Light Harvesting Dendrimers

Abstract

Tree-like dendrimers with decreasing number of chromophores from periphery to core is an attractive candidate for light-harvesting applications. Numerous dendritic designs with different kinds of light-collecting chromophores at periphery and an energy-sink at the core have been demonstrated with high energy transfer efficiency. These building blocks are now being developed for several applications such as light-emitting diodes, frequency converters and other photonic devices. This review outlines the efforts that are based on both conjugated and non-conjugated dendrimers.

The design and synthesis of a novel 1,8-naphthalimide PAMAM light-harvesting dendron with fluorescence “off-on” switching core

“…Progress in the study of natural photosynthetic systems has provided the impetus to design artificial light harvesting assemblies based on a variety of architectures [3][4][5][6][7][8][9][10][11][12][13][14][15]. Dendritic light harvesting assemblies have also attracted much attention because of their unique structures, which are reminiscent of those of natural light-harvesting complexes [16][17][18][19][20][21][22][23][24][25][26][27][28]. Collecting light by antenna systems may also be useful for signal amplification in luminescence sensors.…”

Resonance Energy Transfer: Theoretical Foundations and Developing Applications

“…[76][77][78][79] The materials that have received the most attention are dendrimers, 80,81 macromolecules consisting of molecular units repeatedly branching out from a central core. Designed to act as an excitation trap, dendrimers are exemplified by the structure shown in Fig.…”

Mechanisms of Light Energy Harvesting in Dendrimers and Hyperbranched Polymers

“…A key aim has been, and remains, the accomplishment of similar levels of efficiency in synthetically less demanding materials, achieved by emulating the photobiological principles of photon capture [4][5][6][7][8]. In the whole field of molecular science, multi-chromophore dendrimers represent the single type of material that has most significantly fulfilled this promise [4,5,[9][10][11][12][13][14][15][16][17][18][19]. Typically, these materials are built in a quasi-fractal geometry from chemically similar, strongly absorbing chromophores organized around a core that acts as an energy trap [10,18].…”