Solvent and Distance Dependent Charge Separation in Rigid Trichromophoric Systems

Abstract

Disclaimer/Complaints regulationsIf you believe that digital publication of certain material infringes any of your rights or (privacy) interests, please let the Library know, stating your reasons. In case of a legitimate complaint, the Library will make the material inaccessible and/or remove it from the website. Please Ask the Library: http://uba.uva.nl/en/contact, or a letter to: Library of the University of Amsterdam, Secretariat, Singel 425, 1012 WP Amsterdam, The Netherlands. You will be contacted as soon as possible. The identity of the charge-separated state populated upon photoexcitation, i.e., from D 1 to A or from D 2 to A, depends on the solvent polarity and the length of the bridge separating both donor chromophores. It was found that the final charge-separated state is formed on a (sub)nanosecond time scale, whereas charge recombination shows strong solvent dependence, due to "inverted region" behavior.

(6RS,9SR)-6,7-Dibromo-1,2,3,4-tetrahydro-1,4-methanoanthracene

“…For the spectroscopy of the title compound and its preparation, see: Chen et al (2006). For the spectroscopy and electronic device applications of rigid oligo-norbornyl compounds, see: Chen et al (2002); Chow et al (2005); Lewis et al (1997); Roest et al (1996). For related structures, see: Ç elik et al (2006); Chiou et al (2001); Chow et al (1999); Lough et al (2006).…”

“…Financial support from the National Science Council of the Republic of China is gratefully acknowledged. attracted considerable attention due to their potential applications in the design of molecular devices (Lewis et al, 1997;Roest et al, 1996). Numerous types of spacers have been reported (Chiou et al, 2001;Chow et al, 1999).…”

Photocurrent Enhancement in DNA‐Scaffolded Chromophore–Aggregate‐Functionalized Systems Containing Multiple Types of Chromophores

“…or,c an control charge-separationa nd charge-recombination processes, and this has ad irect effect on the photocurrent responses. [40][41][42][43][44][45][46] In this work, it is hoped that this methodf or DNA-scaffolded chromophore-aggregate constructionc an be extendedt ot hree-components ystemsi no rder to efficiently generatep hotocurrents. Furthermore, in this study it is shown that at hree-component systemu sing the oligo-T aggregates of the diphenyldiketopyrrolopyrrole (PDPP) derivative( 3 in Scheme1)c an enhance the photocurrent generation efficiency.…”

Synthesis and characterization of ferrocene-perylenetetracarboxylic diimide–fullerene triad

“…[4][5][6][7][8][9][10][11][12][13][14] The challenge and long-range goal behind this concept is firstly, to promote efficient intramolecular energy or electron-transfer reaction and/or, secondly, to generate long-lived charge-separated states, [15][16][17][18][19] and thirdly to enhance the light-harvesting efficiency. Fortunately fullerene derives have shown excellent three-dimensional electron acceptors and possess small reorganization energy of electron transfer, which lead to remarkable acceleration of photo-induced charge separation and charge shift and deceleration of charge recombination.…”