Yingli component shipments 1 in 2018. 73千瓦

Solar photovoltaic net news: recently, yingli released in 2018, the latest results, the company revenue is 6, 2018. $48. 1 billion, a net loss of 2. $46 billion, the gross profit margin dropped to minus 6. 2%. Photovoltaic components shipments of 1731 in 2018. 1 mw.

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'photovoltaic (pv) of the world' this is a comprehensive system to introduce photovoltaic summary of past, present and future of the development of corpus, wide-ranging, and can meet the needs of different readers. This paper not only includes editor Wolfgang & middot; Dr Parr, herself, in its new energy career of more than 50 years, the deep understanding of the development of photovoltaic (pv) and system summary, also include the global photovoltaic industry professionals engaged in new energy or a review of the photovoltaic difficult development,

this paper mainly summarizes the SiNx thin film for crystalline silicon solar cell surface passivation and SiO2 thin films, SiO2 / SiNx laminated film, Al2O3 film and structure formation process and passivation of TOPCon passivation contact principle and application situation. Including SiNx and Al2O3 in thin film deposition at the same time there will be a lot of hydrogen generation, can form good hydrogen passivation. SINx thin film with a large number of fixed positive charge of n-type silicon surface can form good field passivation, and contain a large number of fixed negative Al2O3 passivation film is mainly used for P type battery back and n type battery before boron emitter passivation. SiO2 thin films of n-type and p-type silicon wafer surface has good passivation effect, but the formation process requires high temperatures. TOPCon whole surface passivation passivation contact structure which can realize the battery surface contact, improve the conversion efficiency of the battery. Is the next step which can realize industrialization of efficient battery hot technology.