nm; On the crystal layer, the oriented ZnO nanorod array is epitaxially grown by hydrothermal method to form a uniform ZnO nanorod array. The nanorods are 50-200nm in diameter and 2-3μm in length. Other steps are with embodiment 1.
Embodiment 3
[0046] Example 3: Spin-coat the ethanol solution of phenanthrene by spin coating with a homogenizer, drop 50 μL of the ethanol solution of phenanthrene to cover the substrate, adjust the speed of the homogenizer to 1000 rpm and rotate for 30 seconds, so that the ethanol solution of phenanthrene fully penetrates Put the substrate into the ZnO nanorod array, and then place the substrate on a heating plate at 80°C for 30 minutes, so that the ethanol solution will completely evaporate, and the phenanthrene will be coated on the surface of the ZnO nanorods, and a nano-heterogeneous composite structure of ZnO nanorods and phenanthrenes will be obtained.
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