New Energy Investment: Solar Cells Concentrated on Wind Power (4)

Wang Wenjing of the Solar Cell Technology Research Division of the Institute of Electrical Engineering of the Chinese Academy of Sciences told the reporter that according to the statistics of 2009, from 2005 onwards, the growth rate of thin-film batteries was faster than that of cadmium telluride, and crystalline silicon gradually declined, giving up share. It is the growth of cadmium telluride batteries.

Cadmium telluride batteries were few before 2004, but then grew rapidly. By 2009, cadmium telluride batteries accounted for 9%. Silicon-based thin-film solar cells have not changed much in recent years, starting from 4.7% and finally rising to 6.1%.

However, Shao Jun, a partner with Dresdner Capital, still has some "views" about cadmium telluride. He believes that cadmium telluride itself is an inert gas, which will eventually be limited by the maximum conversion efficiency. Second, cadmium telluride itself is toxic. If the treatment is not strict enough, it may bring about some other negative effects.

Therefore, compared with the same, Germany with the capital tends to polycrystalline silicon solar cells, and voted for the Swiss Energy Technology Corporation (SIERRA SOLAR POWER).

In addition, gallium arsenide (GaAs) materials are also receiving attention. IMEC, a Belgium-based research institute, claims that the use of single-junction gallium arsenide (GaAs) solar cells on a silicon substrate can achieve a conversion rate of 24.7%.

"We have seen GaAs-type projects, but we have not yet grasped and can not invest." Zhang Zhong revealed to reporters.