Non-negligible roles of charge transfer excitons in ultrafast excitation energy transfer dynamics of a double-walled carbon nanotube

RF Xie, JB Zhang, Y Wu, L Li, XY Liu… - The Journal of Chemical …, 2023 - pubs.aip.org
Herein, we employed a developed linear response time dependent density functional theory-
based nonadiabatic dynamics simulation method that explicitly takes into account the …

The sp3 Defect Decreases Charge Carrier Lifetime in (8,3) Single-Walled Carbon Nanotubes

X Ma, R Long - The Journal of Physical Chemistry Letters, 2023 - ACS Publications
A recent experimental approach introduces sp3 defects into single-walled carbon nanotubes
(SWNTs) through controlled functionalization with guanine, resulting in a decrease in charge …

Observation of an excitonic quantum coherence in CdSe nanocrystals

S Dong, D Trivedi, S Chakrabortty, T Kobayashi… - Nano …, 2015 - ACS Publications
Recent observations of excitonic coherences within photosynthetic complexes suggest that
quantum coherences could enhance biological light harvesting efficiencies. Here, we …

Ultrafast dynamics of long-lived bound triplet pair generated by singlet fission in 6, 13-bis (triisopropylsilylethynyl) pentacene

Z Zhou, L Ma, D Guo, X Zhao, C Wang… - The Journal of …, 2020 - ACS Publications
Singlet fission (SF) converts a singlet exciton into two triplet excitons and holds great
potential in the photovoltaic field. The triplet pair state is proposed to play an important role …

Photoinduced dynamics in carbon nanotube aggregates steered by dark excitons

O Postupna, HM Jaeger… - The Journal of Physical …, 2014 - ACS Publications
Only optically active excitons can be identified by transient absorption spectroscopy, and the
actual mechanisms of exciton relaxation in nanoscale systems remain unknown as dipole …

Phonon induced pure dephasing process of excitonic state in colloidal semiconductor quantum dots

T Huang, P Han, X Wang, S Feng, W Sun, J Ye… - Superlattices and …, 2016 - Elsevier
We present a theoretical study on the pure dephasing process of colloidal semiconductor
quantum dots induced by lattice vibrations using continuum model calculations. By solving …

[图书][B] Ultrashort Pulse Lasers and Ultrafast Phenomena

T Kobayashi - 2023 - taylorfrancis.com
This book describes the basic physical principles of techniques to generate and ultrashort
pulse lasers and applications to ultrafast spectroscopy of various materials covering …

Phase analysis of coherent radial-breathing-mode phonons in carbon nanotubes: Implications for generation and detection processes

A Shimura, K Yanagi, M Yoshizawa - Physical Review B, 2018 - APS
In time-resolved pump-probe spectroscopy of carbon nanotubes, the fundamental
understanding of the optical generation and detection processes of radial-breathing-mode …

Ultrafast charge carrier and coherent phonon dynamics study of semiconductor nanostructures using femtosecond transient absorption spectroscopy

S Dong - 2017 - dr.ntu.edu.sg
Semiconductor nanomaterials are poised to revolutionize the field of electronics. Their low-
cost synthesis and unique optoelectronic properties are aligned to the needs of modern …

[PDF][PDF] 半導体カーボンナノチューブのコヒーレントフォノン分光

志村明彦 - 2017 - tohoku.repo.nii.ac.jp
カーボンナノチューブ (carbon nanotubes, CNT)[1] は, 炭素原子 1 層からできた円筒状の分子性
ナノ構造である (図 1.1). 典型的な CNT の直径は 1 ナノメート (nm) 程度 (0. 7 nm から 2 nm …