A photovoltaic lamp comprises a photovoltaic cover and a lamp body. The photovoltaic cover covers a side away from a light-emitting surface of the lamp body. A receiving groove is formed in a side, away from the lamp body, of the photovoltaic cover. A glass cover is fixedly attached to an opening of the receiving groove with an UV adhesive. A silicon cell is arranged between the glass cover and the bottom of the receiving groove. The glass cover together with the UV adhesive is used as a packaging structure of the silicon cell, thus improving the photoelectric conversion efficiency of the silicon cell; and the glass cover is small in deformation, unlikely to be damaged and easy to clean, thus reducing the production input, shortening the production time, and improving the production efficiency and the stability of the high-quality output of products.

Fluid delivery systems and related structures and processes are provided, such as for use with water, treated water, and/or a cleaning solution, for any of cleaning, cooling or any combination thereof, for one or more solar panels in a power generation environment. Enhanced coatings are provided for the incident surface of solar panels, such as to avoid build up of dirt, scale, or other contaminants, and/or to improve cleaning performance. Reclamation, filtration, and reuse structures are preferably provided for the delivered fluid, and seal structures may preferably be implemented between adjoining panels, to minimize loss of the delivered water or cleaning solution.

Solar cells are packaged by placing the solar cells between sheets of encapsulants. The encapsulants are exposed to ultraviolet (UV) light to cure the encapsulants and bond the encapsulants together to encapsulate the solar cells. The UV curing steps may be performed to bond one of the encapsulants to a transparent top cover and the solar cells, and to bond the other encapsulant to the solar cells and a backsheet. A protective package that includes the transparent top cover, encapsulated solar cells, and the backsheet is then optionally mounted on a frame.

A solar cell module includes a plurality of solar cells, each solar cell including a semiconductor substrate, an emitter region, a back surface field region a first electrode connected to the emitter region, a second electrode connected to the back surface field region, and a conductive line connected to one electrode of the first and second electrodes using a conductive adhesive and insulated from the other electrode of the first and second electrodes through an insulating layer, the conductive line being used to connect a plurality of solar cells in series. A thickness of the conductive adhesive between the one electrode and the conductive line is greater than a thickness of the insulating layer between the other electrode and the conductive line.

Material and antireflection structure designs and methods of manufacturing are provided that produce efficient photovoltaic power conversion from single- and multi-junction devices. Materials of different energy gap are combined in the depletion region of at least one of the semiconductor junctions. Higher energy gap layers are positioned to reduce the diode dark current and enhance the operating voltage by suppressing both carrier injections across the junction and recombination rates within the junction. Step-graded antireflection structures are placed above the active region of the device in order to increase the photocurrent.

The invention relates to curable polyorganosiloxane compositions for the use as an encapsulant for a solar cell module, in particular, for the encapsulation of photovoltaic modules, cured polyorganosiloxane composition made therefrom and photovoltaic modules comprising the same as encapsulant.

Glasses comprising Bi203, ZnO B203 and optionally a colorant including an oxide of a metal such as iron, cobalt, manganese, nickel, copper and chromium are suitable to form hermetic seals in solar cell modules, architectural glass windows and MEMS devices. Glass frit and paste compositions suitable for flow and bonding to various substratesglass, metal, silicon, in the temperature range of 400-500 degrees Centigrade. The broad compositional range in mole % is 25-70% Bi203, up to 65% ZnO, and 1-70% B203. Such glasses do not have batched in alumina or silica. Such glasses lack alumina and silica.

An encapsulating material for solar cell that is capable of suppressing the corrosion of metal and the occurrence of yellowing at a high temperature and has excellent long-term reliability in a constant temperature and humidity is provided. The encapsulating material for solar cell of the invention contains an ethylene/-olefin copolymer, a hindered amine-based light stabilizer, a hindered phenol-based stabilizer, and a phosphorous-based stabilizer as essential components.

A photovoltaic cell module includes: a transparent upper cover plate, a first polyolefin encapsulation layer, a cell group layer, a second polyolefin encapsulation layer, and a backplane that are sequentially disposed in a laminated manner, where outer edges of the transparent upper cover plate and the backplane exceed outer edges of the first polyolefin encapsulation layer, the cell group layer, and the second polyolefin encapsulation layer, an end part sealing block is further disposed between the transparent upper cover plate and the backplane, and the end part sealing block is located at peripheries of the first polyolefin encapsulation layer, the cell group layer, and the second polyolefin encapsulation layer.

There are provided: a solar cell-sealing film containing an ethylene--olefin copolymer polymerized using a metallocene catalyst, an organic peroxide and a silane coupling agent, wherein a decrease in the adhesive force of the sealing film during the storage time before its usage is suppressed; and a solar cell using the same. There are provided: a solar cell-sealing film formed of a composition containing an ethylene--olefin copolymer polymerized using a metallocene catalyst, an organic peroxide and a silane coupling agent, wherein the composition further contains 0.01 to 0.1 parts by mass of magnesium hydroxide or magnesium oxide with respect to 100 parts by mass of the ethylene--olefin copolymer, and the magnesium hydroxide or the magnesium oxide has a BET specific surface area of 30 m.sup.2/g or larger; and a solar cell using the same.