Abstract: A method of forming a front electrode of a solar cell includes a step of forming a sub-grid line and a main-grid line on the solar cell. The method further includes steps of: forming a lower layer of the sub-grid line on the solar cell using a lower paste by a first screen; drying the solar cell that is formed with the lower layer of the sub-grid line; forming an upper layer of the sub-grid line and the main-grid line simultaneously on the solar cell using an upper paste by a second screen; and sintering the solar cell that is formed with the sub-grid line and the main-grid line. A method of manufacturing a solar cell using the methods and a solar cell manufactured by the method are also provided.

Abstract: An acid corrosion solution for preparing polysilicon suede is obtained by mixing with an oxidant and a hydrogen fluoride. The oxidant is a nitrate or nitrite. The method applied of the solution includes putting the polysilicon cut pieces into the acid corrosion solution to carry out the corrosion reaction. The reaction time is about 30 seconds to 20 minutes and the temperature of acid corrosion solution is ?10° C. to 25° C.

Abstract: A fission structure type junction box for a solar cell module (6) and the solar cell module (6) including the fission structure type junction box. The fission structure type junction box is provided with a main junction box (1) and a slave junction box (2). A conductor is set in the slave junction box (2) and connected with a bus bar of the solar cell module (6). A bypass diode (12) and a conducting piece (13) are positioned in the main junction box (1). The conducting piece (13) in the main junction box (1) is electrically connected with the conductor in the slave junction box (2). Therefore a fault of a circuit in the junction box does not influence the cell module and the fault circuit is easy to maintain.

Abstract: A PV module frame, includes a module recess, a sidewall vertical to the module recess and a bottom portion vertical to the sidewall. The bottom portion extends from the bottom of the sidewall along the opposite direction of the recess of the module recess. A PV module having the PV module frame and a PV module installation system for installing the PV module onto a support, wherein the bottom portions of the adjacent solar cell assemblies are socket jointed and fixed to at least one installation beam which is fixed to the support. The beneficial effect of the present invention is that: fast installation of a PV module could be realized only by using the improved frame and one installation beam, Which reduces the quantity of the members in an installation system module and makes the installation more efficient, easier and more economical.

Abstract: A manufacture method for a gallium-doped monocrystalline silicon solar cell is provided. The method includes classifying the sheets of gallium-doped monocrystalline silicon according to resistivity; texturing and washing the sheets of gallium-doped monocrystalline silicon; diffusing the classified, textured and washed sheets of gallium-doped monocrystalline silicon; etching and depositing the sheets of gallium-doped monocrystalline silicon; and metalizing the sheets of gallium-doped monocrystalline silicon. Advantageously, Light Induced Degradation (LID) is efficiently, economically and conveniently suppressed, the light induced efficiency degradation of monocrystalline silicon solar cell can be controlled within 1%, and meanwhile, the effect of the uneven resistivity distribution of gallium-doped monocrystalline on the cell process is reduced.

Abstract: A smart photovoltaic assembly and a photovoltaic system are provided. The smart photovoltaic assembly comprises a photovoltaic assembly main body, an installation plate disposed on a back surface of the photovoltaic assembly main body, and a current leading terminal connector provided on the installation plate for leading an electric current line from the photovoltaic assembly main body, wherein the current leading terminal connector has a first connector interface adapted for connecting with a second connector interface of a complementary electronic device. The current leading terminal connector is in electrical connection with the complementary electronic device by mutual connection of the first connector interface and the second connector interface. The photovoltaic system comprises the above mentioned smart photovoltaic assembly, wherein the electronic device may be a diode module, an electric voltage converting device, a monitor or other types of electronic devices according to the need of a user.

Abstract: The present invention discloses a wind deflector structure for a photovoltaic system and a photovoltaic system. The photovoltaic system comprises a photovoltaic module and a wind deflector structure. The photovoltaic module comprises a photovoltaic cell laminate and a support mounted onto the photovoltaic cell laminate. When the photovoltaic module is mounted onto an installation surface, a front side of the photovoltaic cell laminate is close to the installation surface and a back side thereof is far from the installation surface. The wind deflector structure is mounted close to the back side of the photovoltaic cell laminate and substantially shields a space between the back side of photovoltaic module and the installation surface. The wind deflector structure is fixed onto the supports of at least two photovoltaic modules side by side in a left-to-right direction so as to restrict a relative position of the at least two adjacent photovoltaic modules.

Abstract: The present invention discloses a photovoltaic module and a support thereof. The photovoltaic module comprises a photovoltaic cell laminate and a support adapted to be mounted onto an installation surface. The support is connected to a back surface of the photovoltaic cell laminate and comprises a first connecting portion close to a front side of the photovoltaic cell laminate and a second connecting portion disposed close to a back side of the photovoltaic cell laminate. When a plurality of photovoltaic modules is mounted onto the installation surface, the first connecting portion of one photovoltaic module is engaged with the second connecting portion of another adjacent photovoltaic module, so that a relative position of the photovoltaic module and another adjacent photovoltaic module is maintained and the plurality of photovoltaic modules is mounted onto the installation surface.

Abstract: This invention discloses a photovoltaic module comprising a photovoltaic module panel and a plurality of photovoltaic module frame segments adapted for holding the photovoltaic module therein; each of the photovoltaic module frame segments comprises a base wall, a photovoltaic module holding part and a first side wall extending between the base wall and the photovoltaic module holding part; the photovoltaic module holding part has a recess facing toward a first direction, the photovoltaic module holding part defines an upper face and a bottom face opposite to each other, wherein said first side wall is oriented at an obtuse angle relative to the bottom face of the photovoltaic module holding part.

Abstract: This invention discloses a method for etching a see-through thin film solar module, comprising: printing ink paste which resists the etching of etching solutions in the protected area of the thin film solar module which is placed under a screen; drying and solidifying the ink paste; coating etching solutions on the thin film solar module; and removing the ink paste. The method of this invention can accurately position the see-through area, achieve various selections of see-through patterns, facilitate the realization of the see-through function in large-area thin film solar modules, and alleviate the problem that a short circuit easily occurs in a see-through thin film solar module.

Abstract: A roller group for transporting a thin substrate (16) comprises an upper roller (12) fixed to an upper roller shaft (10) and a lower roller (18) fixed to a lower roller shaft (10), the upper and lower rollers rotating reversely at the same linear velocity in a clockwise direction and a counter-clockwise direction respectively to allow the thin substrate to move towards a certain direction. The upper roller includes a fixed roller and a plurality of elastic pieces secured on the fixed roller around its outer circumference surface. A method for performing a chemical treatment by using the above roller group for transporting a thin substrate comprises: using one or more sets of the roller groups to allow the thin substrate to continuously move towards one direction, so as to perform a continuous wet-chemical treatment to the thin substrate using a solution.

Abstract: This invention discloses a light-transmission thin film solar module and a process thereof. A light-transmission area is formed by using a mask-assisted sandblasting etching process comprising: positioning a mask to cover the back electrode of the thin film solar module; and performing a sandblasting etching process to the mask to form the light-transmission area of the thin film solar module. The light-transmission thin film solar module manufactured by using the process of this invention can include a light-transmission area of any pattern at a lower cost and in a large scale production.

Abstract: A method for manufacturing electrodes of solar cell and electrochemical depositing apparatus are disclosed. The method for manufacturing electrodes of solar cell is a method using the process of electrochemical depositing metal or metal alloy to form electrodes of solar cell. The method of the present invention can improve photoelectric conversion efficiency and reduce the production cost. The reaction time of the method is short and industrial waste liquid is treated easily.

Abstract: A method for electrochemically depositing a metal electrode of a solar cell, comprising the steps of: making the surface of the solar cell having a cathode contact with an electrolyte solution, connecting an anode of the solar cell and a solid metal, illuminating the main light-receiving surface of the solar cell, wherein metal ions in the electrolyte solution accept electrons formed on the cathode surface of the solar cell so that a metal is formed and deposited on the cathode surface of the solar cell, meanwhile, the solid metal provides electrons to the anode of the solar cell so that the metal ions are formed and dissolved in the electrolyte solution.

Abstract: This invention discloses a method for etching a see-through thin film solar module, comprising: printing ink paste which resists the etching of etching solutions in the protected area of the thin film solar module which is placed under a screen; drying and solidifying the ink paste; coating etching solutions on the thin film solar module; and removing the ink paste. The method of this invention can accurately position the see-through area, achieve various selections of see-through patterns, facilitate the realization of the see-through function in large-area thin film solar modules, and alleviate the problem that a short circuit easily occurs in a see-through thin film solar module.

Abstract: A method for chemically processing a surface of a semiconductor substrate is provided, comprising the steps of: placing a semiconductor substrate above a chemical solution by a shaft and making the lower surface of the semiconductor substrate be at a certain distance from the liquid surface of the chemical solution; and jetting the chemical solution onto the lower surface of the semiconductor substrate by a jet apparatus to perform the chemical processing on the lower surface. A device for the same is also provided, including a chemical tank containing a chemical solution, a shaft for supporting the semiconductor substrate above the chemical solution, and a jet apparatus for jetting the chemical solution onto the lower surface of the semiconductor substrate. The method may perform a chemical treatment on one side of a semiconductor substrate without any protection for the other side.

Abstract: The present invention discloses a PV module frame, comprising: an module recess, a sidewall vertical to the module recess and a bottom portion vertical to the sidewall. Said bottom portion extends from the bottom of said sidewall along the opposite direction of the recess of said module recess. The present invention also discloses a PV module having said PV module frame and further discloses a PV module installation system for installing said PV module onto a support, wherein the bottom portions of the adjacent solar cell assemblies are socket jointed and fixed to at least one installation beam which is fixed to said support. The beneficial effect of the present invention is that: fast installation of a PV module could be realized only by using the improved frame and one installation beam, which reduces the quantity of the members in an installation system module and makes the installation more efficient, easier and more economical.

Abstract: A photovoltaic system, a terminal box and a voltage converting device thereof is provided. The terminal box and the voltage converting device have a connector plug or a connector socket, wherein said connector plug and connector socket are electrically connected by plugging. The photovoltaic system comprises a solar module, the terminal box and the voltage converting device, the terminal box and the voltage converting device being electrically connected by plugging the connector plug and connector socket, and the converting device being fixed to the solar module through a support member. With this photovoltaic system, the installation manner, which is free from conducting wires, is convenient, reliable and cost-effective.

Abstract: An acid corrosion solution for preparing polysilicon suede is obtained by mixing with an oxidant and a hydrogen fluoride. The oxidant is a nitrate or nitrite. The method applied of the solution includes putting the polysilicon cut pieces into the acid corrosion solution to carry out the corrosion reaction. The reaction time is about 30 seconds to 20 minutes and the temperature of acid corrosion solution is ?10° C. to 25° C.

Abstract: A manufacture method for a gallium-doped monocrystalline silicon solar cell is provided. The method includes classifying the sheets of gallium-doped monocrystalline silicon according to resistivity; texturing and washing the sheets of gallium-doped monocrystalline silicon; diffusing the classified, textured and washed sheets of gallium-doped monocrystalline silicon; etching and depositing the sheets of gallium-doped monocrystalline silicon; and metalizing the sheets of gallium-doped monocrystalline silicon. Advantageously, Light Induced Degradation (LID) is efficiently, economically and conveniently suppressed, the light induced efficiency degradation of monocrystalline silicon solar cell can be controlled within 1%, and meanwhile, the effect of the uneven resistivity distribution of gallium-doped monocrystalline on the cell process is reduced.