Advanced light emitting devices for optoelectronic applications

2008 ◽  
Author(s):  
Jaroslav Kovác ◽  
Ján Jakabovic ◽  
Milan Kytka
Keyword(s):  
Light Emitting ◽  
Light Emitting Devices ◽  
Optoelectronic Applications

Plexcitonics – fundamental principles and optoelectronic applications

2019 ◽  
Vol 7 (7) ◽  
pp. 1821-1853 ◽  
Author(s):  
Ajay P. Manuel ◽  
Aaron Kirkey ◽  
Najia Mahdi ◽  
Karthik Shankar
Keyword(s):  
Electromagnetic Radiation ◽  
Light Harvesting ◽  
Light Emitting ◽  
Light Emitting Devices ◽  
Optoelectronic Applications

The nanoscale confinement and coupling of electromagnetic radiation into plexcitonic modes has drawn immense interest because of the innovative possibilities for their application in light harvesting and light emitting devices (LEDs).

Properties and potential optoelectronic applications of lead halide perovskite nanocrystals

Science ◽  
2017 ◽  
Vol 358 (6364) ◽  
pp. 745-750 ◽  
Author(s):  
Maksym V. Kovalenko ◽  
Loredana Protesescu ◽  
Maryna I. Bodnarchuk
Keyword(s):  
Silicon Germanium ◽  
Semiconductor Nanocrystals ◽  
Structural Defects ◽  
Defect Tolerance ◽  
Light Emitting ◽  
Light Emitting Devices ◽  
Optical And Electronic Properties ◽  
Benign Nature ◽  
Optoelectronic Applications ◽  
Lead Halide

Semiconducting lead halide perovskites (LHPs) have not only become prominent thin-film absorber materials in photovoltaics but have also proven to be disruptive in the field of colloidal semiconductor nanocrystals (NCs). The most important feature of LHP NCs is their so-called defect-tolerance—the apparently benign nature of structural defects, highly abundant in these compounds, with respect to optical and electronic properties. Here, we review the important differences that exist in the chemistry and physics of LHP NCs as compared with more conventional, tetrahedrally bonded, elemental, and binary semiconductor NCs (such as silicon, germanium, cadmium selenide, gallium arsenide, and indium phosphide). We survey the prospects of LHP NCs for optoelectronic applications such as in television displays, light-emitting devices, and solar cells, emphasizing the practical hurdles that remain to be overcome.

scholarly journals Recent Advances and Opportunities of Lead-Free Perovskite Nanocrystal for Optoelectronic Application

2021 ◽  
Vol 2021 ◽  
pp. 1-38
Author(s):  
Fei Zhang ◽  
Zhuangzhuang Ma ◽  
Zhifeng Shi ◽  
Xu Chen ◽  
Di Wu ◽  
...  
Keyword(s):  
Lead Toxicity ◽  
Environmental Stability ◽  
Lead Free ◽  
Attractive Alternative ◽  
Comprehensive Overview ◽  
Light Emitting ◽  
Practical Applications ◽  
Light Emitting Devices ◽  
Optoelectronic Application ◽  
Optoelectronic Applications

Metal halide perovskite nanocrystals (NCs), as a new class of light-emitting and light-harvesting materials, have recently attracted intensive attention for an impressive variety of optoelectronic applications. However, the lead toxicity and poor stability of such materials severely restrict their practical applications and future commercialization. Lead-free perovskite NCs and their derivatives, designed by the reasonable chemical substitution of Pb with other nontoxic elements, are recently booming as an attractive alternative to lead-based counterparts. In this review, we firstly present a comprehensive overview of currently explored lead-free perovskite NCs with an emphasis on their design routes, morphologies, optoelectronic properties, and environmental stability issues. Then, we discuss the preliminary achievements of lead-free perovskite NCs in versatile optoelectronic applications, such as light-emitting devices, solar cells, photodetectors, and photocatalysis. We finish this review with a critical outlook into the currently existing challenges and possible development opportunities of this rapidly evolving field.

Heterostructures based on nitrides of group III elements: technical processes, properties, and light-emitting devices

2001 ◽  
Vol 171 (8) ◽  
pp. 857 ◽  
Author(s):  
Igor L. Krestnikov ◽  
V.V. Lundin ◽  
A.V. Sakharov ◽  
D.A. Bedarev ◽  
E.E. Zavarin ◽  
...  
Keyword(s):  
Light Emitting ◽  
Group Iii ◽  
Light Emitting Devices

Probing local photophysical properties in perovskite based light-emitting devices

2019 ◽  
Author(s):  
Miguel Anaya ◽  
Kyle Frohna ◽  
Linsong Cui ◽  
Javad Shamsi ◽  
Sam Stranks
Keyword(s):  
Photophysical Properties ◽  
Light Emitting ◽  
Light Emitting Devices

Color Variable Bipolar/AC Light-Emitting Devices Based on Conjugated Polymers

1997 ◽  
Author(s):  
Y. Z. Wang ◽  
D. D. Gebler ◽  
D. K. Fu ◽  
T. M. Swager ◽  
A. J. Epstein
Keyword(s):  
Conjugated Polymers ◽  
Light Emitting ◽  
Light Emitting Devices

scholarly journals Exciton Coupling and Conformational Changes Impacting the Excited State Properties of Metal Organic Frameworks

Molecules ◽  
2020 ◽  
Vol 25 (18) ◽  
pp. 4230
Author(s):  
Andreas Windischbacher ◽  
Luca Steiner ◽  
Ritesh Haldar ◽  
Christof Wöll ◽  
Egbert Zojer ◽  
...  
Keyword(s):  
Conformational Changes ◽  
Photophysical Properties ◽  
Metal Organic Framework ◽  
Metal Organic Frameworks ◽  
Red Shift ◽  
Light Emitting ◽  
Light Emitting Devices ◽  
Exciton Coupling ◽  
Metal Organic ◽  
Crystalline Metal

In recent years, the photophysical properties of crystalline metal-organic frameworks (MOFs) have become increasingly relevant for their potential application in light-emitting devices, photovoltaics, nonlinear optics and sensing. The availability of high-quality experimental data for such systems makes them ideally suited for a validation of quantum mechanical simulations, aiming at an in-depth atomistic understanding of photophysical phenomena. Here we present a computational DFT study of the absorption and emission characteristics of a Zn-based surface-anchored metal-organic framework (Zn-SURMOF-2) containing anthracenedibenzoic acid (ADB) as linker. Combining band-structure and cluster-based simulations on ADB chromophores in various conformations and aggregation states, we are able to provide a detailed explanation of the experimentally observed photophysical properties of Zn-ADB SURMOF-2: The unexpected (weak) red-shift of the absorption maxima upon incorporating ADB chromophores into SURMOF-2 can be explained by a combination of excitonic coupling effects with conformational changes of the chromophores already in their ground state. As far as the unusually large red-shift of the emission of Zn-ADB SURMOF-2 is concerned, based on our simulations, we attribute it to a modification of the exciton coupling compared to conventional H-aggregates, which results from a relative slip of the centers of neighboring chromophores upon incorporation in Zn-ADB SURMOF-2.

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