Process route is gradually becoming mature thin film solar cells are promising

China Suppliers


Polysilicon investment boom has not yet subsided, and most recently another generous corporate capital investment and thin film solar cell market frequency. This year in February, following the Han can Holdings announced that it would invest 28 billion yuan in Heyuan, Guangdong started developing thin film solar cell manufacturing base, the March, there are many enterprises in Sichuan, nearly 23 billion capital into thin film solar cell production.

Frequent movements of capital cause concern to the industry and discussion is also expected of thin film solar cells, its rapid increase in market share showed up for a solar cell market momentum. What made the capital a more popular film solar cells? Recently, the editors interviewed experts and businesses.

"Strategically speaking, corporate capital to the direction of thin film solar cells should be no problem. At present, the prospect of polysilicon technology, production capacity and market demand and market saturation there is a certain deviation." To Beijing Clean Energy Technology Co., Ltd Kam, general manager of Zou Zhuanquan In an interview, said, "the short term, the domestic market is less than the current requirement of polysilicon has been approved by the polysilicon production capacity. in the last two to three years, companies launched polysilicon project, the market will bear great pressure The investment in thin-film solar is relatively much smaller market pressures, the market outlook is more optimistic. While market long term, with the start of the domestic market, polysilicon is also very optimistic about the prospects for development. but silicon thin film solar cells and solar energy battery consists of the possibility of a very large world. " pole solar lights

A thin film solar cell maker, said compared with the polycrystalline silicon, thin film solar cell with low cost, mature technology, the advantage of less pollution, more suitable for large-scale construction, urban civil use. Their equipment with high bargaining power than other means, to enable the production of silicon thin films necessary supplies, such as gas, glass, costs more competitive, you can quickly dropped to one U.S. dollar per watt below cost competitive advantages. barbie collectors

Investment adviser in the energy industry, said chief researcher Jiang Qian, thin film solar cells have already emerged despite, but because of the low photoelectric conversion efficiency, attenuation ratio were higher, a few years ago did not attract enough attention from the industry, market share is low. But as the technology progresses, the photoelectric conversion efficiency is rapidly increasing, and has improved than before about 30% -40%. Although compared with crystalline silicon cells is still a big gap, but because fewer materials, simple technology, low energy consumption, has obvious cost advantages, more and more accepted by the industry, the last 3 years been rapid thin film solar cell industry development.

Qian Jiang introduced in 2007, the international film solar cell market share from 2006 8.2% to 12% in 2007, 2008, reached 15% -20%. With further improve cell conversion efficiency and cost advantages of large-scale production, its market share has further room to improve. Thin film solar cell has become the hot solar modules, polysilicon fever, new investment in the field of domestic solar hot spot. Jiang Qian said: "Compared with the crystalline silicon cells, thin film cells is much greater potential for cost reduction, mainly due to thin film solar cells and technological progress. Thin film solar cell production capacity is expected to be the next to reach the solar industry 20%, the development of larger space. thin film solar cell is now facing the development of technological breakthroughs, there are many physical methods, such as ion beam method of nanocrystalline silicon thin film technology, if the domestic enterprises has improved in this respect will be very promising . "

"From the cost point of view of the future than the crystalline silicon thin film solar cell batteries have significant advantages, compared to conventional thermal power and other alternative energy has obvious advantages." PV head of Austrian in an interview on the development of thin film solar cells are given sure. The official said, with the PV industry in the global energy accounted for progressively higher proportion of thin film solar photovoltaic power station in a large, BIPV and other application requirements will be driven by rapid development. However, different thin-film solar cells each have their own shortcomings, or the conversion efficiency is low, or the existence of environmental security, there is some scarcity of raw materials resources issues that need to gradually scale industry, after all the solutions.

Thin film solar cells at the early stage of development, after all, a number of issues facing the constraints, such as technology maturity, lack of professional and technical personnel, lack of sophisticated equipment manufacturers, there are some technology issues such as patent rights. However, every reason to believe that thin film solar cell is about to enter high growth. The new head of Austrian photovoltaic explained to the new Austrian R & D of silicon thin film solar cells, for example, the battery technology developed with high use of laminated process efficiency and decay problems will no longer be outstanding. Second, the R & D strength of semiconductor equipment suppliers have cut into the silicon thin film solar cell equipment supplier in the field, thin film solar equipment suppliers rapidly, the rapid development of the industry played an important role.

Person in charge of the new Austrian PV, from a technical route development, the present, the silicon thin film solar cells have been developed to the fourth generation - amorphous / microcrystalline silicon double junction tandem solar cell. This amorphous silicon and microcrystalline silicon tandem will be the future of the basic structure of silicon thin film solar cells are the main trends. Major companies from the recent future capacity expansion plan, this thin film solar cells have also been the development prospects of the entire PV industry recognition.

Industry experts believe that in fact, thin film solar technology industry in the process closer to the semiconductor industry, a large number of processes involved in vacuum coating technology, coating level, the deposition rate directly affect the product yield and production efficiency, indirect impact on profitability . Equipment suppliers have strong support, not only contribute to technical improvement and progress, but also to scale. In addition to the increasingly sophisticated techniques and routes, equipment operators to invest outside the safety of thin film solar cells and materials is also easy to get long-term bullish of another important reason. "Silicon-based thin film solar cells without cadmium, and there is no element to use as a raw material scarcity problems in the capture of decay and the problem of low conversion efficiency, the silicon thin film solar cells will gradually be highlighted." PV head of the new Austrian said.