Controlling structure and properties of vapor-deposited glasses of organic semiconductors: Recent advances and challenges

K Bagchi, MD Ediger - The Journal of Physical Chemistry Letters, 2020 - ACS Publications
The past decade has seen great progress in manipulating the structure of vapor-deposited
glasses of organic semiconductors. Upon varying the substrate temperature during …

Anisotropic vapor-deposited glasses: hybrid organic solids

MD Ediger, J De Pablo, L Yu - Accounts of chemical research, 2019 - ACS Publications
Conspectus The term “organic solids” encompasses both crystals and glasses. Organic
crystals are commonly grown for purification and structure determination and are being …

Influence of molecular shape on the thermal stability and molecular orientation of vapor-deposited organic semiconductors

DM Walters, L Antony, JJ de Pablo… - The Journal of Physical …, 2017 - ACS Publications
High thermal stability and anisotropic molecular orientation enhance the performance of
vapor-deposited organic semiconductors, but controlling these properties is a challenge in …

Probing molecular packing of amorphous pharmaceutical solids using X-ray atomic pair distribution function and solid-state NMR

Z Chen, H Nie, CJ Benmore, PA Smith… - Molecular …, 2023 - ACS Publications
The structural investigation of amorphous pharmaceuticals is of paramount importance in
comprehending their physicochemical stability. However, it has remained a relatively …

Molecular Mechanism of Crystalline-to-Amorphous Conversion of Pharmaceutical Solids from 19F Magic Angle Spinning NMR

X Lu, C Huang, M Li, D Skomski, W Xu… - The Journal of …, 2020 - ACS Publications
Crystalline and amorphous materials usually possess distinct physicochemical properties
due to major variations in long-range and local molecular packings. Enhanced fundamental …

Deep blue fluorescent material with an extremely high ratio of horizontal orientation to enhance light outcoupling efficiency (44%) and external quantum efficiency in …

JH Lee, HY Lin, CH Chen, YT Lee… - … Applied Materials & …, 2021 - ACS Publications
A novel bis-4Ph-substituted 9, 10-dipehnylanthracene deep blue [1931 CIE (0.15, 0.08)]
fluorescent compound, AnB4Ph, has been synthesized and characterized for organic light …

Vapor deposition of a nonmesogen prepares highly structured organic glasses

C Bishop, JL Thelen, E Gann, MF Toney, L Yu… - Proceedings of the …, 2019 - pnas.org
We show that glasses with aligned smectic liquid crystal-like order can be produced by
physical vapor deposition of a molecule without any equilibrium liquid crystal phases …

Anisotropic organic glasses

A Gujral, L Yu, MD Ediger - Current Opinion in Solid State and Materials …, 2018 - Elsevier
While the last decades have seen considerable efforts to control molecular packing in
organic crystals, the idea of controlling packing in organic glasses is relatively unexplored …

Role of molecular layering in the enhanced mechanical properties of stable glasses

SE Wolf, S Fulco, A Zhang, H Zhao… - The Journal of …, 2022 - ACS Publications
The density, degree of molecular orientation, and molecular layering of vapor-deposited
stable glasses (SGs) vary with substrate temperature (T dep) below the glass-transition …

Molecular orientation for vapor-deposited organic glasses follows rate-temperature superposition: The case of posaconazole

C Bishop, Y Li, MF Toney, L Yu… - The Journal of Physical …, 2020 - ACS Publications
The anisotropic properties of organic glasses produced by physical vapor deposition (PVD)
depend upon substrate temperature and deposition rate. In recent work, it was shown for a …