The efficiency of polysilicon solar cell can be increased by about 13% after encapsulation.

封装后太阳电池转换效率的平均增益可达13％。

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At which point several manufacturers started making polysilicon specifically and directly for the solar cell market.

FORBES: Noahpinion's Two Errors About Free Trade: Yes, Unilateral Free Trade Is The Answer

Piper Jaffray analyst Jesse Pichel said high prices for polysilicon--a key material used in solar cell manufacturing--eroded LDK's margins.

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Many of the Chinese cell and panel producers are locked into forward contracts for their supplies of polysilicon.

FORBES: Noahpinion's Two Errors About Free Trade: Yes, Unilateral Free Trade Is The Answer