The wider the band gap, the thicker the optimal intrinsic thickness was.
禁带宽度越大，本征层最佳厚度也越大。
The thin film of the invention is provided with wider energy band gap, and solar cells provided with the thin film can significantly improve the photoelectric conversion efficiency and stability.
本发明的薄膜具有更宽的能带隙，具有这种薄膜的太阳能电池能够显著提高光电转换效率和稳定性。
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