The first solar cell was successfully prepared by Charles Fritts in 1883. Charles used a germanium semiconductor coated with an extremely thin layer of gold to form a semiconductor metal junction, and the device had an efficiency of only 1%.
In 1946, Russell Ohl applied for a patent for the manufacture of modern solar cells.
In the 1950s, with the gradual understanding of the physical properties of semiconductors and advances in processing technology, in 1954, as Bell Labs in the United States conducted experiments on semiconductors -conductors, it was discovered that after a certain amount of impurities were mixed with the silicon. After becoming more sensitive to light, the first solar cell was born at Bell Labs in 1954. The era of solar cell technology has finally arrived.
The difference between the hit battery and the hjt battery
The classification of solar cells can be divided into crystalline thin film type and amorphous thin film type (hereinafter referred to as a-). depending on the state of crystallization. Major categories, and the first is divided into monocrystalline form and polycrystalline form. According to the material, it can be divided into silicon thin film type, compound semiconductor thin film type and organic film type. The compound semiconductor thin film type is further divided into amorphous type (a-Si:H, a-Si:H). :F, a-SixGel-x:H, etc.), Group IIIV (GaAs, InP, etc.), Group IIVI (Cds series) and zinc phosphide (Zn 3 p 2 ), etc. According to the different materials used, solar cells can also be divided into: silicon solar cells, multi-compound thin-film solar cells, polymer multi-layer modified electrode solar cells, nanocrystalline solar cells, organic solar cells, plastic solar cells , among othersres. which silicon solar cells are the most mature and dominant applications
Different application ranges and efficiencies. 1.hit battery has a wide range of applications. This type of battery can be widely used in different economic fields such as solar panels, urban public transportation, communication equipment and electrical installation projects. , while ABC batteries can only be used in a few fields such as urban public transportation and communication equipment, and their application scope is very narrow. 2. Battery efficiency is high. This type of battery can be used on both the front and rear, and the utilization rate can reach more than 90%, while the ABC battery can only be used on the front and back. efficiency is about 98%. First of all, by definition, a lithium battery is a battery that useslises lithium metal or a lithium alloy as the negative electrode material and a non-aqueous electrolyte solution. Struck battery (commonly known as heterojunction battery), the Chinese name is crystalline silicon heterojunction solar cell. This technology deposits a thin film of amorphous silicon on crystalline silicon, integrating the core competitiveness of crystalline silicon cells and thin film cells. This is one of the hottest trends in high conversion efficiency silicon-based solar cells.