摘要:
Embodiments of the invention generally provide a solar cell formation process that includes the formation of metal contacts over heavily doped regions that are formed in a desired pattern on a surface of a substrate. Embodiments of the invention also provide an inspection system and supporting hardware that is used to reliably position a similarly shaped, or patterned, metal contact structure on the patterned heavily doped regions to allow an Ohmic contact to be made. The metal contact structure, such as fingers and busbars, are formed on the heavily doped regions so that a high quality electrical connection can be formed between these two regions.
摘要:
Apparatus and methods are provided to polish an edge of a substrate. The invention includes a polishing head adapted to retain a backing pad having a selected contour, wherein the polishing head is adapted to press the backing pad against an edge of a substrate. Numerous other aspects are provided.
摘要:
An apparatus and method for processing the solar cell substrates is provided. In one embodiment, a laser firing chamber for processing solar cell substrates placed in a carrier, comprising a laser module located at a side of the carrier, the laser module being adapted to generate and direct multiple laser beams over an entire surface of a plurality of solar cell substrates, and a transport adapted to convey the carrier through an outputting region of the laser beams.
摘要:
An apparatus and method are provided to polish an edge of a substrate. The invention includes a polishing head including a backing pad, wherein a width of the backing pad that contacts the substrate edge is larger than a width of a notch in the substrate edge. Numerous other aspects are provided.
摘要:
Apparatus and methods are provided to polish an edge of a substrate. The invention includes a polishing head adapted to retain a backing pad having a selected contour, wherein the polishing head is adapted to press the backing pad against an edge of a substrate. Numerous other aspects are provided.
摘要:
Apparatus and methods are provided relating to polishing a substrate using a polishing device, such as a polishing tape. The polishing device may be formed to include a base, a resin layer adhering to the base, and a plurality of embossed abrasive particles and/or abrasive beads affixed to the base by the resin layer. The plurality of abrasive particles and/or beads may be embossed in the resin layer. The plurality of abrasive beads may include a plurality of abrasive particles suspended in binder material. The plurality of abrasive particles and/or beads and the resin layer combine to form an abrasive side of the polishing device adapted to contact the substrate. Polishing of the substrate preferably includes polishing an edge of the substrate while the substrate is rotated by a holding device such that no apparatus other than the polishing tape contacts the edge while the substrate is rotating.
摘要:
The present invention relates to solar cells and discloses a difluoro benzotriazolyl solar cell material and preparation method and use thereof. The solar cell material is represented by formula (I), wherein both R1 and R2, are C1 to C20 alkyl, and n is an integer from 10 to 50. In the difluoro benzotriazolyl solar cell material, since the 1,2,3-benzotriazole solar cell material contains two fluorine atoms, the HOMO energy level is reduced by 0.11 eV, while the fluorine-substituted 1,2,3-benzotriazole has two imido groups with electron-withdrawing ability; the fluorine-substituted 1,2,3-benzotriazole is a heterocyclic compound with strong electron-withdrawing ability, and an alkyl chain can be easily introduced to the N-position of the N—H bond of the benzotriazole. The functional group of the alkyl chain can improve the solar energy conversion efficiency, thus solving the low efficiency problem of solar cells made of the solar cell material.
摘要:
Provided are a co-polymer of formula (I) of 2,7-fluorene and bithiazole, a method for preparing same, and a solar battery containing same. The structural formula of the copolymer of 2,7-fluorene and bithiazole is as shown by formula (I), wherein both R1 and R2 are C1-C20 alkyl groups, and n is an integer of 10-100. The co-polymer of the present invention has a novel structure, a good dissolving property, an excellent film-forming property, and a high power conversion efficiency, and can be used as the material for a solar battery. Also provided are the method for preparing the co-polymer and the solar battery containing same. The preparation method uses raw materials widely available and has a simple synthesis route.
摘要:
An organic electroluminescent compound containing Iridium, preparation method thereof and an organic electroluminescent device are disclosed. The compound is represented by the structure (2), wherein, R is C1˜C4 alkyl. The structure of the compound contains bipyridine ligand, also carries alkoxy group and fluorine atom, which improves its carrier injection and transfer ability, and increases its internal quantum efficiency and electroluminescent efficiency. Furthermore, the compound uses strong field ligand 2-pyridine carboxylic acid as assistant ligand, which causes an effective blue shift of its emission spectrum and increases light-emitting efficiency of blue light phosphorescence greatly.
摘要:
The present invention relates to solar cells and discloses a difluoro benzotriazolyl solar cell material and preparation method and use thereof. The solar cell material is represented by formula (I), wherein both R1 and R2, are C1 to C20 alkyl, and n is an integer from 10 to 50. In the difluoro benzotriazolyl solar cell material, since the 1,2,3-benzotriazole solar cell material contains two fluorine atoms, the HOMO energy level is reduced by 0.11 eV, while the fluorine-substituted 1,2,3-benzotriazole has two imido groups with electron-withdrawing ability; the fluorine-substituted 1,2,3-benzotriazole is a heterocyclic compound with strong electron-withdrawing ability, and an alkyl chain can be easily introduced to the N-position of the N—H bond of the benzotriazole. The functional group of the alkyl chain can improve the solar energy conversion efficiency, thus solving the low efficiency problem of solar cells made of the solar cell material.