Anisotropic energy transfer in crystalline chromophore assemblies

被引：58

作者：

Haldar, Ritesh ^{[1
]}

Jakoby, Marius ^{[2
]}

Mazel, Antoine ^{[3
]}

Zhang, Qiang ^{[1
,4
]}

Welle, Alexander ^{[1
]}

Mohamed, Tawheed ^{[1
,5
]}

Krolla, Peter ^{[1
]}

Wenzel, Wolfgang ^{[4
]}

Diring, Stephane ^{[3
]}

Odobel, Fabrice ^{[3
]}

Richards, Bryce S. ^{[2
,6
]}

Howard, Ian A. ^{[2
,6
]}

Woell, Christof ^{[1
]}

机构：

[1] Karlsruhe Inst Technol, Inst Funct Interfaces IFG, Hermann von Helmholtz Pl 1, D-76344 Eggenstein Leopoldshafen, Germany

[2] Karlsruhe Inst Technol, IMT, Hermann von Helmholtz Pl 1, D-76344 Eggenstein Leopoldshafen, Germany

[3] Univ Nantes, Univ Lunam, CNRS,UMR 6230, Chim & Interdisciplinarite Synth,Anal,Modelisat C, 2 Rue Houssiniere, F-44322 Nantes 3, France

[4] Karlsruhe Inst Technol, Inst Nanotechnol INT, D-76344 Eggenstein Leopoldshafen, Germany

[5] Natl Res Tomsk Polytech Univ TPU, Int Xray Opt Lab, Inst Phys & Technol, 30 Lenin Ave, Tomsk 634050, Russia

[6] Karlsruhe Inst Technol, LTI, Engesserstr 13, D-76131 Karlsruhe, Germany

来源：

NATURE COMMUNICATIONS | 2018年 / 9卷

关键词：

METAL-ORGANIC FRAMEWORKS; EXCITON DIFFUSION; ROOM-TEMPERATURE; DNA ORIGAMI; EFFICIENT; SIMULATIONS; MIGRATION; TRANSPORT; SYSTEMS; LEVEL;

D O I：

10.1038/s41467-018-06829-3

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

An ideal material for photon harvesting must allow control of the exciton diffusion length and directionality. This is necessary in order to guide excitons to a reaction center, where their energy can drive a desired process. To reach this goal both of the following are required; short- and long-range structural order in the material and a detailed understanding of the excitonic transport. Here we present a strategy to realize crystalline chromophore assemblies with bespoke architecture. We demonstrate this approach by assembling anthracene dibenzoic acid chromophore into a highly anisotropic, crystalline structure using a layer-by-layer process. We observe two different types of photoexcited states; one monomer-related, the other excimer-related. By incorporating energy-accepting chromophores in this crystalline assembly at different positions, we demonstrate the highly anisotropic motion of the excimer-related state along the [010] direction of the chromophore assembly. In contrast, this anisotropic effect is inefficient for the monomer-related excited state.

引用

页数：8

共 39 条

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