Role of Surface Plasmon Decay Mediated Hot Carriers toward the Photoluminescence Tuning of Metal-Coated ZnO Nanorods

2017 ◽  
Vol 121 (6) ◽  
pp. 3540-3548 ◽  
Author(s):  
Tejendra Dixit ◽  
I. A. Palani ◽  
Vipul Singh
Keyword(s):  
Surface Plasmon ◽  
Zno Nanorods ◽  
Hot Carriers

scholarly journals Surface plasmon enhanced photoluminescence of ZnO nanorods by capping reduced graphene oxide sheets

2014 ◽  
Vol 22 (10) ◽  
pp. 11436 ◽  
Author(s):  
Feng Han ◽  
Shuming Yang ◽  
Weixuan Jing ◽  
Kyle Jiang ◽  
Zhuangde Jiang ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Surface Plasmon ◽  
Zno Nanorods ◽  
Enhanced Photoluminescence ◽  
Reduced Graphene ◽  
Graphene Oxide Sheets

Role of Pristine and Acid-Functionalized Fullerene on Breaking Dye Aggregates and its Impact on the Efficiency of Solar Cells

2014 ◽  
Vol 67 (5) ◽  
pp. 819
Author(s):  
Syed Mujtaba Shah ◽  
Zafar Iqbal ◽  
Muzaffar Iqbal ◽  
Naila Shahzad ◽  
Amina Hana ◽  
...  
Keyword(s):  
Solar Cells ◽  
Zno Nanoparticles ◽  
Self Assembly ◽  
Zno Nanorods ◽  
Active Material ◽  
Dye Sensitized Solar Cells ◽  
Dye Sensitized ◽  
Transmission Electron ◽  
Sensitized Solar Cells

Porphyrin dyes have an inherent tendency to aggregate. This leads to a self-quenching phenomenon that hinders electron transfer to the conduction band of semiconductors in dye-sensitized solar cells. Self-quenching adversely affects the efficiency of solar cells. Here, we report the interaction of porphyrin with pristine and acid-functionalized fullerene molecules on the surface of ZnO nanoparticles under chemisorbed conditions. Chemisorption of porphyrin only on ZnO nanoparticles instigates aggregation of the porphyrin molecules. These aggregates can be effectively broken by chemisorbing fullerene molecules on the surface of the ZnO nanoparticles. This is due to self-assembly formation processes because of porphyrin–fullerene interactions. The nanohybrid material, consisting of ZnO nanorods, acid-functionalized porphyrin, and fullerene derivatives, was characterized by UV–visible spectroscopy, fourier transform infrared spectroscopy, fluorescence spectroscopy, and transmission electron microscopy. The material generates better performing dye-sensitized solar cells when compared with those fabricated from porphyrin-based photo-active material.

The anisotropic broadband surface plasmon polariton and hot carrier properties of borophene monolayer

Nanophotonics ◽  
2022 ◽  
Vol 0 (0) ◽  
Author(s):  
Chaochao Jian ◽  
Xiangchao Ma ◽  
Jianqi Zhang ◽  
Jiali Jiang
Keyword(s):  
Transport Properties ◽  
Surface Plasmon ◽  
Surface Plasmon Polariton ◽  
Hot Carriers ◽  
Low Loss ◽  
Typical Application ◽  
Carrier Lifetimes ◽  
Photocatalytic Reactors ◽  
Plasmon Polariton ◽  
Energy And Momentum

Abstract Borophene monolayer with its intrinsic metallic and anisotropic band structures exhibits extraordinary electronic, optical, and transport properties. Especially, the high density of Dirac electrons enables promising applications for building low-loss broadband SPP devices. However, a systematic characterization of the surface plasmon polariton (SPP) properties and hot carriers generated from the inevitable SPP decay in borophene has not been reported so far. Most importantly, the mechanism for SPP losses remains obscurely quantified. In this work, from a fully first-principles perspective, we explicitly evaluate the main loss effects of SPP in borophene, including the Drude resistance, phonon-assisted intraband and direct interband electronic transitions. With this knowledge, we further calculate the frequency- and polarization-dependent SPP response of borophene, and evaluate some typical application-dependent figure of merits of SPP. On the other hand, we evaluate the generation and transport properties of plasmon-driven hot carriers in borophene, involving energy- and momentum-dependent carrier lifetimes and mean free paths, which provide deeper insight toward the transport of hot carriers at the nanoscale. These results indicate that borophene has promising applications in next-generation low-loss optoelectronic devices and photocatalytic reactors.

scholarly journals Kajian Pengaruh Material Graphene pada kinerja Biosensor Berbasis Surface Plasmon Resonance (SPR) pada Deteksi Makanan Halal sebagai Pendukung Halal Research Center UIN Sunan Kalijaga Yogyakarta

2017 ◽  
Vol 7 (1) ◽  
pp. 1
Author(s):  
Wida Yanti ◽  
Asih Melati
Keyword(s):  
Surface Plasmon Resonance ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Analytical Calculation ◽  
Detection Sensitivity ◽  
Research Center ◽  
Attenuated Total Reflectance ◽  
Muslim Community ◽  
Spr Biosensor

<p><br />Halal foods and medicines are an absolute daily needs for the Muslim community in Indonesia. Therefore the authority institutions in indonesian goverment should ensure the availability of this. It is of course inseparable from the role of higher education through the development of its technology to develop halal detection of foods and drugs. This study is an effort to contribute to the Halal Research Center of UIN Sunan Kalijaga Yogyakarta through the biosensor development in halal detection foods and medicines based on biosensor SPR. This device using graphene materials to improve the detection sensitivity of pork gelatin material that is likely contained in foodstuffs and medicine. From analytical calculation and computation, enhancement of the SPR biosensor performance by involvement graphene it was shown through the ATR (Attenuated Total Reflectance) reflective curve. The result of this results was found the enhancement of the sensitivity 2,86 %.</p><p>Keyword: Surface Plasmon Resonance (SPR), Porcine Gelatin, Graphene, ATR</p>

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