2010
DOI: 10.1039/c0cp01039a
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Influence of electrostatic fields on molecular electronic structure: insights for interfacial charge transfer

Abstract: Molecular and interfacial electronic structure at organic semiconductor interfaces shows a rich and subtle dependence on short- and long-range electrostatic interactions. Interface dipoles can be controlled making use of the anisotropic charge distribution at the interface, often with direct consequences also for the molecular electronic structure. In this Perspective, we will discuss the emerging understanding of how local and collective electrostatic effects control energy level alignment and molecular elect… Show more

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Cited by 30 publications
(32 citation statements)
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References 85 publications
(95 reference statements)
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“…A detailed understanding of such metal/organic interfaces is still missing, despite its importance in a number of novel technologies such as organic photovoltaic cells, thermoelectrics or field-effect transistors [57][58][59][60][61]. The data presented here offer an avenue to study factors that may be important in charge-transfer events in reduced dimensionality such as those found e.g.…”
Section: Discussionmentioning
confidence: 85%
“…A detailed understanding of such metal/organic interfaces is still missing, despite its importance in a number of novel technologies such as organic photovoltaic cells, thermoelectrics or field-effect transistors [57][58][59][60][61]. The data presented here offer an avenue to study factors that may be important in charge-transfer events in reduced dimensionality such as those found e.g.…”
Section: Discussionmentioning
confidence: 85%
“…The work function, measured at the secondary electron cut-off in photoelectron spectroscopy as a global work function [20], exhibits the balance between various forces that increase or decrease the vacuum level of a system upon molecular adsorption [5,21,22]. Molecular dipole moment [23,24], electron transfer from surface to molecule and chemisorption [25,26] as well as push-back effects [27] can all contribute to the work function change upon film growth.…”
Section: Evolution Of the Work Functionmentioning
confidence: 99%
“…Specifically, the organic / metal interface has been the subject of intense study: Exchange correlation effects, chemisorption vs. physisorption, local electric fields and gap states, among others, are considered to be key factors in establishing energy-level alignment and ultimately carrier dynamics. [1][2][3][4][5][6] In contrast, interfaces between organic semiconductors and transparent conductive oxides (TCOs) have received less attention.…”
Section: Introductionmentioning
confidence: 99%