Optical-field driven charge-transfer modulations near composite nanostructures

doi:10.1038/s41467-020-19423-3

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	Optical-field driven charge-transfer modulations near composite nanostructures
	K. J. Lee,E. Beyreuther,S. A. Jalil,S. J. Kim,L. M. Eng,C. Guo and P. Andre
	2020
发表期刊	Nature Communications
ISSN	2041-1723
卷号	11 期号:1 页码:11
摘要	Optical activation of material properties illustrates the potentials held by tuning light-matter interactions with impacts ranging from basic science to technological applications. Here, we demonstrate for the first time that composite nanostructures providing nonlocal environments can be engineered to optically trigger photoinduced charge-transfer-dynamic modulations in the solid state. The nanostructures explored herein lead to out-of-phase behavior between charge separation and recombination dynamics, along with linear charge-transfer-dynamic variations with the optical-field intensity. Using transient absorption spectroscopy, up to 270% increase in charge separation rate is obtained in organic semiconductor thin films. We provide evidence that composite nanostructures allow for surface photovoltages to be created, which kinetics vary with the composite architecture and last beyond optical pulse temporal characteristics. Furthermore, by generalizing Marcus theory framework, we explain why charge-transfer-dynamic modulations can only be unveiled when optic-field effects are enhanced by nonlocal image-dipole interactions. Our demonstration, that composite nanostructures can be designed to take advantage of optical fields for tuneable charge-transfer-dynamic remote actuators, opens the path for their use in practical applications ranging from photochemistry to optoelectronics. Controlling and modulating charge transfer dynamics in composite nanostructures, though promising for optoelectronic applications, remains a challenge. Here, the authors report optical control of charge separation and recombination processes in organic semiconductor-based composite nanostructures.
DOI	10.1038/s41467-020-19423-3
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收录类别	SCI
语种	英语
引用统计
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/64758
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	K. J. Lee,E. Beyreuther,S. A. Jalil,S. J. Kim,L. M. Eng,C. Guo and P. Andre. Optical-field driven charge-transfer modulations near composite nanostructures[J]. Nature Communications,2020,11(1):11.
APA	K. J. Lee,E. Beyreuther,S. A. Jalil,S. J. Kim,L. M. Eng,C. Guo and P. Andre.(2020).Optical-field driven charge-transfer modulations near composite nanostructures.Nature Communications,11(1),11.
MLA	K. J. Lee,E. Beyreuther,S. A. Jalil,S. J. Kim,L. M. Eng,C. Guo and P. Andre."Optical-field driven charge-transfer modulations near composite nanostructures".Nature Communications 11.1(2020):11.

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