نتایج جستجو برای: light scattering layer

تعداد نتایج: 753129  

2013
Z. Starowicz M. Lipiński K. Berent R. Socha K. Szczepanowicz T. Kruk

It is known that the light scattering from the metal particles deposited on the surfaces of cells can be used for increasing light trapping in the solar cells. In this work, plasmonic structures are composite materials that consisted of silver nanoparticles embedded in dielectric films of TiO x -used as cell antireflection coating. The films are deposited by sol-gel method using spin-on techniq...

Journal: :Optics express 2012
Ricky B Dunbar Thomas Pfadler Lukas Schmidt-Mende

Plasmonic light trapping in thin film solar cells is investigated using full-wave electromagnetic simulations. Light absorption in the semiconductor layer with three standard plasmonic solar cell geometries is compared to absorption in a flat layer. We identify near-field absorption enhancement due to the excitation of localized surface plasmons but find that it is not necessary for strong ligh...

Journal: :journal of optoelectronical nano structures 0
masoud rezvani 1department of physics, malayer university, malayer, iran. maryam fathi sepahvand 1department of physics, malayer university, malayer, iran.

in this paper, scattering of a plane and monochromatic electromagnetic wave from a nano-wire is simulated using surface integral equations. first, integral equationsgoverning unknown fields on the surface is obtained based on stratton-cho surface integral equations. then, the interaction of the wave with a non-plasmonic as well as a palsmonic nano-wire is considered. it is shown that in scatter...

2013
Kong Liu Shengchun Qu Xinhui Zhang Furui Tan Zhanguo Wang

Silicon nanowire (SiNW) arrays show an excellent light-trapping characteristic and high mobility for carriers. Surface plasmon resonance of silver nanoparticles (AgNPs) can be used to increase light scattering and absorption in solar cells. We fabricated a new kind of SiNW/organic hybrid solar cell by introducing AgNPs. Reflection spectra confirm the improved light scattering of AgNP-decorated ...

Journal: :Journal of biomedical optics 2004
Andrey Bednov Sergey Ulyanov Cecil Cheung Arjun G Yodh

Modeling of skin burns has been performed in this study. Autocorrelation functions of intensity fluctuations of scattered light were measured for two-layered turbid media. The first layer served as a model for motionless scatterers (optically inhomogeneous gel film) whereas the second one simulated dynamic light scattering (Brownian motion of intralipid particles in aqueous suspension). This me...

2017
Won-Yeop Rho Da Hyun Song Sang Hun Lee Bong-Hyun Jun

Dye-sensitized solar cells (DSSCs) were fabricated with closed- or open-ended freestanding TiO₂ nanotube arrays as photoelectrodes that were decorated with carbon materials and large TiO₂ nanoparticles (NPs) to enhance energy conversion efficiency. The energy conversion efficiency of DSSCs based on open-ended freestanding TiO₂ nanotube arrays increased from 4.47% to 5.39%, compared to the DSSCs...

Journal: :Chemical communications 2011
Wei Shao Feng Gu Lili Gai Chunzhong Li

Hierarchical anatase TiO(2) nanoplates with tunable shell structure were developed as the novel planar scattering layer in dye-sensitized solar cells, showing improved cell performance due to the enhanced light harvesting capability.

2013
Wenting Hou Liang Zhao Xiaoli Wang Christian Wetzel

The n-GaN layer of c-plane GaInN/GaN light emitting diodes (LEDs) on sapphire was modified to contain a pattern of SiO2 nanorods. This embedded pattern of 300 nm long rods and diameter of 200 400 nm was created by thermal agglomeration of a Ni mask layer and subsequent dry-etching. The light output power (LOP) and external quantum efficiency (EQE) of the resulting LEDs increased both by some 25...

2014
Su-Jin Ha Jun Hyuk Moon

Dye-sensitised solar cells (DSCs) are a promising substitute for conventional silicon solar cells. A scattering layer of submicrometer pores or particles has been widely introduced to achieve a high light-harvesting efficiency. However, many such fabrication processes require high temperatures and multiple steps to prepare the scattering layer. Here, we have developed an in-situ fabrication pro...

Journal: :Physical chemistry chemical physics : PCCP 2012
Qifeng Zhang Daniel Myers Jolin Lan Samson A Jenekhe Guozhong Cao

Light scattering is a method that has been employed in dye-sensitized solar cells for optical absorption enhancement. In conventional dye-sensitized solar cells, large TiO(2) particles with sizes comparable to the wavelength of visible light are used as scatterers by either being mixed into the nanocrystalline film to generate light scattering or forming a scattering layer on the top of the nan...

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