知搜-全球专利检索

  1. 登录
  2. 注册
发明公开
CN109103281A 太阳能电池及其制备方法 无效 - 撤回 转让

太阳能电池及其制备方法
摘要：
本公开提供一种太阳能电池及太阳能电池的制备方法。该太阳能电池包括基板、背电极、第一吸收层、缓冲层、窗口层以及顶电极。所述背电极位于所述基板上。所述第一吸收层位于所述背电极上，且所述第一吸收层的带隙沿远离基板的方向梯度增大。所述缓冲层位于所述第一吸收层上。所述窗口层位于所述缓冲层上。所述顶电极位于所述窗口层上。本公开不仅扩展了第一吸收层的吸收光谱的范围，而且使空穴在靠近基板的方向上更易传输，从而提高了太阳能电池的转换效率。
摘要（英）：

The present disclosure provides a solar cell and a preparation method thereof. The solar cell comprises a substrate, a back electrode, a first absorption layer, a buffer layer, a window layer and a top electrode. The back electrode is positioned on the substrate. The first absorbing layer is located on the back electrode, and the band gap of the first absorbing layer increases in a direction awayfrom the substrate. The buffer layer is located on the first absorbing layer. The window layer is located on the buffer layer. The top electrode is located on the window layer. The present disclosurenot only expands the range of the absorption spectrum of the first absorption layer, but also facilitates the transmission of holes in a direction close to the substrate, thereby improving the conversion efficiency of the solar cell.

0/0