6results about How to "Reduce holes" patented technology

The present disclosure provides a light-emitting diode with improved peeling and tearing and a preparation method thereof, and belongs to the technical field of optoelectronic manufacturing. The light-emitting diode comprises an epitaxial layer, a functional stack layer, an electrode and a filling layer. The functional stack layer is located on the epitaxial layer, and the electrode is located on the functional stack layer and electrically connected with the epitaxial layer. The surface of the functional stack layer away from the epitaxial layer comprises a stepped surface, and the filling layer is located on the stepped surface. The embodiment of the present disclosure can improve the problem that the bonding metal is easily torn and damaged during laser peeling, and improve the reliability of the light-emitting diode.

This disclosure relates to the photovoltaic field, providing a photovoltaic cell and its manufacturing method, a tandem cell, and a photovoltaic module. The manufacturing method of the photovoltaic cell includes: providing a cell substrate having two surface sides opposite each other along a first direction; printing a first paste on at least one surface side, the first paste including at least first conductive particles and second conductive particles, both the first and second conductive particles containing silver, and the silver content of the first conductive particles being lower than that of the second conductive particles; modifying the first paste to transform it into a transport layer, the modification treatment including a first stage and a second stage, wherein the energy density provided to the first paste in the first stage is lower than the energy density provided to the first paste in the second stage. This disclosure at least helps to improve the conductivity of the formed transport layer while simplifying the preparation process of the transport layer.

This invention discloses a thin-film solar cell with synergistic passivation and field-effect modulation functions, and its fabrication method, belonging to the field of solar cell technology. The core of this invention lies in introducing an ultrathin barium titanate (BaTiO3) interlayer between the back electrode and the CZTSSe absorber layer. This interlayer not only passively blocks electron backflow and suppresses interfacial recombination by utilizing its large conduction band offset with CZTSSe, but more importantly, it can induce BaTiO3 absorption during high-temperature selenization. 2+ Cu in CZTSSe + Non-equivalent cation migration and exchange occur, thereby actively constructing a directionally favorable cation migration and exchange-induced built-in electric field (CME-field) within the quasi-neutral region of the absorber layer, synergistically promoting the collection of photogenerated holes. This invention achieves a synergistic effect of "passive blocking" and "active driving," significantly improving battery performance and increasing the photoelectric conversion efficiency of battery devices to 14.00%.

The utility model relates to textile machinery technical field discloses a kind of knitted fabric density's knitted fabric machine head structure, including needle body and positioning box, the top of needle body is fixedly connected with the locking assembly for being locked with external structure, the top of locking assembly is fixedly connected with sharp needle, the inside of positioning box is slidably connected with sliding box, the inside of sliding box is equipped with two card mouth, the inner wall of sharp needle is slidably connected in the positioning box, the inner wall of card mouth is movably connected with movable ball, the inner wall of sliding box is fixedly connected with magnetic disc, in the utility model, external connecting rod drives sharp needle to change position, so that two movable balls are clamped into the inner wall of two buckles, when needle head knits, its top is using magnetic attraction locking detachable connection structure, the quick installation and replacement of needle head are facilitated, production efficiency is improved, and connection is stable.

This invention relates to a method for fabricating a light-emitting element based on an ultra-smooth interface composite functional transparent conductive layer, comprising the following steps: (1) providing a substrate and performing epitaxial growth; (2) growing a composite functional layer with a thickness of 5-10 nm on the surface of the epitaxial structure; (3) polishing the composite functional layer to ensure that the surface roughness Ra < 0.2 nm; (4) defining the photonic crystal pattern and etching photonic crystal pre-holes in the composite functional layer; (5) depositing the composite transparent conductive layer: firstly, using an atomic layer deposition system (ALD), filling the photonic crystal pre-holes with an ITO material of an indium-tin weight ratio of 90:10, and then growing a second ITO layer with a thickness of 30 nm and an indium-tin weight ratio of 95:5 as a current diffusion layer by sputtering or ion beam deposition, and finally performing high-temperature thermal annealing; this invention optimizes the light extraction efficiency and current diffusion performance of the device by combining fundamental planarization of the substrate interface with the precise fabrication of nanophotonic structures.

The application relates to the technical field of ceramic preparation, and provides a preparation method of high-thermal-conductivity aluminum nitride ceramic, which solves the problems of relatively poor thermal conductive performance and bending strength of the aluminum nitride ceramic prepared by the prior art; the method comprises the following preparation steps: 1) raw material preparation; 2) ball milling mixing; 3) preheating reduction; and 4) hot-pressing sintering.