scholarly journals Photoelectrochemical solar cells using[(dcbH2)2RuLL],L,L′= substituted pyridines, as nanocrystallineTiO2sensitizers

2001 ◽  
Vol 3 (3) ◽  
pp. 131-151 ◽  
Author(s):  
Christian Graziani Garcia ◽  
Neyde Yukie Murakami Iha

The development of thin-layer transparent solar cells based on dye sensitization of nanocrystallinen-typeTiO2undertaken at the Laboratory of Inorganic Photochemistry and Energy Conversion at the Chemistry Institute of Universidade de São Paulo is presented. Compounds of the formulacis-[(dcbH2)2RuLL],L,L′= substituted pyridines, as nanocrystallineTiO2,dcbH2=4,4′−(CO2H)2−2,2′-bipyridine andL,L′= substituted pyridines, have been successfully employed as molecular sensitizers in photoelectrochemical solar cells based on dye-sensitization ofn-TiO2. This regenerative solar cell consists of a TCO glass with a dye-sensitizedTiO2semiconductor film as a photoanode,I2/LiIsolution in acetonitrile as a redox mediator and a transparent Pt coated TCO glass as a counter electrode. Efficient conversion of visible light into electricity was achieved with IPCE (Incident Photon-to-Current Conversion Efficiency) as high as 50% between 400 and 550 nm.

Author(s):  
Nick Vlachopoulos ◽  
Anders Hagfeldt ◽  
Iacopo Benesperi ◽  
Marina Freitag ◽  
Ghufran Hashmi ◽  
...  

Dye solar cell based on Cu coordination complex as redox mediator and carbon counter electrode.


RSC Advances ◽  
2015 ◽  
Vol 5 (121) ◽  
pp. 100159-100168 ◽  
Author(s):  
Gentian Yue ◽  
Guang Yang ◽  
Fumin Li ◽  
Jihuai Wu

A much higher photovoltaic performance of a dye-sensitized solar cell with a (P-A) Gr/NiCo2O4 counter electrode is achieved than that of a Pt configuration device.


2015 ◽  
Vol 3 (45) ◽  
pp. 23028-23034 ◽  
Author(s):  
Ranran Zhou ◽  
Wenxi Guo ◽  
Ruomeng Yu ◽  
Caofeng Pan

We present a highly flexible dye-sensitized solar cell composed of TiO2 nanotube arrays (TNARs) as the photoanode and a transparent Pt network electrode as the counter electrode (CE).


2021 ◽  
Vol 5 (11) ◽  
pp. 288
Author(s):  
José A. Castillo-Robles ◽  
Enrique Rocha-Rangel ◽  
José A. Ramírez-de-León ◽  
Frida C. Caballero-Rico ◽  
Eddie N. Armendáriz-Mireles

Human beings are attempting to take advantage of renewable natural resources by using solar cells. These devices take the sun’s radiation and convert it into electrical energy. The issue with traditional silicon-based solar cells is their manufacturing costs and environmental problems. For this reason, alternatives have been developed within the solar cell field. One of these alternatives is the dye-sensitized solar cell (DSSC), also known as Grätzel solar cells. DSSCs are a type of solar cell that mimics photosynthesis. They have a photoanode, which is formed by a semiconductor film sensitized with a dye. Some of their advantages include low-cost manufacturing, eco-friendly materials use, and suitability for most environments. This review discusses four important aspects, with two related to the dye, which can be natural or synthetic. Herein, only natural dyes and their extraction methods were selected. On the other hand, this paper discusses the nanostructures used for DSSCs, the TiO2 nanostructure being the most reported; it recently reached an efficiency level of 10.3%. Finally, a review on the novelties in DSSCs technology is presented, where it is observed that the use of Catrin protein (cow brain) shows 1.45% of efficiency, which is significantly lower if compared to Ag nanoparticles doped with graphene that report 9.9% efficiency.


Author(s):  
Manik Chandra Sil ◽  
Hong-Da Chang ◽  
Jhih-Jhu Jhan ◽  
Chih-Ming Chen

A better replacement of electrocatalytic platinum on counter electrode of dye-sensitized solar cell (DSSC) has received increasing attention to make a balance in between efficient charge transfer and cost effectiveness....


2017 ◽  
Vol 5 (27) ◽  
pp. 14079-14091 ◽  
Author(s):  
Chun-Ting Li ◽  
Chuan-Pei Lee ◽  
I-Ting Chiu ◽  
R. Vittal ◽  
Yi-June Huang ◽  
...  

Hierarchical, flexible, and platinum-free TiO1.1Se0.9/carbon cloth counter electrode efficiently rendered its dye-sensitized solar cell 9.47% and 10.32% efficiencies in iodide-based and cobalt-based electrolytes, respectively.


Materials ◽  
2021 ◽  
Vol 14 (13) ◽  
pp. 3743
Author(s):  
Marek Szindler ◽  
Magdalena Szindler ◽  
Aleksandra Drygała ◽  
Krzysztof Lukaszkowicz ◽  
Paulina Kaim ◽  
...  

One of the important research directions in the field of photovoltaics is integration with construction. The integration of solar cell systems with a building can reduce installation costs and help optimize the used space. Among the few literature reports on photovoltaic roof tiles, solutions with silicon and thin film solar cells dominate. An interesting solution may be the application of dye-sensitized solar cells. In addition to their interesting properties, they also have aesthetic value. In the classic arrangement, they are constructed using glass with a transparent conductive layer (TCL). This article describes replacing a classic glass counter electrode with an electrode based on a ceramic tile and nickel foil. First, a continuous and homogeneous fluorine-doped tin oxide (FTO) thin film was developed so that the above-mentioned substrate could be applied. The atomization method was used for this purpose. Then, nanocolloidal platinum paste was deposited as a catalytic material using the screen printing method. The electrical parameters of the manufactured DSSCs with and without a counter electrode tile were characterized by measuring their current–voltage characteristics under standard AM 1.5 radiation. A dye-sensitized solar cell integrated with ceramic tiles and nickel foil was produced and displayed an efficiency of over 4%. This solution makes it possible to expand their construction applications. The advantage of this solution is full integration with construction, while simultaneously generating electricity. A dye-sensitized solar cell was built layer-by-layer on a ceramic tile and nickel foil.


RSC Advances ◽  
2018 ◽  
Vol 8 (33) ◽  
pp. 18427-18433 ◽  
Author(s):  
Pin Ma ◽  
Wenli Lu ◽  
Xiaoying Yan ◽  
Weidan Li ◽  
Li Li ◽  
...  

Tri-doped porous carbon derived from waste-biomass was developed for a highly efficient counter electrode in dye-sensitized solar cell with an efficiency of 7.83%.


1999 ◽  
Vol 581 ◽  
Author(s):  
T.K. Gupta ◽  
L.J. Cirignano ◽  
K.S. Shah ◽  
L.P. Moy ◽  
D.J. Kelly ◽  
...  

ABSTRACTThe fabrication and testing of screen printed dye-sensitized large solar cell (15 cm × 15 cm) based on nanocrystalline TiO2 is described. It is the largest photo-electrochemical (PEC) cell that is based on the dye sensitization of thin (8-18 μm) films of TiO2 nanoparticles in contact with a non-aqueous liquid electrolyte. The cell has the potential to be a low cost, commercial, environmentally friendly, photovoltaic option. Surface as well as electrical characterization, of the nanostructured PEC cells have been performed. The efficiency of these large commercial cells are compared to the laboratory-made small PEC cells. Key words: Photoelectrochemical, solar cells, nanocrystalline, dye-sensitized


2013 ◽  
Vol 446-447 ◽  
pp. 823-826 ◽  
Author(s):  
Nair Gomesh ◽  
Mohammad Shafawi ◽  
Muhammad Irwanto ◽  
Mohd Irwan Yusoff ◽  
Muhammad Fitra ◽  
...  

This project is to investigate the counter electrode material from two different carbon sources to fabricate dye sensitized solar cell (DSSC). The carbon sources are extracted from battery and pencil lead. The method to prepare the DSSC is through the conventional Dr.Blading method. The same method is also used for the counter electrode which uses carbon from recycle batteries, the carbon from pencil lead are scribbled onto the ITO glass to get a uniform coating. Both thickness of the counter electrode vary accordingly. The solar cells are then placed under outdoor solar irradiation and the output is taken every 10 minutes. Based on observation, the solar cells which have the carbon from batteries shows higher cell efficiency which is 8.2 % with lower FF of 0.78, compared to by using the pencil lead, the cell efficiency is only 7.23% but with a higher FF of 0.93.


Sign in / Sign up

Export Citation Format

Share Document