In order to get stable and high efficiency thin-film CdTe solar cells that the CdTe thin films surface chemical etching before deposition of a metallic contact is very important.

为了获得稳定高效的碲化镉太阳电池，在镀上金属电极前对碲化镉薄膜进行化学腐蚀是很重要的。

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CdTe, like the First Solar technology, is vapour deposited onto the glass panels to make the actual cells.

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It has an inherent competitive advantage due to its use of Cadmium Tellurium (CdTe) in its panels instead of crystalline silicon (polysilicon) used by almost all its competitors.

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The CdTe technology spearheaded by First Solar is considered by the EPIA as the most economical thin film technology recorded efficiency levels of up to 11% in 2010.

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