485results about How to "Increase light receiving area" patented technology

The present invention relates to the preparation of high activity TiO2 photocatalyst with porous ceramic base, and is especially the nano titania powder and titania sol combining process of preparing regenerable high activity nano titania carried in porous ceramic. The present invention prepares the high activity nano titania carried in porous ceramic through the combination of two carrying processes, titania powder sintering process and sol-gel process. The process includes preparing titania sol via sol-gel process, mixing titania sol and titania powder in certain ratio while stirring and adding dispersant and adhesive to form new solution, carrying the solution to the surface of porous ceramic, fumigating the carrying ceramic in water vapor atmosphere to eliminate most of the organic matters, and final sintering at high temperature for strong combination between nano titania and carrier and raised activity of titania.

There are provided a TFT, a TFT substrate using the TFT, a method of fabricating the TFT substrate, and an LCD. The TFT includes a source region, a drain region, and a gate electrode having an opening. The opening of the gate electrode is to enhance the light sensing ability of the TFT when it is used as a light sensor, since light is incident into a region where the opening is formed. The TFT including the gate having the opening can be used in a substrate of a flat display or an LCD using such a substrate. The above TFT can sense light incident from outside the display to adjust the brightness of the screen according to the external illumination.

In a dye sensitizing solar cell 1 wherein an electrolyte 4 is filled in a space between a photoelectrode 2 and a counter electrode 3, recesses 8 are formed in the surface 5a of a substrate member 5 of the photoelectrode 2, and a transparent electrode film 6 is formed on the surface of the substrate member 5 to form recessed portions 10 in the transparent electrode film 6. On the transparent electrode film 6 of the photoelectrode 2 with this construction, a porous semiconductor electrode film 7 is formed, and a sensitizing dye is absorbed and carried on the porous semiconductor electrode film 7.

The invention discloses a single component HJT battery low temperature silver paste comprising the following components by weight: 50-90 parts of first conductive powder, 5-40 parts of second conductive powder, 1-2 parts of thermosetting resin, 0-5 parts of curing agent and 0-5 parts of auxiliary agent. The first conductive powder is flake silver powder, and the second conductive powder is at least one of nano conductive powder, low melting point conductive metal powder, low melting point conductive alloy powder, high melting point conductive metal powder and high melting point conductive alloy powder. The HJT battery low temperature silver paste has low resistivity after cured, good adhesion of conductive particles, good over-net performance, excellent aspect ratio, photolysis resistance,aging resistance and lower cost.

The invention relates to the photovoltaic or semiconductor field, in particular to a solar cell string and a solar cell component for ground power generation and a solar cell plate thereof. The solar cell string for ground power generation is characterized in that the cell plate is 3-40cm long, 1-15cm wide and 0.08-2mm thick, the front face of the cell plate is provided with fine grids, the line width of the fine grids is 10-200 microns, the spacing of the fine grids is 1-10mm, one end of the fine grids of the cell plate is connected with the back surface of a cell plate with an identical structure through bus bars in a welding way, and the direction of the bus bars is identical to the direction of the fine grids of the cell plate. Since the light receiving area of the cell plate is larger than the light receiving area of the existing cell plate, the invention improves the conversion efficiency of the cell plate. Moreover, since short bus bars are connected between the cell plates of the solar cell string provided in the invention, the current movement distance is short and is about one hundredth of the existing structure, thereby reducing the electric quantity loss of the solar cell component as well as the material cost.

The invention discloses a full-automatic light chasing clothes hanger, and solves the problem that a clothes hanger has a poor airing effect and cannot automatically collect clothes in rainy and windy weather in the prior art. The full-automatic light chasing clothes hanger comprises a hanger integrated with a single chip microcomputer, a raindrop sensor and an atmospheric pressure sensor; the hanger is provided with a screw rod driven by a step motor; the screw rod is in threaded connection with a sliding table; the bottom of the sliding table is fixedly provided with a clothes plate; the clothes plate is provided with a direct-current gear motor; the output end of the direct-current gear motor is provided with a hook; the hook is integrated with a photosensitive sensor for controlling the direct-current gear motor; the raindrop sensor, the atmospheric pressure sensor and the like are controlled by the single chip microcomputer. According to a sunflower principle, the full-automatic light chasing clothes hanger can automatically adjust an angle along with the sunlight so as to allow clothes to have the maximal light receiving area; by an intelligent design, the full-automatic light chasing clothes hanger has a function of automatically collecting the clothes in windy, rainy and other special weather. The clothes hanger has a higher intelligent level and better clothes airing effect, and the efficiency of airing the clothes is greatly improved.

An optical fiber transmission device based on hollow light guiding cone coupling for vacuum-transmitting high-capacity laser is provided. A hollow light guiding cone is connected to the input end of the optical fiber, and small injection light spots are obtained by the hollow light guide cone to implement laser optical fiber coupling transmission. The hollow light guiding cone and the interior of the optical fiber are vacuumed or injected with inert gas to enlarge laser capacity of the optical fiber transmission system and enhance output beam quality. The invented device enlarges the lighted area on the laser input end surface effectively, reduces laser power density of the input end surface, and lowers laser damage probability. Linear and nonlinear wastage is decreased by vacuuming the laser transmission path, and the transmission efficiency of the optical fiber transmission system is increased. The invented device is provided with a simple structure, strong innovation and an evident effect.

The invention discloses a method for improving photoelectric conversion efficiency of a crystal silicon solar battery. The method is characterized in that: based on the conventional crystal silicon solar battery process, high-doped parallel linear arrays are formed on the surface of an emitter by adopting processes such as screen printing or local laser annealing and the like; and the high-doped parallel linear arrays are crossed with fine grids of a metal electrode in a vertical or certain angle mode. The method improves the ohmic contact of the metal grid electrode and silicon, and meanwhile reduces the number of the required fine grids so as to reduce the shading area and improve the photoelectric conversion efficiency of the crystal silicon solar battery. The method has low equipment investment, does not need to change other conventional process equipment, and is suitable for large-scale industrialized production.

A solar panel of the present invention includes a plurality of solar cells arranged in a substantially circular shape, and a plurality of connection sections which are provided near a center portion where the plurality of solar cells are all close to each other, and electrically connect the plurality of solar cells. Therefore, the plurality of connection sections can be centrally placed near the center portion where the plurality of solar cells are all close to each other. As a result, a decrease in the light-receiving area due to the plurality of connection sections can be reduced, and fluctuations in the light-receiving area due to pointers moving over the solar cells can be reduced.

The invention discloses a high-efficiency crystalline silicon cell with a next-generation structure and a manufacturing method for the high-efficiency crystalline silicon cell, and belongs to the field of crystalline silicon solar cells. The method comprises: a silicon oxide passivation step of forming a layer of silicon oxide film on the phosphorus-doped surface of a P-type silicon chip; an aluminum oxide passivation step of forming a layer of aluminum oxide film on the undoped surface of the P-type silicon chip; a metal wrap through (MWT) technology step of leading the anode of the cell to a back surface by adopting laser boring; and a new grid line formation step of adopting electroplating and sputtering. By the cell and the method, MWT is effectively combined, and the passivation of double film layers on a front surface and the passivation of aluminum oxide on the back surface are realized; due to the adoption of novel cell formation schemes such as electroplating, sputtering and the like, dependence on screen printing silver paste is overcome, and simultaneously resistance produced by electrodes is decreased; and the efficiency of a P-type monocrystalline cell can be improvedto over 20 percent, and the efficiency of a P-type polycrystalline cell can be improved to over 18 percent.

The invention relates to a solar battery, in particular to a back contact heterojunction solar battery based on an N-type silicon slice. According to a back face feature, the back contact heterojunction solar battery is divided into an N-type region and a P-type region, wherein the N-type region forms an N+a-si/i-a-si/N-c-si/N+c-si heterojunction structure; and the P-type region forms an N+a-si/i-a-si/N-c-si/N+c-si/i-a-si/P-a-si heterojunction structure. In the solar battery, the light attenuation phenomenon of the conventional P-type crystal silicon solar battery can be avoided; the solar battery has higher spectral response; the thickness of the solar battery is greatly reduced compared with that of the conventional crystal silicon solar battery; electrodes are all printed on the back face of the battery, so the problem that the front electrode of the conventional solar battery blocks light is solved; therefore, the conversion efficiency of the solar battery is improved greatly; by a low-temperature sintering process, a production process is simplified greatly and production cost is reduced; and the solar battery is applicable to industrialized production.

The invention discloses a crystalline silicon solar Metal Wrap Through (MWT) battery and a manufacturing method thereof. The MWT battery is characterized in that conduction of an upper punched electrode and a lower punched electrode is realized by a unique splay distributed punching way; after a bare wafer is punched, steps of wool making, dispersing, Phosphosilicate Glass (PSG) removing, Plasma Enhanced Chemical Vapor Deposition (PECVD), silk screen printing, sintering and laser isolation are carried out, wherein the silk screen printing step is specifically as follows: printing a back positive electrode and a back negative electrode simultaneously; printing a back electric field; and printing front grid lines and front pore filling grid lines simultaneously. Mutual connections of battery pieces are all realized on the back through a traditional welding technique, and the back negative electrode (or the back negative electrode) of the battery piece is serially welded with the back negative electrode (or the back negative electrode) of the battery piece, thus realizing the high compatibility of the manufacturing method with the traditional assembling technique and solving the problem of the MWT battery on the market at present in high assembling cost; and the light shading area of the surface of the battery is reduced from 5-7% of the traditional H-type battery to about 3% of the MWT battery, so that the purposes of increasing the efficiency and reducing the cost are achieved.

The invention relates to a thin film solar cell assembly and a fabrication method thereof, and specifically relates to an interconnected flexible solar cell and a fabrication method thereof. The flexible solar cell comprises at least two flexible solar cell units. Each flexible solar cell unit comprises a flexible cell substrate, a semiconductor material layer and a light receiving layer which are stacked successively. The light receiving layer is provided with a conductive bus bar. In two adjacent flexible solar cell units, the edge of the light receiving layer of one flexible solar cell unit is overlapped with the edge of the flexible cell substrate of the other flexible solar cell unit. A conductive connection structure is arranged between the conductive bus bar on the light receiving layer and the flexible cell substrate. The invention further discloses a fabrication method of the interconnected flexible solar cell. According to the invention, the advantage of easy process operation can be realized, the ohmic contact is easy to form, the light receiving area of the solar cell can be increased, and the advantage of good safety performance can be realized.

A solid state imaging apparatus includes a plurality of photoelectric conversion sections formed in an imaging area of a silicon substrate, and an embedded layer embedded in an isolation trench formed in at least one part of the silicon substrate located around the photoelectric conversion sections. The embedded layer is made of an isolation material having a thermal expansion coefficient larger than silicon oxide and equal to or smaller than silicon.

The invention discloses an MWT solar cell module in which only one electrode of each MWT solar cell is provided with a back main gate for being connected with a corresponding fine gate line. The back main gate guides current to front main gate of the corresponding MWT solar cell by virtue of a plurality of small holes passing through the corresponding MWT solar cell from top and bottom. The other electrode of each MWT solar cell has a fine gate and no main grid. The MWT solar cell module of the invention does not have any gate line on the front side to shield the light, and there is no gap between the MWT solar cells so that the efficiency of the module is improved. Since a plurality of cells are divided, the current of each cell strings is reduced so as to decrease the impact of thin gate line resistance loss, thereby reducing the consumption of silver paste and increasing the fill factors the cells and the MWT solar cell module.

The invention discloses a chicken and duck mixed ecological culturing technical method under rice ladder-type cultivation, and belongs to a culturing method. The method comprises the following steps of: forming ridges in a rice field with enough base fertilizer; after the rice is cultivated for 3 to 7 days, putting 15 to 20 young ducks of 20 to 40 days into the rice field; keeping a water layer of over 5 centimeters for a long term in a ditch between two ridges; at the tillering final stage of the rice or at the differentiation initial stage of young ears, putting 15 to 20 chickens of 35 to 45 days into the rice field; and from the growth stage to the grain filling stage of the rice, taking back the chickens and the ducks in time from the field. The method has the advantages that: the land area is fully utilized, and the light area is increased; the chickens are fed movably on the ridges, the ducks are fed movably in the ridge ditches, and the rice is grown on the ridges; chicken manure and dust manure are directly returned to the field, and the application amount of inorganic fertilizer is reduced; the residue amount of the pesticide in the rice and the soil is reduced; the water is saved; and the added value of the rice is increased, and the income of peasants is improved.

Laser light emitted by a light emitting element is made parallel light by a collimation lens, passes through an aperture of an aperture mirror, and is then angularly scanned in a plane substantially parallel to a display screen by rotation of a polygon mirror and projected onto a recurrence reflection sheet. Then, after the reflected light from the recurrence reflection sheet is reflected by the polygon mirror and aperture mirror, the light is focused by a condenser lens to enter a light receiving element. The aperture mirror has an asymmetrical shape in the scanning direction and/or the vertical direction about the optical axis, according to a scanning surface opening width of the polygon mirror.

The invention belongs to the field of crop planting, in particular to a high-efficiency corn cultivation method in saline-alkali land. The high-efficiency corn cultivation method in the saline-alkaliland includes the following specific cultivation steps: soil improvement, flat land preparation and application of base fertilizer, corn sowing and film covering, irrigation and fertilization. The method achieves the aim of improving corn emergence rate, seedling preservation rate, water and fertilizer utilization efficiency and further improving corn yield by improving the corn planting method and optimizing the irrigation and fertilization system, breaks through the technical bottleneck of difficult corn planting and improvement in saline-alkali land in low-lying areas, and can play a technical supporting role in efficient improvement and utilization of saline-alkali land and improvement of ecological environment. On the one hand, ridge film furrow planting can effectively reduce the evaporation and consumption of soil moisture, and thus water collection and moisture preservation are favorable, so that crop yield and water use efficiency are improved; on the other hand, the utilization of groundwater can be further promoted, the groundwater level is lowered, and the phenomenon of soil salinization is reduced.

A pontoon and water flow power generation combined power station comprises a pontoon. A belt hydraulic engine type water flow power generation device, a solar power generation device and/or wind driven power generation device are arranged on the pontoon, and the belt hydraulic engine type water flow power generation device is provided with an automatic working water level regulating unit, a super-flood preventing unit and a float cleaning unit. A belt hydraulic power generator, a magnetic suspension wind driven power generator and a solar power generator are assorted mutually and are integrated with the shore supply to realize interaction and compensation, and specifically, power generated from flood and/or wind and solar energy in peak periods is fed back to the shore supply, and the shore supply resupplies power for the pontoon when in off-peak periods of flood and/wind and solar energy, so that uninterrupted power supply is formed, and the multipurpose pontoon with new clean energy self-generating devices is assembled. Besides, automatic control and dispatching of various power supplies can be realized, and accordingly the pontoon and water flow power generation combined power station has the advantages of operational simplicity, safety and reliability, high efficiency, adaptability to non-professional management, and can be used as a composite marine facility with double functions of the pontoon and the power station or can be used as a special shore power station utilizing integral energy.