Jordan T. Dull
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View article: Discovery of Crystallizable Organic Semiconductors with Machine Learning
Discovery of Crystallizable Organic Semiconductors with Machine Learning Open
Crystalline organic semiconductors are known to have improved charge carrier mobility and exciton diffusion length in comparison to their amorphous counterparts. Certain organic molecular thin films can be transitioned from initially prepa…
View article: Discovery of Crystallizable Organic Semiconductors with Machine Learning
Discovery of Crystallizable Organic Semiconductors with Machine Learning Open
Crystalline organic semiconductors are known to have improved charge carrier mobility and exciton diffusion length in comparison to their amorphous counterparts. Certain organic molecular thin films can be transitioned from initially prepa…
View article: Discovery of Crystallizable Organic Semiconductors with Machine Learning
Discovery of Crystallizable Organic Semiconductors with Machine Learning Open
Crystalline organic semiconductors are known to have improved charge carrier mobility and exciton diffusion length in comparison to their amorphous counterparts. Certain organic molecular thin films can be transitioned from initially prepa…
View article: Thin‐Film Organic Heteroepitaxy
Thin‐Film Organic Heteroepitaxy Open
Incorporating crystalline organic semiconductors into electronic devices requires understanding of heteroepitaxy given the ubiquity of heterojunctions in these devices. However, while rules for commensurate epitaxy of covalent or ionic ino…
View article: Multimodal Characterization of Crystal Structure and Formation in Rubrene Thin Films Reveals Erasure of Orientational Discontinuities
Multimodal Characterization of Crystal Structure and Formation in Rubrene Thin Films Reveals Erasure of Orientational Discontinuities Open
Multimodal multiscale characterization provide opportunities to study organic semiconducting thin films with multiple length scales, across multiple platforms, to elucidate crystallization mechanisms of the various microstructures that imp…
View article: Powerful Organic Molecular Oxidants and Reductants Enable Ambipolar Injection in a Large-Gap Organic Homojunction Diode
Powerful Organic Molecular Oxidants and Reductants Enable Ambipolar Injection in a Large-Gap Organic Homojunction Diode Open
Doping has proven to be a critical tool for enhancing the performance of organic semiconductors in devices like organic light-emitting diodes. However, the challenge in working with high-ionization-energy (IE) organic semiconductors is to …
View article: Comparing the Expense and Accuracy of Methods to Simulate Atomic Vibrations in Rubrene
Comparing the Expense and Accuracy of Methods to Simulate Atomic Vibrations in Rubrene Open
Atomic vibrations can inform about materials properties from hole transport in organic semiconductors to correlated disorder in metal-organic frameworks. Currently, there are several methods for predicting these vibrations using simulation…
View article: Green Lithography for Delicate Materials
Green Lithography for Delicate Materials Open
A variety of unconventional materials, including biological nanostructures, organic and hybrid semiconductors, as well as monolayer, and other low‐dimensional systems, are actively explored. They are usually incompatible with standard lith…
View article: Thermal Properties, Molecular Structure, and Thin-Film Organic Semiconductor Crystallization
Thermal Properties, Molecular Structure, and Thin-Film Organic Semiconductor Crystallization Open
The crystallinity of a group of organic small molecules is investigated by vapor depositing the materials into thin films followed by a thermal annealing step. The materials are categorized into three groups: platelet-forming, spherulite-f…
View article: n‐Doping of a Low‐Electron‐Affinity Polymer Used as an Electron‐Transport Layer in Organic Light‐Emitting Diodes
n‐Doping of a Low‐Electron‐Affinity Polymer Used as an Electron‐Transport Layer in Organic Light‐Emitting Diodes Open
n‐Doping electron‐transport layers (ETLs) increases their conductivity and improves electron injection into organic light‐emitting diodes (OLEDs). Because of the low electron affinity and large bandgaps of ETLs used in green and blue OLEDs…
View article: Multiple Charge Transfer States in Donor–Acceptor Heterojunctions with Large Frontier Orbital Energy Offsets
Multiple Charge Transfer States in Donor–Acceptor Heterojunctions with Large Frontier Orbital Energy Offsets Open
Here, we demonstrate several organic amorphous donor–acceptor systems that exhibit sub-bandgap features over a more than 2 eV spectral range. An in-depth study of one of these systems, NPB:HAT-CN (NPB is N,N'-di(1-naphthyl)-N,N'-diphenyl-(…