Neutral copper(<scp>i</scp>) dipyrrin complexes and their use as sensitizers in dye-sensitized solar cells
作者:Tracy E. Hewat、Lesley J. Yellowlees、Neil Robertson
DOI:10.1039/c3dt53334d
日期:——
from 450 nm to 600 nm. Complex 3 shows photoluminescence lifetime in the order of nanoseconds suggesting singlet fluorescence which is supported by theoretical calculations. Study of the complexes as sensitisers in dye-sensitised solar cells was achieved by assembling the dye in situ on the surface of TiO2 in a series of steps (anchoring ligand followed by ancillary ligand and [Cu(CH3CN)4][BF4]. The highest
合成了具有通式[Cu(4,4'-(R)-6,6'-(CH 3)-联吡啶)(联吡啶)],R = CH 3或CO的杂多性中性铜(I)双吡啶复合物2 Et和H-联吡啶为1,3,7,9-四甲基联吡啶(HL1),1,13-联苯-6,8-二异吲哚亚甲基(HL2)或1,13-联苯-3,11 -di(三氟甲基)-6,8-二异吲哚基亚甲基(HL3)。在整个L1-L3系列中观察到了更高的稳定性,这可能是由于配体之间更好的空间约束所致。从450 nm到600 nm的吸收发生红移,可见光吸收也得到了增强。复杂3显示了以纳秒为单位的光致发光寿命,暗示了单峰荧光,这得到了理论计算的支持。染料敏化太阳能电池中作为敏化剂的配合物的研究是通过在一系列步骤中将染料原位组装在TiO 2的表面上来实现的(先将配体锚固,然后是辅助配体和[Cu(CH 3 CN)4 ] [BF 4 ]。含HL3的染料实现的最高效率为0.41%,这归因于更好的氧化势,染料再生效果更好。