摘要:
Methods of fabricating solar cells using a metal-containing thermal and diffusion barrier layer in foil-based metallization approaches, and the resulting solar cells, are described. For example, a method of fabricating a solar cell includes forming a plurality of semiconductor regions in or above a substrate. The method also includes forming a metal-containing thermal and diffusion barrier layer above the plurality of semiconductor regions. The method also includes forming a metal seed layer on the metal-containing thermal and diffusion barrier layer. The method also includes forming a metal conductor layer on the metal seed layer. The method also includes laser welding the metal conductor layer to the metal seed layer. The metal-containing thermal and diffusion barrier layer protects the plurality of semiconductor regions during the laser welding.
摘要:
Methods of fabricating solar cells using simplified deposition processes, and the resulting solar cells, are described. In an example, a method of fabricating a solar cell involves loading a template substrate into a deposition chamber and, without removing the template substrate from the deposition chamber, performing a deposition method. The deposition method involves forming a first silicon layer on the template substrate, the first silicon layer of a first conductivity type. The deposition method also involves forming a second silicon layer on the first silicon layer, the second silicon layer of the first conductivity type. The deposition method also involves forming a third silicon layer above the second silicon layer, the third silicon layer of a second conductivity type. The deposition method also involves forming a solid state doping layer on the third silicon layer, the solid state doping layer of the first conductivity type.
摘要:
The invention relates to an electro-conductive paste comprising Ag particles with a multimodal diameter distribution in the preparation of electrodes in solar cells, particularly in the preparation of electrodes in MWT solar cells, particularly in the preparation of the metal wrap through, or plug, electrode in such solar cells. In particular, the invention relates to a solar cell precursor, a process for preparing a solar cell, a solar cell and a module comprising solar cells. The invention relates to a solar cell precursor at least comprising as precursor parts: i) a wafer with at least one hole with a Si surface; ii) an electro-conductive paste at least comprising as paste constituents: a) metallic particles; b) an inorganic reaction system; c) an organic vehicle; and d) an additive; comprised by the hole, wherein the metallic particles have a multimodal distribution of particle diameter.
摘要:
Die vorliegende Erfindung betrifft ein neues Verfahren zur Herstellung von druckbaren, hochviskosen Oxidmedien, sowie deren Verwendung in der Solarzellenherstellung.
摘要:
An all back contact solar cell has a hybrid emitter design. The solar cell has a thin dielectric layer (102) formed on a backside surface of a single crystalline silicon substrate (101). One emitter (103) of the solar cell is made of doped polycrystalline silicon that is formed on the thin dielectric layer (102). The other emitter (108) of the solar cell is formed in the single crystalline silicon substrate (101) and is made of doped single crystalline silicon. The solar cell includes contact holes that allow metal contacts (107) to connect to corresponding emitters (108, 103).
摘要:
The method of manufacturing a solar cell, comprising the steps of providing a solar cell device comprising a semiconductor body (10) and having a first side (11) and an opposed second side (12), which first side is intended for capturing incident light and which second side is intended for assembly to a carrier, which solar cell device comprises a first contact region (13) in the semiconductor body (10) at one of the first (11) and the second side (12); applying an optically transparent structure (22) of electrically insulating material to at least one of the sides (11, 12) of the solar cell device, which structure is patterned to form an aperture to the first contact region (13); providing a contact structure (41, 42, 43) of electrically conducting material in said aperture by means of electrochemical deposition.
摘要:
A photovoltaic cell comprises a base substrate comprising silicon and including a rear region. A first electrode is disposed on, and is in electrical communication with, the rear region, and comprises a first metal present in the first electrode in a majority amount. A second electrode is spaced from the rear region such that the rear region is free of physical contact with the second electrode. The second electrode is in electrical contact with the first electrode. The second electrode comprises a polymer, a second metal present in the second electrode in a majority amount, and a third metal different from the first and second metals. The third metal has a melting temperature of no greater than about 300 'C. The rear region is in electrical communication with the second electrode via the first electrode. A method of forming the PV cell is also provided.
摘要:
A photovoltaic cell comprises a base substrate comprising silicon and including a rear region. A first electrode is disposed on, and is in electrical communication with, the rear region, and comprises a first metal present in the first electrode in a majority amount. A second electrode is spaced from the rear region such that the rear region is free of physical contact with the second electrode. The second electrode is in electrical contact with the first electrode. The second electrode comprises a polymer, a second metal present in the second electrode in a majority amount, and a third metal different from the first and second metals. The third metal has a melting temperature of no greater than about 300 'C. The rear region is in electrical communication with the second electrode via the first electrode. A method of forming the PV cell is also provided.
摘要:
A photo-voltaic cell with semiconductor substrate having a first conductivity type has a first pattern of base and emitter surface regions on the back surface, the base and emitter surface regions being coupled to first and second output terminals respectively. A second pattern of first and second further surface regions on the front surface, electrically floating with respect to the first and second output terminals. The first and second further surface regions have the first and second conductivity type respectively. The first and second further surface regions at least partly overlap the emitter and base regions respectively, when seen in a projection along a direction perpendicular to the first surface.
摘要:
Provided is a method of fabricating a selective EWT solar cell, including: a) forming via holes penetrating through opposing first and second surfaces of a p-type semiconductor substrate using laser; b) forming an anti-reflective film on the first surface of the semiconductor substrate, and forming a passivation film on the second surface of the semiconductor substrate; c) partially etching the passivation film so as to expose a part of the second surface on which an opening part of each of the via holes is formed; and d) heat-treating the semiconductor substrate under the presence of n-type impurity to dope the n-type impurity on the semiconductor substrate.