Exciton-plasmon interaction in two-dimensional semiconductors for refined light emission (Conference Presentation)

2018 ◽  
Author(s):  
Jeongyong Kim
Keyword(s):  
Light Emission ◽  
Two Dimensional ◽  
Plasmon Interaction

scholarly journals Two-dimensional photonic crystals increasing vertical light emission from Si nanocrystal-rich thin layers

2018 ◽  
Vol 9 ◽  
pp. 2287-2296
Author(s):  
Lukáš Ondič ◽  
Marian Varga ◽  
Ivan Pelant ◽  
Alexander Kromka ◽  
Karel Hruška ◽  
...  
Keyword(s):  
Photonic Crystals ◽  
Light Emission ◽  
Periodic Structures ◽  
Normal Direction ◽  
Thin Layers ◽  
Two Dimensional ◽  
Lattice Constants ◽  
Leaky Modes ◽  
Si Nanocrystals ◽  
Si Nanocrystal

We have fabricated two-dimensional photonic crystals (PhCs) on the surface of Si nanocrystal-rich SiO2 layers with the goal to maximize the photoluminescence extraction efficiency in the normal direction. The fabricated periodic structures consist of columns ordered into square and hexagonal pattern with lattice constants computed such that the red photoluminescence of Si nanocrystals (SiNCs) could couple to leaky modes of the PhCs and could be efficiently extracted to surrounding air. Samples having different lattice constants and heights of columns were investigated in order to find the configuration with the best performance. Spectral overlap of the leaky modes with the luminescence spectrum of SiNCs was verified experimentally by measuring photonic band diagrams of the leaky modes employing angle-resolved spectroscopy and also theoretically by computing the reflectance spectra. The extraction enhancement within different spatial angles was evaluated by means of micro-photoluminescence spectroscopy. More than 18-fold extraction enhancement was achieved for light propagating in the normal direction and up to 22% increase in overall intensity was obtained at the spatial collection angle of 14°.

Broadband white-light emission with a high color rendering index in a two-dimensional organic–inorganic hybrid perovskite

2018 ◽  
Vol 6 (5) ◽  
pp. 1171-1175 ◽  
Author(s):  
Zhenyue Wu ◽  
Chengmin Ji ◽  
Zhihua Sun ◽  
Sasa Wang ◽  
Sangen Zhao ◽  
...  
Keyword(s):  
White Light ◽  
Light Emission ◽  
White Light Emission ◽  
Two Dimensional ◽  
Inorganic Hybrid ◽  
Hybrid Perovskite ◽  
Color Rendering Index ◽  
Color Rendering

Broadband white-light emission with an ultrahigh CRI of 93 based on an organic–inorganic hybrid 2D corrugated perovskite.

Investigation of Chemical Origin of White-Light Emission in Two-Dimensional (C4H9NH3)2PbBr4 via Infrared Nanoscopy

2019 ◽  
Vol 10 (24) ◽  
pp. 7942-7948 ◽  
Author(s):  
Dae Young Park ◽  
Sung-Jin An ◽  
Chanwoo Lee ◽  
Duc Anh Nguyen ◽  
Kang-Nyeoung Lee ◽  
...  
Keyword(s):  
White Light ◽  
Light Emission ◽  
White Light Emission ◽  
Two Dimensional

Direct Imaging of Light Emission Centers in Two-Dimensional Crystals and Their Luminescence and Photocatalytic Properties

2014 ◽  
Vol 53 (48) ◽  
pp. 13078-13082 ◽  
Author(s):  
Shintaro Ida ◽  
Shota Koga ◽  
Takeshi Daio ◽  
Hidehisa Hagiwara ◽  
Tatsumi Ishihara
Keyword(s):  
Light Emission ◽  
Photocatalytic Properties ◽  
Two Dimensional ◽  
Direct Imaging

scholarly journals Bilayer graphene: physics and application outlook in photonics

Nanophotonics ◽  
2015 ◽  
Vol 4 (1) ◽  
pp. 115-127 ◽  
Author(s):  
Hugen Yan
Keyword(s):  
Layered Materials ◽  
Bilayer Graphene ◽  
Layered Material ◽  
Two Dimensional ◽  
Fano Resonances ◽  
Phonon Interaction ◽  
Electron Phonon Interaction ◽  
Basic Physics ◽  
Gap Opening ◽  
Plasmon Interaction

AbstractLayered materials, such as graphene, transition metal dichacogenides and black phosphorus have attracted lots of attention recently. They are emerging novel materials in electronics and photonics, with tremendous potential in revolutionizing the traditional electronics and photonics industry. Marrying layered material to the nanophotonics is being proved fruitful. With the recent emphasis and development of metasurfaces in nanophotonics, atomically thin materials can find their unique position and strength in this field. In this article, I will focus on one specific two dimensional material: bilayer graphene. Basic physics will be reviewed, such as band-gap opening, electron-phonon interaction, phonon-plasmon interaction and Fano resonances in the optical response. Moreover, I will review the application of bilayer graphene as a sensitive and fast photodetector. An outlook will be given in the final part of the paper.

scholarly journals Control of two-dimensional excitonic light emission via photonic crystal

2D Materials ◽  
2014 ◽  
Vol 1 (1) ◽  
pp. 011001 ◽  
Author(s):  
Sanfeng Wu ◽  
Sonia Buckley ◽  
Aaron M Jones ◽  
Jason S Ross ◽  
Nirmal J Ghimire ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Light Emission ◽  
Two Dimensional

Mechanism for Broadband White-Light Emission from Two-Dimensional (110) Hybrid Perovskites

2016 ◽  
Vol 7 (12) ◽  
pp. 2258-2263 ◽  
Author(s):  
Te Hu ◽  
Matthew D. Smith ◽  
Emma R. Dohner ◽  
Meng-Ju Sher ◽  
Xiaoxi Wu ◽  
...  
Keyword(s):  
White Light ◽  
Light Emission ◽  
White Light Emission ◽  
Two Dimensional

scholarly journals Morphology-Independent Stable White-Light Emission from Self-Assembled Two-Dimensional Perovskites Driven by Strong Exciton–Phonon Coupling to the Organic Framework

2017 ◽  
Vol 29 (9) ◽  
pp. 3947-3953 ◽  
Author(s):  
Krishnamoorthy Thirumal ◽  
Wee Kiang Chong ◽  
Wei Xie ◽  
Rakesh Ganguly ◽  
Subas Kumar Muduli ◽  
...  
Keyword(s):  
White Light ◽  
Light Emission ◽  
White Light Emission ◽  
Two Dimensional ◽  
Phonon Coupling ◽  
Self Assembled ◽  
Organic Framework
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