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公开(公告)号：US11099323B2
公开(公告)日：2021-08-24
申请号：US16978717
申请日：2018-05-28
Applicant: SOUTHEAST UNIVERSITY
Inventor： Xiaoyang Zhang , Tong Zhang , Shanjiang Wang , Xiaomei Xue , Huanli Zhou
Abstract: The present invention provides a surface plasmon-optical-electrical hybrid conduction nano heterostructure and a preparation method therefor. The structure includes an exciting light source, a semiconductor nano-structure array, a two-dimensional plasmonic micro-nano structure, a sub-wavelength plasmon polariton guided wave, an emergent optical wave, a one-dimensional plasmonic micro-nano structure, a wire, a metal electrode, a conductive substrate, a probe molecule, an atomic-force microscopic conductive probe and a voltage source. The method achieves a semiconductor seed crystal with controllable distribution and density by controlling free metal ions, air, water or oxygen on a metal substrate to achieve highly uniform control of the seed crystal, and then strictly controls a length-to-diameter ratio and distribution of a semiconductor structure by continuous growth. Therefore, a new nano optics platform is provided for studying various novel effects produced by interaction between light and substances.
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公开(公告)号：US10964830B2
公开(公告)日：2021-03-30
申请号：US16970638
申请日：2018-05-28
Applicant: SOUTHEAST UNIVERSITY
Inventor： Tong Zhang , Shanjiang Wang , Xiaoyang Zhang
IPC: H01L31/0352 , H01L31/109
Abstract: A surface plasmon-semiconductor heterojunction resonant optoelectronic device and a preparation method thereof are provided. A surface ligand molecule is modified on a plasmonic nanostructure, a plasmonic crystal face structure is bound to the surface ligand molecule, a semiconductor nanostructure seed crystal is located on the plasmonic crystal face structure, a one-dimensional semiconductor nanostructure is located on the semiconductor nanostructure seed crystal, and all parts are in tight contact. The heterogeneous integration material achieves a lattice match at an interface, greatly reduces a loss caused by defects and rough crystal faces, and can achieve direct coupling of a surface plasmon mode and an optical mode. The heterogeneous integration material has a large application prospect in the fields of a nanolaser, a nano heat source and photoelectric detection and photocatalysis.
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公开(公告)号：US11446647B2
公开(公告)日：2022-09-20
申请号：US16771298
申请日：2018-05-28
Applicant: SOUTHEAST UNIVERSITY
Inventor： Xiaoyang Zhang , Tong Zhang , Shanjiang Wang , Yu Ji , Minghu Zhao , Linfeng Zhao
IPC: B01J31/16 , B01J31/38 , B01J31/26 , B01D53/86 , B01D39/14 , B01J35/00 , B01J35/06 , B01J37/04 , B01J37/06 , B01J37/34 , B01J27/04 , B01J21/06 , B01J23/06 , B01D39/16 , B01J35/02 , B01J23/50 , B01J23/66 , B01J37/00
Abstract: A method for preparing a porous nano-fiber heterostructure photocatalytic filter screen includes: preparing a noble metal nanostructure with tunable spectra and a heterostructure composite photocatalyst of a photocatalytic material; and preparing a large area and multilayer porous nano-fiber filter screen structure, while utilizing a scattering enhancement effect of metal nanoparticles in an porous optical fiber to realize repeated conduction of sunlight in the optical fiber and finally interact with the composite photocatalyst on a surface to improve photocatalytic efficiency. Preparation of the heterostructure composite photocatalyst with a wide spectral response of and tunable visible to infrared band spectra is realized, at the same time, with reference to high adsorbability, high light transmission of nanometer fiber and unique optical characteristics of metal nanoparticles, an air purification filter screen with a high sunlight utilization rate and a high catalytic degradation capability is creatively provided.
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