Connecting molecular structure and exciton diffusion length in rubrene derivatives.

Adv Mater

Department of Chemical Engineering and Materials Science, University of Minnesota, 151 Amundson Hall, 421 Washington Ave. S.E., Minneapolis, MN 55455, USA.

Published: July 2013

Connecting molecular structure and exciton diffusion length in rubrene derivatives demonstrates how the diffusion length of rubrene can be enhanced through targeted functionalization aiming to enhance self-Förster energy transfer. Functionalization adds steric bulk, forcing the molecules farther apart on average, and leading to increased photoluminescence efficiency. A diffusion length enhancement greater than 50% is realized over unsubstituted rubrene.

Download full-text PDF

Source
http://dx.doi.org/10.1002/adma.201300641DOI Listing

Publication Analysis

Top Keywords

diffusion length
16
length rubrene
12
connecting molecular
8
molecular structure
8
structure exciton
8
exciton diffusion
8
rubrene derivatives
8
diffusion
4
length
4
rubrene
4

Similar Publications

In this study, we analyze the characteristics of fast transient drain current () in IGZO-based field-effect transistors (FETs) with different composition ratios (device O: ratio of 1:1:1 for In, Ga, Zn, device G: ratio of 0.307:0.39:0.

View Article and Find Full Text PDF

Structurally and Electronically Anisotropic Nature of Bridgman-Grown CsSbBr Perovskite Single Crystal toward Efficient Photodetector.

ACS Appl Mater Interfaces

January 2025

Institute of New Energy Technology, College of Physics & Optoelectronic Engineering, Jinan University, Guangzhou 510632, China.

CsSbBr, as a sort of novel lead-free perovskite single crystal, has the merits of high carrier mobility and a long diffusion length. However, the large-sized and high-crystallized CsSbBr single crystals are not easily obtained. Herein, we apply the vertical Bridgman method to grow centimeter-sized CsSbBr single crystal.

View Article and Find Full Text PDF

The current intense study of ferroelectric nematic liquid crystals was initiated by the observation of the same ferroelectric nematic phase in two independently discovered organic, rod-shaped, mesogenic compounds, RM734 and DIO. We recently reported that the compound RM734 also exhibits a monotropic, low-temperature, apolar phase having reentrant isotropic symmetry (the I phase), the formation of which is facilitated to a remarkable degree by doping with small (below 1%) amounts of the ionic liquid BMIM-PF. Here we report similar phenomenology in DIO, showing that this reentrant isotropic behavior is not only a property of RM734 but is rather a more general, material-independent feature of ferroelectric nematic mesogens.

View Article and Find Full Text PDF

Ultrasmall micro-light-emitting diodes (μLEDs), sized below 10 μm, are indispensable to create the next-generation augmented and virtual reality (AR/VR) devices. Their high brightness and low power consumption could not only enhance the user experience by providing vivid and lifelike visuals but also extend device longevity. However, a notable challenge emerges: a decrease in efficiency with a reduced size.

View Article and Find Full Text PDF

Verdazyl radical polymers for advanced organic spintronics.

Nat Commun

January 2025

Charles D. Davidson School of Chemical Engineering, Purdue University, West Lafayette, IN, USA.

Spin currents have long been suggested as a potential solution to addressing circuit miniaturization challenges in the semiconductor industry. While many semiconducting materials have been extensively explored for spintronic applications, issues regarding device performance, materials stability, and efficient spin current generation at room temperature persist. Nonconjugated paramagnetic radical polymers offer a unique solution to these challenges.

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!