GREEN ZINC PORPHYRIN SENSITIZERS AND THEIR APPLICATIONS
申请人:YEH Chen-Yu
公开号:US20130090469A1
公开(公告)日:2013-04-11
The present invention relates to zinc porphyrin-based photosensitive dyes, specifically to zinc porphyrin-based photosensitive dyes with green transparency. The photosensitive dyes exhibit high push-pull ability in the zinc porphyrin-based structure, higher absorption and power conversion efficiency. The photosensitive dyes are used in the manufacture of dye-sensitive solar cells.
Facile synthesis and supramolecular chemistry of hydrogen bond/halogen bond-driven multi-tasking tectons
作者:Christer B. Aakeröy、Prashant D. Chopade、Claudia Ganser、John Desper
DOI:10.1039/c1cc10436e
日期:——
Hydrogen bonds and halogen bonds can be used as synthetic vectors without structural interference as long as the primary molecular recognition events are designed around a careful combination of geometric and electrostatic complementarity. In addition, a one-step procedure for the synthesis of tectons equipped with powerful hydrogen- and halogen-bond donors is presented.
Molecularcapsules based solely on the interaction of halogenbonding (XB) are presented along with their host–guest binding properties in solution. The first example of a well‐defined four‐point XB supramolecular system is realized by decorating resorcin[4]arene cavitands with polarized halogen atoms for dimerization with tetra(4‐pyridyl) resorcin[4]arene cavitands. NMR binding data for the F, Cl
interface to suppress the ion migration by increasing the corresponding activation energy. Various characterizations have proved that halogen-halogen bonds form between 2D and 3D phases, which do suppress the halide segregation. As expected, the encapsulated device retains 90% of initial power conversion efficiency (PCE) after maximum power point (MPP) tracking for ∼500 h under continuous simulated 1-sun
混合卤化物钙钛矿提供带隙可调性,这对于串联太阳能电池应用至关重要。然而,离子迁移引起的相分离严重影响了器件的长期运行稳定性。因此,该问题代表了整个钙钛矿社区的重要挑战,迫切需要有效的解决方案。我们在这里首次展示了在相界面引入了强化学相互作用,即卤素 - 卤素键,通过增加相应的活化能来抑制离子迁移。各种表征已经证明在 2D 和 3D 相之间形成卤素 - 卤素键,这确实抑制了卤化物偏析。正如预期的那样,
tetrafluoroiodobenzene based halogen bond-donor and non-mesogenic or mesogenic azopyridine derivatives as halogen bond-acceptors. The liquid crystalline behaviour of the prepared materials was characterized by differential scanning calorimetry (DSC), polarized optical microscope (POM) and X-ray diffraction (XRD). Upon irradiation with UV light, the complexes undergo fast and reversible photoinduced phase