Dye compound for dye-sensitized solar cells, dye-sensitized photoelectric converter and dye-sensitized solar cells
申请人:Samsung Electro-Mechanics Co., Ltd
公开号:EP2192159A3
公开(公告)日:2011-03-09
A dye compound for solar cells, a dye-sensitized photoelectric converter and dye-sensitized solar cells are provided. The photoelectric conversion efficiency of solar cells is improved by using the dye compound:
of which X is at least one aromatic group and symmetric about the X-R1 bond axis or at least hetero aromatic group having at least one hetero atom chosen from N and S and symmetric about the X-R1 bond axis; R1is substituted or unsubstituted C1 to C20 cyclic alkyl or substituted or unsubstituted C1 to C20 linear alkyl; L1 and L2 are substituted or unsubstituted hydrocarbons having 2 to 8 conjugated p-orbitals; Y1 and Y2 are better electron-withdrawing groups than X and may contain at least one acidic hydrogen which is able to form a hydrogen bond.
提供了一种用于太阳能电池的染料化合物,染料敏化光电转换器和染料敏化太阳能电池。通过使用染料化合物,提高了太阳能电池的光电转换效率:其中X至少是一个芳香族基团,并且关于X-R1键轴对称,或者至少是一个含有至少一个来自N和S的杂原子的杂环芳基团,并且关于X-R1键轴对称;R1被取代或未取代的C1到C20环烷基或取代或未取代的C1到C20直链烷基;L1和L2是取代或未取代的具有2到8个共轭p轨道的碳氢化合物;Y1和Y2比X更好地吸电子基团,并且可能含有至少一个能够形成氢键的酸性氢。