Donor-π-Acceptors Containing the 10-(1,3-Dithiol-2-ylidene)anthracene Unit for Dye-Sensitized Solar Cells
作者:Pierre-Antoine Bouit、Magdalena Marszalek、Robin Humphry-Baker、Rafael Viruela、Enrique Ortí、Shaik M. Zakeeruddin、Michael Grätzel、Juan Luis Delgado、Nazario Martín
DOI:10.1002/chem.201201022
日期:2012.9.10
Two donor–acceptor molecular tweezers incorporating the 10‐(1,3‐dithiol‐2‐ylidene)anthracene unit as donor group and two cyanoacrylic units as accepting/anchoring groups are reported as metal‐free sensitizers for dye‐sensitized solar cells. By changing the phenyl spacer with 3,4‐ethylenedioxythiophene (EDOT) units, the absorption spectrum of the sensitizer is red‐shifted with a corresponding increase
据报道,作为染料敏化太阳能电池的无金属敏化剂,有两个将10-(1,3-二硫醇-2-亚基)蒽单元作为供体基团,将两个氰基丙烯酸单元作为接受/固定基团的供体-受体分子镊子。通过用3,4-亚乙基二氧噻吩(EDOT)单元更改苯基间隔基,敏化剂的吸收光谱会发生红移,摩尔吸收率相应增加。密度泛函计算证实了最低能量吸收带的分子内电荷转移性质。新染料的平面度极差,并通过两个锚定基团以不明的结合形式结合到TiO 2表面。挥发性CH 3的功率转换效率为3.7%在空气质量为1.5的全球日光下,基于CN的电解质。光电电压衰减瞬变和ATR-FTIR测量使我们能够了解这些新型敏化剂的光电性能以及表面粘合性。