Sunfree Lighting Limited is a high-tech manufacturer specialized in R&D and production of solar led street light

The future of the solar cell: the advantage of the thin film has a lot of in the future

by:SUNFREE     2021-01-30
In & other; Five-year & throughout; Energy plan, the government put forward to optimize the energy structure, non-fossil energy consumption increased to 11. 4%, non-fossil energy generating capacity up to 30%. LED lights factory it is a solid cold light source, green pollution-free, less power consumption, high photosynthetic efficiency, long life, therefore, the LED street lamp will become the choice of road lighting energy saving transformation. LED street lamp which is a kind of based on semiconductor PN junction formation with a weak electricity can glowing efficient solid-state light source, in certain positive bias voltage and the electrical flow injection, injection of holes and injection P N the electronic after spread to have source area by the radiative recombination and emit photons, convert electrical energy directly into light energy. In formulating & other; Much starker choices-and graver consequences-in & throughout; As a new strategic resources in the process of planning, the solar energy is an important part of the energy in the future, will continue to be a key support project. LED street lamp which is a kind of based on semiconductor PN junction formation with a weak electricity can glowing efficient solid-state light source, in certain positive bias voltage and the electrical flow injection, injection of holes and injection P N the electronic after spread to have source area by the radiative recombination and emit photons, convert electrical energy directly into light energy. Countries launched a series of planning and incentive policies to promote the healthy development of photovoltaic industry. Today's industrial solar photovoltaic products mainly two types of solar cells, silicon crystalline silicon solar cells, such as monocrystalline silicon solar cells and polycrystalline silicon solar cell; And the thin film solar cells.
in view of the thin film solar cell components in photovoltaic building integrated ( bipv) The advantages, thin film solar cell components compared with crystalline silicon solar cell components, has a large capacity, low intensity, high temperature performance is good, etc. Morning, thin film components in light/under the condition of low temperature power generation performance slightly higher than the crystalline silicon; At noon, the thin film components of high temperature effect is obvious, its power performance is better than crystalline silicon. Crystalline silicon components of t; Night, thin film components than crystalline silicon components in the light of the electricity generating performance/under the condition of high temperature power generation performance is good. Under the condition of the same rated power, the output of the thin film components day is higher than silicon components. At the same time, the membrane component has excellent low light and high temperature performance. With a silicon thin film surface demonstration power plant as an example, in May 2014 to September 2015 in high temperature season, according to the thin film silicon and continuous monitoring of the crystal silicon's electricity and found that thin-film module of MOR is 25%. The power of this period is greater than the crystalline silicon.
in addition to the above advantages, thin film solar cell components also has a beautiful appearance, good integrity, flexible, lightweight, etc.
in recent years, the pv market shift towards thin-film solar photovoltaic products. Thin film solar cell has the advantage of: thin film solar battery low energy consumption, wide selection of materials preparation, preparation of diversity, per watt of generating capacity is higher than crystalline silicon solar cells, high efficiency products, products are light weight, flexible products, using range is wide, more suitable for photovoltaic building integrated. Among them, the efficiency of laboratory in more than 20% of copper indium gallium selenide thin film solar cell is a photovoltaic conversion efficiency of thin-film solar cells. Due to the copper indium gallium selenide solar cell light failure effect, stable performance, high efficiency, environmental friendly, Europe and the United States a new generation of high efficiency thin film solar cells research hot spot.
the vacuum deposition technology of the preparation of copper indium gallium selenide thin film solar cells not only recorded the 20. The 4% conversion efficiency, and mature and large-scale industrialization, product has cost competitiveness. Used in the manufacture of copper indium gallium selenide thin film solar cells of vacuum technology has low cost, easy to the potential advantages of large area, and it has been more and more attention. Main copper indium gallium selenide thin film solar cell company in Europe, America and Japan the efficiency of the components of the product is more than 13%.

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