نتایج جستجو برای: flexible dye

تعداد نتایج: 155055  

Journal: :journal of nanostructures 2012
m. malekshahi byranvand a. nemati kharat l. fatholahi

a  commercial  ti-nanoxide  was  deposited  on  in-doped  sno2 (ito) polymer  substrates by  tape casting  technique with different thicknesses  (7,  14  and  36μm)  to  be  used  as  photoelectrode  in flexible  dye-sensitized  solar  cells  (dsscs).  ruthenium  dye  was adsorbed on each tio2 film for 24 h. the resulting photoelectrodes were used to form flexible dsscs in combination with elec...

2015
Hyun-Gyu Han Hashitha C. Weerasinghe Kwang Min Kim Jeong Soo Kim Yi-Bing Cheng David J. Jones Andrew B. Holmes Tae-Hyuk Kwon

This study investigates novel deposition techniques for the preparation of TiO2 electrodes for use in flexible dye-sensitized solar cells. These proposed new methods, namely pre-dye-coating and codeposition ultrasonic spraying, eliminate the conventional need for time-consuming processes such as dye soaking and high-temperature sintering. Power conversion efficiencies of over 4.0% were achieved...

A. Nemati Kharat L. Fatholahi M. Malekshahi Byranvand,

A  commercial  Ti-Nanoxide  was  deposited  on  In-doped  SnO2 (ITO) polymer  substrates by  tape casting  technique with different thicknesses  (7,  14  and  36μm)  to  be  used  as  photoelectrode  in flexible  dye-sensitized  solar  cells  (DSSCs).  Ruthenium  dye  was adsorbed on each TiO2 film for 24 h. The resulting photoelectrodes were used to form flexible DSSCs in combination with...

2009
Yi-Hsin Lin Hung-Chun Lin Jhih-Ming Yang

We demonstrate a polarizer-free electro-optical switch using dye-doped liquid crystal (LC) gels. The mechanism of dye-doped LC gels mainly involves the combination of polymer scattering and dye absorption. However, the domain size of polymer networks, dye concentration, LC concentration, and fabrication process can all affect the phase separation process and thus result in dye-doped LC gels wit...

2000
Martin Späth Jan Kroon Ronald Kinderman John van Roosmalen

The Dye-sensitized nanocrystaline TiO2 solar cell (nc-DSC) developed by Grätzel [1] has the potential to reach low costs in future outdoor power applications. In addition, due to its expected ease of production and possibilities to adjust its appearance, the potential for application is very broad. When plastic foil is used as a substrate for the nc-DSC the production and application possibilit...

Journal: :Optics express 2008
Yi-Hsin Lin Jhih-Ming Yang Yan-Rung Lin Shie-Chang Jeng Chi-Chang Liao

A polarizer-free flexible and reflective electro-optical switch using dye-doped liquid crystal (LC) gels is demonstrated. The electro-optical performances of both scattering and absorption based dye-doped LC gels depend on curing temperatures due to domain sizes of polymer networks. Such flexible electro-optical switch is bendable and trim-able because of the vertical polymer networks and gel-l...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه گیلان - دانشکده فنی 1393

در این مطالعه نانوالیاف pva/dye در غلظت های مختلف با موفقیت آماده و به عنوان لایه حساس کننده در سلول های خورشیدی استفاده شد. نانوالیاف به دست آمده با روش تحلیلی مانندftir ، طیف سنجی uv-visو sem مورد بررسی قرار گرفت. تجزیه و تحلیل ساختاری وجود رنگزا در نانوالیاف pva/dye الکتروریسی شده را تایید کرد. باتوجه به نتایج جذب uv-vis راندمان تبدیل بالاتر برای نانولایه ی pva/dye که در غلظت 15? از محلول پل...

2010
M. MALEKSHAHI BYRANVAND M. H BAZARGAN A. NEMATI

Flexible Dye-sensitized solar cells were assembled using flexible transparent electrodes as substrates, nanocrystalline TiO2, an electrolyte based on I3/I, dye molecules and a counter electrode. In this study has been employed natural pomegranate juice for sensitization of nanocrystalline TiO2 and gold layer as counter electrode was prepared by sputtering method on conducting substrates polymer...

Journal: :Physical chemistry chemical physics : PCCP 2010
Angelo Monguzzi Francesco Scotognella Francesco Meinardi Riccardo Tubino

Lasing action in a fully organic dye doped flexible 1D random multilayer photonic crystal is reported. The emission energy can be modulated by varying layers thicknesses to fit the dye characteristics, thus showing the potential interest of such cheap materials in active devices for optoelectronic applications.

Journal: :Molecules 2014
Henning Höfig Matteo Gabba Simón Poblete Daryan Kempe Jörg Fitter

Förster resonance energy transfer (FRET) is an important tool for studying the structural and dynamical properties of biomolecules. The fact that both the internal dynamics of the biomolecule and the movements of the biomolecule-attached dyes can occur on similar timescales of nanoseconds is an inherent problem in FRET studies. By performing single-molecule FRET-filtered lifetime measurements, ...

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