Temperature Dependence of Exciton Diffusion in a Small-Molecule Organic Semiconductor Processed With and Without Additive

2015 ◽  
Vol 27 (15) ◽  
pp. 2528-2532 ◽  
Author(s):  
Jason D. A. Lin ◽  
Oleksandr V. Mikhnenko ◽  
Thomas S. van der Poll ◽  
Guillermo C. Bazan ◽  
Thuc-Quyen Nguyen
Keyword(s):  
Temperature Dependence ◽  
Small Molecule ◽  
Organic Semiconductor ◽  
Exciton Diffusion

Annealing Behavior with Thickness Hindered Nucleation in Small-Molecule Organic Semiconductor Thin Films

2019 ◽  
Vol 19 (7) ◽  
pp. 3777-3784
Author(s):  
Jakub Rozbořil ◽  
Katharina Broch ◽  
Roland Resel ◽  
Ondřej Caha ◽  
Filip Münz ◽  
...  
Keyword(s):  
Thin Films ◽  
Small Molecule ◽  
Organic Semiconductor ◽  
Annealing Behavior ◽  
Semiconductor Thin Films

scholarly journals Ratiometric Photoelectrochemical Microsensor Based on Small-Molecule Organic Semiconductor for Reliable in Vivo Analysis

2021 ◽  
Author(s):  
Yunhui Xiang ◽  
Yao Kong ◽  
Wenqi Feng ◽  
Xiaoxue Ye ◽  
Zhi-hong Liu
Keyword(s):  
Small Molecule ◽  
Organic Semiconductor ◽  
In Vivo Analysis ◽  
Biological Environment

Photoelectrochemical (PEC) sensing has been developing quickly in recent years, while its in vivo application is still in the infancy. The complexity of biological environment poses a high challenge to...

scholarly journals Employing Pneumatic Nozzle Printing for Controlling the Crystal Growth of Small Molecule Organic Semiconductor for Field-Effect Transistors

2018 ◽  
Vol 4 (6) ◽  
pp. 1700534 ◽  
Author(s):  
Shyuan Yang ◽  
Steve Park ◽  
Johannes Bintinger ◽  
Yvan Bonnassieux ◽  
John Anthony ◽  
...  
Keyword(s):  
Crystal Growth ◽  
Small Molecule ◽  
Organic Semiconductor ◽  
Field Effect ◽  
Field Effect Transistors

scholarly journals Long-range exciton transport in brightly fluorescent furan/phenylene co-oligomer crystals

2019 ◽  
Vol 7 (1) ◽  
pp. 60-68 ◽  
Author(s):  
Artur A. Mannanov ◽  
Maxim S. Kazantsev ◽  
Anatoly D. Kuimov ◽  
Vladislav G. Konstantinov ◽  
Dmitry I. Dominskiy ◽  
...  
Keyword(s):  
Long Range ◽  
Organic Semiconductor ◽  
Semiconductor Crystal ◽  
Exciton Diffusion ◽  
Exciton Transport

Long-range exciton diffusion facilitates efficient exciton harvesting in a lightly-doped organic semiconductor crystal.

scholarly journals Excited state dynamics and exciton diffusion in triphenylamine/dicyanovinyl push–pull small molecule for organic optoelectronics

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Benedito A. L. Raul ◽  
Yuriy N. Luponosov ◽  
Wenyan Yang ◽  
Nikolay M. Surin ◽  
Olivier Douhéret ◽  
...  
Keyword(s):  
Excited State ◽  
Small Molecule ◽  
Potential Energy Surfaces ◽  
Density Functional ◽  
Diffusion Length ◽  
Bulk Heterojunction ◽  
Radiative Relaxation ◽  
Research Attention ◽  
Exciton Diffusion ◽  
Exciton Diffusion Length

AbstractTriphenylamine-based small push–pull molecules have recently attracted substantial research attention due to their unique optoelectronic properties. Here, we investigate the excited state de-excitation dynamics and exciton diffusion in TPA-T-DCV-Ph-F small molecule, having simple chemical structure with asymmetrical architecture and end-capped with electron-withdrawing p-fluorodicyanovinyl group. The excited state lifetime in diluted solutions (0.04 ns in toluene and 0.4 ns in chloroform) are found to be surprisingly shorter compared to the solid state (3 ns in PMMA matrix). Time-dependent density functional theory indicates that this behavior originates from non-radiative relaxation of the excited state through a conical intersection between the ground and singlet excited state potential energy surfaces. Exciton diffusion length of ~ 16 nm in solution processed films was retrieved by employing time-resolved photoluminescence volume quenching measurements with Monte Carlo simulations. As means of investigating the device performance of TPA-T-DCV-Ph-F, we manufactured solution and vacuum processed bulk heterojunction solar cells that yielded efficiencies of ~ 1.5% and ~ 3.7%, respectively. Our findings demonstrate that the short lifetime in solutions does not hinder per se long exciton diffusion length in films thereby granting applications of TPA-T-DCV-Ph-F and similar push–pull molecules in vacuum and solution processable devices.

Organic semiconductor core–shell nanoparticles designed through successive solvent displacements

2014 ◽  
Vol 1 (4) ◽  
pp. 431-438 ◽  
Author(s):  
Sylvain Chambon ◽  
Christophe Schatz ◽  
Vivien Sébire ◽  
Bertrand Pavageau ◽  
Guillaume Wantz ◽  
...  
Keyword(s):  
Steady State ◽  
Organic Semiconductor ◽  
Diffusion Length ◽  
Core Shell ◽  
Shell Nanoparticles ◽  
Exciton Diffusion ◽  
Exciton Diffusion Length ◽  
Core Shell Nanoparticles

The concept of sequential nanoprecipitation is developed to generate organic semiconductor core–shell nanoparticles with P3HT core and PCBM shell. Steady-state photoluminescence experiments on such nanoparticles enable the estimation of the exciton diffusion length at ∼14 nm.

The influence of directed π–π interactions in solution on the thin film organic semiconductor device properties of small molecule polymer blends

Soft Matter ◽  
2011 ◽  
Vol 7 (15) ◽  
pp. 7065 ◽  
Author(s):  
Marie-Beatrice Madec ◽  
Sean Butterworth ◽  
Pablo Taboada ◽  
Richard Heenan ◽  
Mark Geoghegan ◽  
...  
Keyword(s):  
Thin Film ◽  
Polymer Blends ◽  
Small Molecule ◽  
Organic Semiconductor ◽  
Semiconductor Device ◽  
Π Interactions ◽  
Device Properties
Sign in / Sign up

Export Citation Format

Share Document