Modeling temperature dependent singlet exciton dynamics in multilayered organic nanofibers

2018 ◽  
Vol 148 (20) ◽  
pp. 204101 ◽  
Author(s):  
Leonardo Evaristo de Sousa ◽  
Pedro Henrique de Oliveira Neto ◽  
Jakob Kjelstrup-Hansen ◽  
Demétrio Antônio da Silva Filho
Keyword(s):  
Temperature Dependent ◽  
Exciton Dynamics ◽  
Singlet Exciton

Study of temperature-dependent exciton dynamics in a single quantum well with self-assembled islands

1996 ◽  
Vol 361-362 ◽  
pp. 810-813 ◽  
Author(s):  
M.V. Marquezini ◽  
M.J.S.P. Brasil ◽  
J.A. Brum ◽  
P. Poole ◽  
S. Charbonneau ◽  
...  
Keyword(s):  
Quantum Well ◽  
Single Quantum ◽  
Temperature Dependent ◽  
Single Quantum Well ◽  
Exciton Dynamics ◽  
Self Assembled

scholarly journals Ultrafast Exciton Dynamics in Two Dimensional Covalent Organic Frameworks Reveals Size Dependence to Exciton Diffusion

2020 ◽  
Author(s):  
Nathan C. Flanders ◽  
Matthew S. Kirschner ◽  
Pyosang Kim ◽  
Thomas Fauvell ◽  
Austin Evans ◽  
...  
Keyword(s):  
High Performance ◽  
Transient Absorption ◽  
Domain Size ◽  
Spectroscopic Techniques ◽  
Two Dimensional ◽  
Exciton Dynamics ◽  
Singlet Exciton ◽  
Exciton Diffusion ◽  
Absorption Studies ◽  
Exciton Annihilation

<p>Large singlet exciton diffusion lengths are a hallmark of high performance in organic based devices such as photovoltaics, chemical sensors, and photodetectors. In this study, exciton dynamics of a two-dimensional covalent organic framework, COF- 5, is investigated using ultrafast spectroscopic techniques. Following photoexcitation, the COF-5 exciton decays via three pathways: 1) excimer formation (4 ± 2 ps), 2) excimer relaxation (160 ± 40 ps), and 3) excimer decay (>3 ns). Excitation fluence-dependent transient absorption studies suggest that COF-5 has a relatively large diffusion coefficient (0.08 cm2/s). Furthermore, exciton-exciton annihilation processes are characterized as a function of COF-5 crystallite domain size in four different samples, which reveal domain- size dependent exciton diffusion kinetics. These results reveal that exciton diffusion in COF-5 is constrained by its crystalline domain size. These insights indicate the outstanding promise of delocalized excitonic processes available in 2D COFs, which motivate their continued design and implementation into optoelectronic devices. </p>

Singlet exciton annihilation as a probe for exciton dynamics in α- and β-perylene crystals at 5.5 K

1976 ◽  
Vol 12-13 ◽  
pp. 231-232 ◽  
Author(s):  
E. Von Freydorf ◽  
R. Haberkorn ◽  
J. Kinder ◽  
M.E. Michel-Beyerle
Keyword(s):  
Exciton Dynamics ◽  
Singlet Exciton ◽  
Exciton Annihilation

Temperature-resolved optical spectroscopy of pentacene polymorphs: variation of herringbone angles in single-crystals and interface-controlled thin films

2016 ◽  
Vol 18 (5) ◽  
pp. 3825-3831 ◽  
Author(s):  
Ingo Meyenburg ◽  
Tobias Breuer ◽  
Andrea Karthäuser ◽  
Sangam Chatterjee ◽  
Gregor Witte ◽  
...  
Keyword(s):  
Thin Films ◽  
Single Crystals ◽  
Optical Spectroscopy ◽  
Temperature Dependent ◽  
Singlet Exciton

An interrelation between the Davydov splitted singlet-exciton and the temperature dependent herringbone angle in crystalline pentacene films is shown.

Picosecond study of singlet exciton dynamics in polyvinylcarbazole (PVK) in the temperature range 5–300 K

1985 ◽  
Vol 94 (3) ◽  
pp. 445-453 ◽  
Author(s):  
G. Peter ◽  
H. Bässler ◽  
W. Schrof ◽  
H. Port
Keyword(s):  
Exciton Dynamics ◽  
Singlet Exciton ◽  
Temperature Range

Singlet exciton dynamics of guest impurities in molecular crystals

1994 ◽  
Vol 58 (1-6) ◽  
pp. 321-323
Author(s):  
A. Krüger ◽  
C. Kryschi ◽  
D. Schmid ◽  
H.-P. Trommsdorff
Keyword(s):  
Molecular Crystals ◽  
Exciton Dynamics ◽  
Singlet Exciton

Temperature-Dependent Exciton Dynamics in J-Aggregates—When Disorder Plays a Role

2009 ◽  
Vol 113 (48) ◽  
pp. 15836-15842 ◽  
Author(s):  
Theo E. Kaiser ◽  
Ivan G. Scheblykin ◽  
Daniel Thomsson ◽  
Frank Würthner
Keyword(s):  
Temperature Dependent ◽  
Exciton Dynamics ◽  
J Aggregates

Temperature-dependent singlet exciton fission observed in amorphous rubrene films

2015 ◽  
Vol 26 ◽  
pp. 213-217 ◽  
Author(s):  
Jing Li ◽  
Zhonghai Chen ◽  
Qiaoming Zhang ◽  
Zuhong Xiong ◽  
Yong Zhang
Keyword(s):  
Temperature Dependent ◽  
Singlet Exciton ◽  
Singlet Exciton Fission

Femtosecond probing of singlet exciton dynamics in polybithiophene films

2001 ◽  
Vol 155 (1-4) ◽  
pp. 299-303
Author(s):  
A. M. Bock ◽  
D. Schmid ◽  
C. Kryschi
Keyword(s):  
Exciton Dynamics ◽  
Singlet Exciton
Sign in / Sign up

Export Citation Format

Share Document