338results about How to "Improve photoelectric conversion performance" patented technology

An organic photoelectric conversion material for use in an organic thin-film photoelectric conversion device, containing a compound represented by formula 1; and an organic thin-film photoelectric conversion device having a photoelectric conversion layer which containing the organic photoelectric conversion material:wherein D represents an electron-donating aromatic substituent whose bonding site atom is a sp2 carbon atom; and a plurality of D may be the same or different from each other.

A photoelectric conversion element having a composite dye and an n-type semiconductor, the composite dye having a plurality of component dyes which have different excitation levels and which are chemically bonded to each other to form a straight chain or branched structure for transferring an electron therethrough, wherein the straight chain or branched structure is, at one end thereof, secured to the n-type semiconductor and has, at least at one other end thereof, a free end, wherein, in the straight chain or branched structure, the plurality of component dyes are arranged in an order such that the excitation levels of the plurality of component dyes are decreased as viewed from the one end of the structure toward the at least one other end of the structure.

The invention belongs to the technical field of an ophthalmology specialty medical apparatus, in particular to a weak sight integrated therapeutic apparatus with triple visual function. The invention comprises a base seat, a support seat and a main body, wherein, the base seat is connected with the casing body of the main body through the support seat, a binocular tube, convex lens, a picture, a light guide sheet and a back light source are arranged in the casing body of the main body, the convex lens, the picture, the light guide sheet and the back light source are installed along each eyepiece sleeve shaft in sequence. Through the technical proposal of the invention, the weak sight integrated therapeutic apparatus not only has the function of Haidinger brush training, red light flickering training, fine grade sight contrast training, optical grating training, fine eyesight training and afterimage training, but also has the function of triple visual function training, including binocular vision, stereo vision and a confluence function, the invention not only can improve the eyesight of a weak sight patient through the fine eyesight training, but also can recovery and establish the stereo vision of the weak sight patient through the triple visual function training.

The invention provides a gettering method for prolonging the effective service life of a crystalline silicon substrate. The method comprises the following steps: carrying out a heavy phosphorous diffusion gettering on the crystalline silicon substrate without a surface damage layer by using a phosphorus source, and removing a phosphorous diffusion layer from the crystalline silicon substrate after phosphorous gettering and then carrying out the following processes. The heavy phosphorous diffusion gettering step comprises a phosphorous diffusion constant temperature process and a two-section cooling process for phosphorous gettering; the temperature of a constant temperature region in the phosphorous diffusion constant-temperature process is 800-950 DEG C, and the time of the phosphorous diffusion constant-temperature process is 30-50min; in the two-section cooling process for the phosphorous gettering, the temperature range of the first section is 980-800 DEG C and the treatment time of the temperature range of the first section is 5-30min, the temperature range of the second section is 800-700 DEG C and the treatment time of the temperature range of the second section is 30-90min, and a cooling rate is 2-10 DEG C / min. With the adoption of the method provided by the invention, the effective service life of a photo-production carrier can be prolonged; the photo-electric conversion efficiency of a solar battery is increased; the gettering method can be completely compatible with the conventional solar battery production process; and the gettering method can be directly applied to the mass production of the solar battery.

The invention discloses a passivation dielectric film for a solar cell. The passivation dielectric film is of a single-layer structure formed by a first dielectric film, or the passivation dielectric film is of a laminated structure formed by the first dielectric film and a second dielectric film, wherein the first dielectric film is in direct contact with a silicon substrate material; and the second dielectric film is deposited on the first dielectric film. The passivation dielectric film has good high-temperature sintering resistance, good optical antireflection performance, wider manufacturing method process window and strong feasibility and facilitates mass production.

A dye sensitization solar battery electrode, including a conducting substrate, a semiconductor nanometer crystal film formed on the substrate and the dye layer formed on the crystal film. The semiconductor nanometer crystal film contains umpty conductive particles. This invention also provides the dye sensitization solar battery adopting the above electrode. This invention adds umpty conductive particles such as metal particles, carbon nanometer materials and etc into the semiconductor nanometer crystal film of the dye sensitization solar battery electrode, and solves the problem of low conducting ratio of the present semiconductor nanometer crystal film of the dye sensitization solar battery.

The invention relates to a thin film crystalline silicon perovskite heterojunction solar battery and a preparation method thereof, and relates to a semiconductor device for converting luminous energy into electric energy. The thin film crystalline silicon perovskite heterojunction solar battery includes a transparent conductive substrate, a P-type thin film crystalline silicon hole transport layer, a perovskite light absorption layer, an electron transport layer formed by compact titanium dioxide, and a back electrode, wherein the perovskite light absorption layer and the P-type thin film crystalline silicon hole transport layer have matched energy levels. The configuration pattern: the P-type thin film crystalline silicon hole transport layer is arranged on the transparent conductive substrate; the perovskite light absorption layer is arranged on the P-type thin film crystalline silicon hole transport layer; the perovskite light absorption layer and the P-type thin film crystalline silicon hole transport layer form a thin film crystalline silicon perovskite heterojunction; the electron transport layer formed by the compact titanium dioxide is arranged on the perovskite light absorption layer; the back electrode is arranged on the electron transport layer formed by the compact titanium dioxide. According to the invention, the defects that the existing perovskite solar battery is low in stability and high in preparation cost, and a mass of silicon materials are used can be overcame.

An organic photoelectric conversion material for use in an organic thin-film photoelectric conversion device, containing a compound represented by formula 1; and an organic thin-film photoelectric conversion device having a photoelectric conversion layer which containing the organic photoelectric conversion material:wherein D represents an electron-donating aromatic substituent whose bonding site atom is a sp2 carbon atom; and a plurality of D may be the same or different from each other.

A prismatic solar battery relates to and consists of a prism, a solar battery panel, a prismatic protection cover, a Fresnel lens and a concave mirror. The two mutually independent and mutually cooperating components which form the invention are a lens protection cover which takes the Fresnel lens as the main element, and a photoelectric conversion element which takes the solar battery panel as the main element. The inner surface of each plane of the prismatic protection cover is provided with a Fresnel lens, the outer surface of which fits into the prismatic protection cover and fits completely into the inner surfaces of the planes. The concave mirror is positioned on the position in which the two Fresnel lens are connected. The surrounding of the battery prism is provided with a Fresnel lens which has the same number of prisms as the battery prism, and is arranged alternately with the concave mirror in structure. The invention adopts the Fresnel lens to converge the sunlight and at the same time adopts the concave mirror arranged in an alternate structure with the Fresnel lens to reflect and then the light irradiates the solar battery panel, thus improving the photoelectric conversion efficiency of the solar battery panel.

A solid-state image pickup device comprises: a plurality of photoelectric converting films stacked via an insulating layer, the photoelectric converting films being above a semiconductor substrate in which a signal read circuit is formed, in which each of the photoelectric converting films is sandwiched between a pixel electrode film and an opposing electrode film, wherein the pixel electrode film of an upper one of the photoelectric converting films is connected to the signal read circuit by a longitudinal line passing through a lower one of the photoelectric converting films, and, in the longitudinal line, a passing portion which passes through the lower photoelectric converting film is formed by filling an opening with a conductive material, the opening being formed from a same plane of the pixel electrode film stacked on the lower photoelectric converting film to an upper end face of the insulating layer stacked above the photoelectric converting film.