Charge Transfer Dynamics in Organic–Inorganic Hybrid Heterostructures—Insights by Vibrational-Sum Frequency Generation Spectroscopy
De, Ratnadip ; Calvet, Neus A. LU
and Dietzek-Ivanšić, Benjamin
(2024)
In Angewandte Chemie - International Edition
- Abstract
Organic-inorganic heterostructures play a pivotal role in modern electronic and optoelectronic applications including photodetectors and field effect transistors, as well as in solar energy conversion such as photoelectrodes of dye-sensitized solar cells, photoelectrochemical cells, and in organic photovoltaics. To a large extent, performance of such devices is controlled by charge transfer dynamics at and across (inner) interfaces, e.g., between a wide band gap semiconductor and molecular sensitizers and/or catalysts. Hence, a detailed understanding of the structure-dynamics-function relationship of such functional interfaces is necessary to rationalize possible performance limitations of these materials and devices on a molecular... (More)
Organic-inorganic heterostructures play a pivotal role in modern electronic and optoelectronic applications including photodetectors and field effect transistors, as well as in solar energy conversion such as photoelectrodes of dye-sensitized solar cells, photoelectrochemical cells, and in organic photovoltaics. To a large extent, performance of such devices is controlled by charge transfer dynamics at and across (inner) interfaces, e.g., between a wide band gap semiconductor and molecular sensitizers and/or catalysts. Hence, a detailed understanding of the structure-dynamics-function relationship of such functional interfaces is necessary to rationalize possible performance limitations of these materials and devices on a molecular level. Vibrational sum-frequency generation (VSFG) spectroscopy, as an interface-sensitive spectroscopic technique, allows to obtain chemically specific information from interfaces and combines such chemical insights with ultrafast time resolution, when integrated as a spectroscopic probe into a pump-probe scheme. Thus, this minireview discusses the advantages and potential of VSFG spectroscopy for investigating interfacial charge transfer dynamics and structural changes at inner interfaces. A critical perspective of the unique spectroscopic view of otherwise inaccessible interfaces is presented, which we hope opens new opportunities for an improved understanding of function-determining processes in complex materials, and brings together communities who are devoted to designing materials and devices with spectroscopists.
(Less)
- author
- De, Ratnadip
; Calvet, Neus A.
LU
and Dietzek-Ivanšić, Benjamin
- publishing date
- 2024
- type
- Contribution to journal
- publication status
- epub
- keywords
- heterostructures, interfacial charge transfer, organic photovoltaics, ultrafast spectroscopy, vibrational sum frequency generation spectroscopy
- in
- Angewandte Chemie - International Edition
- article number
- e202313574
- publisher
- John Wiley & Sons Inc.
- external identifiers
-
- scopus:85189662047
- pmid:38471070
- ISSN
- 1433-7851
- DOI
- 10.1002/anie.202313574
- language
- English
- LU publication?
- no
- additional info
- Publisher Copyright: © 2024 The Authors. Angewandte Chemie International Edition published by Wiley-VCH GmbH.
- id
- d094c463-8112-49c0-8f05-5dad865f8cc4
- date added to LUP
- 2024-04-16 08:42:29
- date last changed
- 2024-06-26 17:40:50
@article{d094c463-8112-49c0-8f05-5dad865f8cc4,
abstract = {{<p>Organic-inorganic heterostructures play a pivotal role in modern electronic and optoelectronic applications including photodetectors and field effect transistors, as well as in solar energy conversion such as photoelectrodes of dye-sensitized solar cells, photoelectrochemical cells, and in organic photovoltaics. To a large extent, performance of such devices is controlled by charge transfer dynamics at and across (inner) interfaces, e.g., between a wide band gap semiconductor and molecular sensitizers and/or catalysts. Hence, a detailed understanding of the structure-dynamics-function relationship of such functional interfaces is necessary to rationalize possible performance limitations of these materials and devices on a molecular level. Vibrational sum-frequency generation (VSFG) spectroscopy, as an interface-sensitive spectroscopic technique, allows to obtain chemically specific information from interfaces and combines such chemical insights with ultrafast time resolution, when integrated as a spectroscopic probe into a pump-probe scheme. Thus, this minireview discusses the advantages and potential of VSFG spectroscopy for investigating interfacial charge transfer dynamics and structural changes at inner interfaces. A critical perspective of the unique spectroscopic view of otherwise inaccessible interfaces is presented, which we hope opens new opportunities for an improved understanding of function-determining processes in complex materials, and brings together communities who are devoted to designing materials and devices with spectroscopists.</p>}},
author = {{De, Ratnadip and Calvet, Neus A. and Dietzek-Ivanšić, Benjamin}},
issn = {{1433-7851}},
keywords = {{heterostructures; interfacial charge transfer; organic photovoltaics; ultrafast spectroscopy; vibrational sum frequency generation spectroscopy}},
language = {{eng}},
publisher = {{John Wiley & Sons Inc.}},
series = {{Angewandte Chemie - International Edition}},
title = {{Charge Transfer Dynamics in Organic–Inorganic Hybrid Heterostructures—Insights by Vibrational-Sum Frequency Generation Spectroscopy}},
url = {{http://dx.doi.org/10.1002/anie.202313574}},
doi = {{10.1002/anie.202313574}},
year = {{2024}},
}