4.8 Article

Surface equilibration mechanism controls the molecular packing of glassy molecular semiconductors at organic interfaces

Related references

Note: Only part of the references are listed.
Review Chemistry, Multidisciplinary

A Brief History of OLEDs-Emitter Development and Industry Milestones

Gloria Hong et al.

Summary: Organic light-emitting diodes (OLEDs) have undergone significant development over the past 30 years, with advancements in emitter materials leading to three generations of OLED devices. Research is now focused on the fourth generation of OLEDs, with academia and industry achieving milestones in the development of green, orange-red, and blue OLED emitters.

ADVANCED MATERIALS (2021)

Article Chemistry, Physical

Stable Glasses of Organic Semiconductor Resist Crystallization

Kushal Bagchi et al.

Summary: Well-packed organic glasses prepared by physical vapor deposition show enhanced thermal and chemical stability, as well as increased resistance to crystallization. By controlling the deposition temperature, the resistance towards crystallization in PVD glasses of organic semiconductors can be significantly enhanced.

JOURNAL OF PHYSICAL CHEMISTRY B (2021)

Article Optics

Efficient and stable organic light-emitting devices employing phosphorescent molecular aggregates

Linyu Cao et al.

Summary: The newly developed tetradentate Pd(ii) complex Pd3O8-P with near unity photoluminescent quantum yield has potential applications in high-brightness, long-lifetime OLED devices. Its features include high quantum efficiency, reduced efficiency roll-off, and an estimated operational half-lifetime of several million hours.

NATURE PHOTONICS (2021)

Article Optics

Stable pure-blue hyperfluorescence organic light-emitting diodes with high-efficiency and narrow emission

Chin-Yiu Chan et al.

Summary: This study presents pure-blue OLEDs with high efficiency, narrow emission, and good stability, showing promise for display applications. The design is based on a two-unit stacked tandem hyperfluorescence OLED with strict control of device fabrication and procedures to further improve device lifetimes.

NATURE PHOTONICS (2021)

Article Materials Science, Multidisciplinary

Molecular orientation and thermal stability of thin-film organic semiconductors

Han-Nan Yang et al.

Summary: The orientation of organic molecules in physical-vapor deposited films varies drastically depending on thickness, as does the thermal stability of the molecular network. A simple function to quantify the molecular dipole orientation as a function of film thickness has been proposed, which is found to describe experimental data well. Additionally, the molecular orientation parameter is found to impact material density changes after thermal anneal and glass transition.

ORGANIC ELECTRONICS (2021)

Article Multidisciplinary Sciences

Surface equilibration mechanism controls the molecular packing of glassy molecular semiconductors at organic interfaces

Marie E. Fiori et al.

Summary: Superlattice structures of organic semiconductors Alq3 and DSA-Ph were prepared using PVD to study interfacial packing near buried organic-organic interfaces. Both X-ray scattering and spectroscopic ellipsometry results indicate that the substrate has a negligible influence on the PVD glass structure, suggesting the surface equilibration mechanism can describe PVD glass structure even within the first monolayer deposition on an organic substrate.

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA (2021)

Article Engineering, Electrical & Electronic

Enhanced performance of OLED based on molecular orientation of emission layer by optimized substrate temperature

Dongyue Cui et al.

Summary: The substrate temperature has a significant effect on the transition dipole moment (TDM) orientation of molecules in organic light-emitting diodes (OLEDs). Depositing the emission layer at 60 degrees C can result in the best OLED device performance, even though it is inconsistent with common rules.

JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS (2021)

Article Chemistry, Multidisciplinary

A mechanism for ageing in a deeply supercooled molecular glass

Andrew Cassidy et al.

Summary: Measurements of the decay of electric fields within vapour-deposited films of cis-methyl formate provide the first direct assessment of the energy barrier to secondary relaxation in a molecular glass. The mechanism of relaxation at temperatures far below the glass transition temperature is hindered molecular rotation, while diffusion is only demonstrated to take place close to the glass transition temperature through magnetically-polarised neutron scattering experiments.

CHEMICAL COMMUNICATIONS (2021)

Article Nanoscience & Nanotechnology

Over What Length Scale Does an Inorganic Substrate Perturb the Structure of a Glassy Organic Semiconductor?

Kushal Bagchi et al.

ACS APPLIED MATERIALS & INTERFACES (2020)

Article Chemistry, Physical

Molecular Orientation Depth Profiles in Organic Glasses Using Polarized Resonant Soft X-ray Reflectivity

Jacob L. Thelen et al.

CHEMISTRY OF MATERIALS (2020)

Article Chemistry, Physical

How to measure a structural relaxation time that is too long to be measured?

L. Berthier et al.

JOURNAL OF CHEMICAL PHYSICS (2020)

Article Chemistry, Physical

Controlling Structure and Properties of Vapor-Deposited Glasses of Organic Semiconductors: Recent Advances and Challenges

Kushal Bagchi et al.

JOURNAL OF PHYSICAL CHEMISTRY LETTERS (2020)

Article Materials Science, Multidisciplinary

Molecular deposition condition dependent structural and charge transport properties of CBP films

Zhuhong Li et al.

COMPUTATIONAL MATERIALS SCIENCE (2020)

Article Chemistry, Physical

Vapor-Deposited Glass Structure Determined by Deposition Rate-Substrate Temperature Superposition Principle

Camille Bishop et al.

JOURNAL OF PHYSICAL CHEMISTRY LETTERS (2019)

Editorial Material Multidisciplinary Sciences

Orientationally ordered glasses via controlled deposition

Peter Harrowell

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA (2019)

Article Chemistry, Physical

Origin of Anisotropic Molecular Packing in Vapor-Deposited Alq3 Glasses

Kushal Bagchi et al.

JOURNAL OF PHYSICAL CHEMISTRY LETTERS (2019)

Review Materials Science, Multidisciplinary

Recent Developments in Flexible Organic Light-Emitting Devices

Yue-Feng Liu et al.

ADVANCED MATERIALS TECHNOLOGIES (2019)

Review Chemistry, Multidisciplinary

Anisotropic Vapor-Deposited Glasses: Hybrid Organic Solids

M. D. Ediger et al.

ACCOUNTS OF CHEMICAL RESEARCH (2019)

Article Materials Science, Multidisciplinary

All-atom simulation of molecular orientation in vapor-deposited organic light-emitting diodes

Yong Youn et al.

JOURNAL OF MATERIALS CHEMISTRY C (2018)

Article Multidisciplinary Sciences

High-performance organic light-emitting diodes comprising ultrastable glass layers

Joan Rafols-Ribe et al.

SCIENCE ADVANCES (2018)

Article Materials Science, Multidisciplinary

Evidence of thermal transport anisotropy in stable glasses of vapor deposited organic molecules

Joan Rafols-Ribe et al.

PHYSICAL REVIEW MATERIALS (2018)

Article Optics

A review of recent progress in understanding the spontelectric state of matter

Oksana Plekan et al.

EUROPEAN PHYSICAL JOURNAL D (2017)

Article Chemistry, Physical

Perspective: Highly stable vapor-deposited glasses

M. D. Ediger

JOURNAL OF CHEMICAL PHYSICS (2017)

Article Chemistry, Physical

Enhanced Electrical Properties and Air Stability of Amorphous Organic Thin Films by Engineering Film Density

Yu Esaki et al.

JOURNAL OF PHYSICAL CHEMISTRY LETTERS (2017)

Review Pharmacology & Pharmacy

Surface mobility of molecular glasses and its importance in physical stability

Lian Yu

ADVANCED DRUG DELIVERY REVIEWS (2016)

Article Chemistry, Multidisciplinary

Substrate-Induced and Thin-Film Phases: Polymorphism of Organic Materials on Surfaces

Andrew O. F. Jones et al.

ADVANCED FUNCTIONAL MATERIALS (2016)

Article Multidisciplinary Sciences

Tunable molecular orientation and elevated thermal stability of vapor-deposited organic semiconductors

Shakeel S. Dalal et al.

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA (2015)

Article Chemistry, Physical

Electric Field Structures in Thin Films: Formation and Properties

Andrew Cassidy et al.

JOURNAL OF PHYSICAL CHEMISTRY A (2014)

Article Chemistry, Multidisciplinary

Organic-Organic Heterojunction Interfaces: Effect of Molecular Orientation

Wei Chen et al.

ADVANCED FUNCTIONAL MATERIALS (2011)

Article Chemistry, Multidisciplinary

Orientation Control of Linear-Shaped Molecules in Vacuum-Deposited Organic Amorphous Films and Its Effect on Carrier Mobilities

Daisuke Yokoyama et al.

ADVANCED FUNCTIONAL MATERIALS (2010)

Article Physics, Applied

Effect of deposition rate on device performance and lifetime of planar molecule-based organic light-emitting diodes

Chih-Chien Lee et al.

JOURNAL OF PHYSICS D-APPLIED PHYSICS (2010)

Article Chemistry, Multidisciplinary

Precise Structure of Pentacene Monolayers on Amorphous Silicon Oxide and Relation to Charge Transport

Stefan C. B. Mannsfeld et al.

ADVANCED MATERIALS (2009)

Article Physics, Applied

Enhanced hole mobility in ambipolar rubrene thin film transistors on polystyrene

Byoungnam Park et al.

APPLIED PHYSICS LETTERS (2008)

Article Chemistry, Multidisciplinary

Structural characterization of a pentacene monolayer on an amorphous SiO2 substrate with grazing incidence X-ray diffraction

SE Fritz et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2004)

Article Materials Science, Multidisciplinary

Optical functions of tris (8-hydroxyquinoline) aluminum (Alq3) by spectroscopic ellipsometry

AB Djurisic et al.

APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING (2003)