Electron-Donating Perylene Tetracarboxylic Acids for Dye-Sensitized Solar Cells

Abstract

Novel perylene imide derivatives with both electron-donating and bulky substituents have been synthesized for dye-sensitized solar cells. The power conversion efficiency reached 2.6%, which is the highest value among perylene-sensitized TiO2 solar cells.

D-π-D chromophores based on dithieno[3,2-b:2',3'-d]thiophene (DTT): Potential application in the fabrication of solar cell

“…20 The fused structure of DTT can promote π-stacking which is predicted to be a favourable motif for high charge transport in devices. [21][22][23] This approach can help to create materials with low-energy electronic transitions based on donor-acceptor interactions. [24][25][26] In this context, Kim and Navarette designed and synthesized a series of D-π-D and D-π-A type molecules base on the DTT unit for nonlinear optical materials.…”

Synthesis and fluorescence emission properties of 1,3,6,8-tetraarylpyrenes

“…59 nm) and the tetrakis-phenyl-substituted pyrene 12 [13] arising from the increasing numbers of substituents compared with the parent pyrene 1. In the present pyrenyl-substituted pyrenes (6)(7)(8), the order is 6 < 7a/7b < 8, implying that the energy gap between ground state and excited state decreases in this order ( Table 2). For example, the emission maxima of the pyrenyl-substituted pyrenes 6, 7a/7b, and 8, consecutively shifted to longer wavelengths at 432, 451 and 465 nm respectively ( Figure 4a), in a manner similar to their absorption maxima.…”

“…naphthalene, anthracene, pyrene, perylene, etc.) and their derivatives are suitable for developing RGB emitters for OLED applications owing to their excellent fluorescent properties [5][6][7][8][9][10]. In particular, these compounds have strong -electron delocalization characteristics and can be substituted with a range of functional groups, which may be used for OLED materials with a tunable wavelength.…”

A Zinc Porphyrin Sensitizer Modified with Donor and Acceptor Groups for Dye-Sensitized Solar Cells

“…The heart of this cell is a photoanode, consisting of a nanoporous TiO 2 film covered by a monolayer of photosensitizer. 6 Considerable effort has been devoted to the development of new and efficient sensitizers suitable for practical use, such as coumarin, [7][8][9] indoline, [10][11][12] oligoene, 13,14 thiophene, [15][16][17] triarylamine, [18][19][20] perylene, [21][22][23] cyanine, [24][25][26] phthalocyanine, 27 and hemicyanine derivatives.…”