Results 11 to 20 of about 2,100,300 (286)

Microresonators for organic semiconductor and fluidic lasers [PDF]

open access: yes, 2007
This thesis describes a number of studies of microstructured optical resonators, designed with the aim of enhancing the performance of organic semiconductor lasers and exploring potential applications. The methodology involves the micro-engineering of
Vasdekis, Andreas E.
core   +2 more sources

One- and two-photon pumped organic semiconductor lasers [PDF]

open access: yes, 2009
This thesis describes a number of studies on organic semiconductors focused around using them as gain media for lasers. The photophysical properties of organic semiconductors are studied using a wide range of experimental techniques, allowing the ...
Tsiminis, Georgios   +34 more
core   +1 more source

The Vapour Sensing Capabilities of Organic Field-Effect Transistors [PDF]

open access: yes, 2012
The work in this doctoral thesis is mainly concerned with the detection of volatile organic vapours (analytes) using organic field-effect transistors (OFETs) as transducers, in some cases using a ‘sensitiser layer’ on top of the devices to improve their ...
Hague, Lee
core   +6 more sources

Processing organic semiconductors [PDF]

open access: yes, 2010
PhDIn recent years, there has been a considerable interest in organic semiconducting materials due to their potential to enable, amongst other things, low-cost flexible opto-electronic applications, such as large-area integrated circuitry boards, light ...
Baklar, Mohammed Adnan
core   +4 more sources

245 MHz bandwidth organic light-emitting diodes used in a gigabit optical wireless data link

open access: yesNature Communications, 2020
Organic LEDs (OLEDs) have generally been considered to be slow devices. Through engineering the structure and materials of OLEDs, the authors achieve a breakthrough in the high-speed operation of OLEDs and demonstrate a 1 Gbps optical wireless link using
Kou Yoshida   +8 more
doaj   +1 more source

Engineering spin propagation across a hybrid organic/inorganic interface using a polar layer [PDF]

open access: yes, 2010
Spintronics has shown a remarkable and rapid development, for example from the initial discovery of giant magnetoresistance in spin valves (Baibich, M. N. et al. Giant magnetoresistance of (001)Fe/(001)Cr magnetic superlattices. Phys. Rev. Lett. 61, 2472–
Malik VK   +63 more
core   +1 more source

Exploring the possibility of using fluorine-involved non-conjugated electron-withdrawing groups for thermally activated delayed fluorescence emitters by TD-DFT calculation

open access: yesBeilstein Journal of Organic Chemistry, 2021
The trifluoromethyl group has been previously explored as a non-conjugated electron-withdrawing group in donor–acceptor thermally activated delayed fluorescence (TADF) emitters.
Dongyang Chen, Eli Zysman-Colman
doaj   +1 more source

Room Temperature Polariton Lasing in Ladder‐Type Oligo(p‐Phenylene)s with Different π‐Conjugation Lengths

open access: yesAdvanced Photonics Research, 2021
Polariton lasing is coherent emission that originates from macroscopic accumulation of polariton population in the ground state and is a promising route toward efficient coherent light sources as population inversion is not necessary. Unlike most Wannier–
Mengjie Wei   +5 more
doaj   +1 more source

Towards dielectric relaxation at a single molecule scale

open access: yesScientific Reports, 2022
Dielectric relaxation lies at the heart of well-established techniques of dielectric spectroscopy essential to diverse fields of research and technology. We report an experimental route for increasing the sensitivity of dielectric spectroscopy ultimately
Vitalii Stetsovych   +8 more
doaj   +1 more source

Organic semiconductor lasers with two-dimensional distributed feedback [PDF]

open access: yes, 2002
The work at hand presents a comprehensive investigation of solid-state lasers based on thin films of a disordered organic semiconductors (OS). The high luminescence yield of OS together with their conductivity and the ease of processing them into sub ...
Riechel, Stefan
core   +1 more source

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