نتایج جستجو برای: dye sensitized solar cells dssc

تعداد نتایج: 1514342  

2012
Najeeb Ullah

In this paper, the comparative studies of dye sensitized solar cells (DSSC) manufactured with different cathode materials have been investigated. It has been observed that different cathode materials have different bandgap energies and it directly affect the efficiency of DSSC. The tested materials for counter electrode are carbon black and graphite. Although both of these materials are carbon ...

Journal: :journal of nanostructures 2016
m. malekshahi byranvand

dye-sensitized solar cells present promising low-cost alternatives to the conventional silicon (si)-based solar cells. the counter electrode  generally consists of pt deposited onto fto plate. since pt is rare and expensive metal, nanostructured carbonaceous materials have been widely investigated as a promising alternative to replace it. carbon nanotubes  have shown significant properties such...

Journal: :Nanoscale 2014
Geng-Jia Chang Shou-Yen Lin Jih-Jen Wu

ZnO nanoarchitectured anodes composed of the ZnO nanocactus array and the top ZnO particle layer are chemically integrated on ITO-PET substrates using a facile room-temperature chemical bath deposition method for dye-sensitized solar cells (DSSCs). In the absence of high-temperature post-treatment and mechanical compression, a notable efficiency of 5.24% is simply achieved in the flexible ZnO D...

Journal: :journal of nanostructures 2014
m. mazloum ardakani a. dehghani firouzabadi a. benvidi b. b fatemeh mirjalili r. zare

new kinds of hydroquinone derivatives were synthesized and along with a azo dye applied as additives in the iodide/iodine redox electrolyte for dye-sensitized solar cells and their effect on the short-circuit photocurrent of dye sensitized solar cells was investigated. addition of 0.05 m a hydroquinone derivative in the electrolyte comprising 0.5 m 1-methyl-3-propylimidazolium iodide (mpii) and...

Journal: :Chemical communications 2014
Hyo-Jin Ahn Ik-Hee Kim Jong-Chul Yoon Sun-I Kim Ji-Hyun Jang

We report CVD-grown p-doped three-dimensional graphene nano-networks (3D-GNs) that provide superior performance to Pt as a counter electrode material in dye sensitized solar cells (DSSCs). The 3D-GN based DSSC exhibits a maximum photoconversion efficiency of 8.46%, which is 6.01% greater than that exhibited by Pt based DSSCs.

In this paper we studied preparation of working films of dye-sensitized solar cells using screen printed method. The organic dye based on phenoltiazine with cyanoacrylic acid as the electron donor group utilized as photosensitizer. Fluorine-doped thin oxide FTO coated glass is transparent electrically conductive and ideal for use in dye-sensitized solar cells. FTO glass was coated by screen pri...

بهجت, عباس, جعفری ندوشن, فاطمه, خوشرو, علیرضا, قشنی, مارال,

Dye-sensitized solar cell (DSSC) using natural Pomegranate juice as dye-sensitizeris fabricated and characterized. DSSCS consist of a working electrode, a redox electrolyte containing iodide and tri-iodide ions and a counter electrode. A nanocrystalline TiO2 semiconductor with a wide band-gap coated with a monolayer dye-sensitizer is used as working electrode. The effect of titanium dioxide (Ti...

Journal: :journal of nanostructures 2015
f. mohammadpour m. moradi

in order to fabricate transparent tio2 nanotube dye-sensitized solar cells, anodically growth nanotube membranes are detached from ti substrate by a re-anodization method. the membranes are transferred on fto glass by two different methods. at the first one, 100mm ti-isopropoxide is used to make tio2 nanoparticles for adhering tio2 nanotube membranes to fto and in the second one a commercial ti...

Journal: :Chemical communications 2012
Teresa Ripolles-Sanchis Bo-Cheng Guo Hui-Ping Wu Tsung-Yu Pan Hsuan-Wei Lee Sonia R Raga Francisco Fabregat-Santiago Juan Bisquert Chen-Yu Yeh Eric Wei-Guang Diau

Three alkoxy-wrapped push-pull porphyrins were designed and synthesized for dye-sensitized solar cell (DSSC) applications. Spectral, electrochemical, photovoltaic and electrochemical impedance spectroscopy properties of these porphyrin sensitizers were well investigated to provide evidence for the molecular design.

Journal: :Journal of the American Chemical Society 2014
Byunghong Lee Constantinos C Stoumpos Nanjia Zhou Feng Hao Christos Malliakas Chen-Yu Yeh Tobin J Marks Mercouri G Kanatzidis Robert P H Chang

We introduce a new class of molecular iodosalt compounds for application in next-generation solar cells. Unlike tin-based perovskite compounds CsSnI3 and CH3NH3SnI3, which have Sn in the 2+ oxidation state and must be handled in an inert atmosphere when fabricating solar cells, the Sn in the molecular iodosalt compounds is in the 4+ oxidation state, making them stable in air and moisture. As an...

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