Effect of dynamic disorder on charge carrier dynamics in Ph4DP and Ph4DTP molecules

RSC Advances ◽  
2015 ◽  
Vol 5 (48) ◽  
pp. 38722-38732 ◽  
Author(s):  
K. Navamani ◽  
K. Senthilkumar
Keyword(s):  
Optical Properties ◽  
Electronic Structure ◽  
Charge Carrier ◽  
Charge Transport ◽  
Electronic Structure Calculations ◽  
Carrier Dynamics ◽  
Dynamic Disorder ◽  
Charge Carrier Dynamics ◽  
Structure Calculations

Electronic structure calculations were used to study the charge transport and optical properties of 2,2′,6,6′-tetraphenyldipyranylidene (Ph4DP) and its sulfur analogue 2,2′,6,6′-tetraphenyldithiopyranylidene (Ph4DTP) based molecules.

Polymorphism and the influence of crystal structure on the luminescence of the opto-electronic material 4,4′-bis(9-carbazolyl)biphenyl

CrystEngComm ◽  
2014 ◽  
Vol 16 (33) ◽  
pp. 7621-7625 ◽  
Author(s):  
Cody J. Gleason ◽  
Jordan M. Cox ◽  
Ian M. Walton ◽  
Jason B. Benedict
Keyword(s):  
Crystal Structure ◽  
Electronic Structure ◽  
Electronic Material ◽  
Single Crystal ◽  
Charge Transport ◽  
Luminescent Properties ◽  
Electronic Structure Calculations ◽  
Electronic Charge ◽  
Single Crystal Structures ◽  
Structure Calculations

Single crystal structures, luminescent properties and electronic structure calculations of three polymorphs of the opto-electronic charge transport material 4,4′-bis(9-carbazolyl)biphenyl.

Ab initio electronic structure calculations and optical properties of ordered and disordered Ni3Al

2011 ◽  
Vol 509 (17) ◽  
pp. 5230-5237 ◽  
Author(s):  
Altaf Hussain ◽  
Sitaram Aryal ◽  
Paul Rulis ◽  
M. Arshad Choudhry ◽  
Jun Chen ◽  
...  
Keyword(s):  
Optical Properties ◽  
Electronic Structure ◽  
Ab Initio ◽  
Electronic Structure Calculations ◽  
Structure Calculations ◽  
Ab Initio Electronic Structure

scholarly journals Dielectric and Absorbate Effects on the Optical Properties of Phosphazenes

1993 ◽  
Vol 328 ◽  
Author(s):  
KIM F. Ferris ◽  
W. D. Samuels ◽  
Y. Morita ◽  
G. J. Exarhos
Keyword(s):  
Optical Properties ◽  
Electronic Structure ◽  
Nonlinear Optical ◽  
Electronic Structure Calculations ◽  
Model Systems ◽  
Cyclic Molecules ◽  
Out Of Plane ◽  
Linear And Nonlinear ◽  
Bonding Systems ◽  
Structure Calculations

ABSTRACTThe optical response of polyphosphazenes can be directly related to the π (out-of-plane) and π′ (in-plane) bonding interactions intrinsic to the electronic structure of these Materials. Altering this structure either by hydrogen bonding or absórbate effects, affects both the linear and nonlinear optical susceptibilities. In this paper, we have performed electronic structure calculations on the cyclic Molecules, P3N3 (NHCH3)6, P3N3(SCH3)6, P3N3 (OCH3)6 and P4N4 (NHCH3)8 as model systems for the polymer. Charge distribution arguments are discussed to explain the influence of a polarizing electric field on the π bonding systems, and are used to suggest methods to enhance their nonlinearities.

scholarly journals Modelling charge transport and electro-optical characteristics of quantum dot light-emitting diodes

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Sung-Min Jung ◽  
Tae Hoon Lee ◽  
Sang Yun Bang ◽  
Soo Deok Han ◽  
Dong-Wook Shin ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Charge Carrier ◽  
Charge Transport ◽  
High Performance ◽  
Light Emitting Diodes ◽  
Carrier Dynamics ◽  
Computational Method ◽  
Optical Characteristics ◽  
Light Emitting ◽  
Charge Carrier Dynamics

AbstractsQuantum dot light-emitting diodes (QD-LEDs) are considered as competitive candidate for next-generation displays or lightings. Recent advances in the synthesis of core/shell quantum dots (QDs) and tailoring procedures for achieving their high quantum yield have facilitated the emergence of high-performance QD-LEDs. Meanwhile, the charge-carrier dynamics in QD-LED devices, which constitutes the remaining core research area for further improvement of QD-LEDs, is, however, poorly understood yet. Here, we propose a charge transport model in which the charge-carrier dynamics in QD-LEDs are comprehensively described by computer simulations. The charge-carrier injection is modelled by the carrier-capturing process, while the effect of electric fields at their interfaces is considered. The simulated electro-optical characteristics of QD-LEDs, such as the luminance, current density and external quantum efficiency (EQE) curves with varying voltages, show excellent agreement with experiments. Therefore, our computational method proposed here provides a useful means for designing and optimising high-performance QD-LED devices.

Thickness-Dependent Ultrafast Charge-Carrier Dynamics and Coherent Acoustic Phonon Oscillations in Mechanically Exfoliated PdSe2

2021 ◽  
Author(s):  
Chang-Fu Huo ◽  
Rui Wen ◽  
Xiao-Qing Yan ◽  
De-Kang Li ◽  
Kai-Xuan Huang ◽  
...  
Keyword(s):  
Optical Properties ◽  
Charge Carrier ◽  
Acoustic Phonon ◽  
Optoelectronic Devices ◽  
Carrier Dynamics ◽  
Promising Material ◽  
Device Performance ◽  
Charge Carrier Dynamics ◽  
Potential Applications ◽  
Coherent Acoustic Phonon

Palladium diselenide (PdSe2) recently emerged as a promising material with potential applications in electronic and optoelectronic devices due to its intriguing electronic and optical properties. The device performance is strongly...

Understanding the poor fill factor of solution-processed squaraine based solar cells in terms of charge carrier dynamics probed via impedance and transient spectroscopy

2020 ◽  
Vol 8 (42) ◽  
pp. 14748-14756
Author(s):  
Anitha B. ◽  
Vijith K. P. ◽  
Akhil Alexander ◽  
Varun Srivastava ◽  
Manoj A. G. Namboothiry
Keyword(s):  
Solar Cells ◽  
Charge Carrier ◽  
Charge Transport ◽  
Fill Factor ◽  
Carrier Dynamics ◽  
Solution Processed ◽  
Charge Carrier Dynamics ◽  
The Poor ◽  
Transient Spectroscopy

Poor charge transport and extraction along with trap-assisted recombination limit the fill factor of solution processed SQ:PCBM solar cells.

Sign in / Sign up

Export Citation Format

Share Document