scholarly journals Nanostructured TiO2 and PEDOT Electrodes with Photovoltaic Application

Nanomaterials ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 107
Author(s):  
Andrés Mauricio Ramírez ◽  
Linda Cattin ◽  
Jean-Christian Bernède ◽  
Fernando Raúl Díaz ◽  
Manuel Alejandro Gacitúa ◽  
...  
Keyword(s):  
Modified Electrode ◽  
Photovoltaic Cells ◽  
Morphological Characterization ◽  
Transparent Electrodes ◽  
Nanostructured Tio2 ◽  
Photovoltaic Application

In this work, nanostructured TiO2 and poly-3,4-ethylenedioxythiophene (PEDOT) layers were electrochemically prepared over transparent electrodes. Morphological characterization evidenced the presence of nanostructures as planed with 50-nm-wide TiO2 rod formations followed by 30-nm-wide PEDOT wires. Different characterizations were made to the deposits, establishing their composition and optic properties of the deposits. Finally, photovoltaic cells were prepared using this modified electrode, proving that the presence of PEDOT nanowires in the cell achieves almost double the efficiency of its bulk analogue.

scholarly journals Dielectric/Metal/Dielectric Flexible Transparent Electrodes, from Smart Window to Semi-transparent Solar Cells

2019 ◽  
Vol 7 (3) ◽  
Author(s):  
J. C. Bernède ◽  
L. Cattin
Keyword(s):  
Solar Cells ◽  
Photovoltaic Cells ◽  
Organic Photovoltaic ◽  
Multilayer Structures ◽  
Transparent Electrodes ◽  
Organic Photovoltaic Cells ◽  
Smart Window ◽  
The Stability ◽  
Cu Ions ◽  
Flexible Transparent Electrodes

The present manuscript is dedicated to In free transparent conductive andflexible heterostructure electrodes. The new electrodes correspond todielectric/metal/dielectic (D/M/D) multilayer structures deposited under vacuum. In thepresent work, after a fast review of the general properties of D/M/D electrodes using Ag asmetal, we then develop the study of D/Cu/D multilayer structures. We propose to substituteCu to Ag, because it is far cheaper. However, Cu having tendency to diffuse into manydielectrics it is difficult to obtain stable electrodes. We show that using Cu:alloys, i.e. Cu:Niand Cu:Al, as metal it is possible to decrease significantly the Cu ions diffusion and toincrease significantly the stability of the multilayer electrodes with Cu. Finally, we show thatwhen these electrodes are used as anode in organic photovoltaic cells, they can allowachieving efficiency similar to that obtained with ITO.

Fabrication of carbon nanotube hybrid films as transparent electrodes for small-molecule photovoltaic cells

RSC Advances ◽  
2016 ◽  
Vol 6 (30) ◽  
pp. 25062-25069 ◽  
Author(s):  
Ying Zhou ◽  
Zhiping Wang ◽  
Takeshi Saito ◽  
Tetsuhiko Miyadera ◽  
Masayuki Chikamatsu ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Small Molecule ◽  
Photovoltaic Cells ◽  
Transparent Electrodes ◽  
Hybrid Films

A methodology for fabricating small-molecule photovoltaic cells on carbon nanotube transparent electrodes is demonstrated.

Morphological Characterization of Sacrificial Layers of Porous Silicon for Photovoltaic Application

2009 ◽  
Vol 609 ◽  
pp. 269-273
Author(s):  
A. Ould-Abbas ◽  
M. Madani ◽  
N.E. Chabane Sari
Keyword(s):  
Porous Silicon ◽  
Low Cost ◽  
Silicon Layer ◽  
Morphological Characterization ◽  
Porous Silicon Layer ◽  
High Porosity ◽  
Porous Layers ◽  
Photovoltaic Application ◽  
Current Leads ◽  
Current Densities

We investigate the application of porous silicon (PS) in the field of the photovoltaic. In first step we realise a double porous silicon layer by electrochemical anodisation using two different current densities. The low current leads to a low porosity and during annealing, the recrystallisation of this layer allows epitaxial growth. The second current leads to a high porosity which permits the transfer onto a low cost substrate. During high temperature onto hydrogenation treatments of to passivate the structure and epitaxy in liquid phase, porous silicon is recristallized partially. In this work, a characterization by scanning electron microscopy informs us about the morphology of these porous layers.

Ascorbic acid-sensitized Au nanorods-functionalized nanostructured TiO2 transparent electrodes for photoelectrochemical genosensing

2018 ◽  
Vol 276 ◽  
pp. 389-398 ◽  
Author(s):  
Francesca Bettazzi ◽  
Serena Laschi ◽  
Diego Voccia ◽  
Cristina Gellini ◽  
Giangaetano Pietraperzia ◽  
...  
Keyword(s):  
Ascorbic Acid ◽  
Transparent Electrodes ◽  
Nanostructured Tio2 ◽  
Au Nanorods

Ultrathin and efficient flexible polymer photovoltaic cells based on stable indium-free multilayer transparent electrodes

2012 ◽  
Vol 22 (33) ◽  
pp. 17176 ◽  
Author(s):  
Xiaoyang Guo ◽  
Jie Lin ◽  
Hong Chen ◽  
Xin Zhang ◽  
Yi Fan ◽  
...  
Keyword(s):  
Photovoltaic Cells ◽  
Transparent Electrodes ◽  
Flexible Polymer

ZnSe nanoribbon/Si nanowire p–n heterojunction arrays and their photovoltaic application with graphene transparent electrodes

2012 ◽  
Vol 22 (43) ◽  
pp. 22873 ◽  
Author(s):  
Xiwei Zhang ◽  
Xiujuan Zhang ◽  
Xiaozhen Zhang ◽  
Yuping Zhang ◽  
Liang Bian ◽  
...  
Keyword(s):  
Transparent Electrodes ◽  
Si Nanowire ◽  
Photovoltaic Application

High-Performance NiO/Ag/NiO Transparent Electrodes for Flexible Organic Photovoltaic Cells

2014 ◽  
Vol 6 (18) ◽  
pp. 16403-16408 ◽  
Author(s):  
Zhichao Xue ◽  
Xingyuan Liu ◽  
Nan Zhang ◽  
Hong Chen ◽  
Xuanming Zheng ◽  
...  
Keyword(s):  
High Performance ◽  
Photovoltaic Cells ◽  
Organic Photovoltaic ◽  
Transparent Electrodes ◽  
Organic Photovoltaic Cells

scholarly journals ZnO@TiO2 Core Shell Nanorod Arrays with Tailored Structural, Electrical, and Optical Properties for Photovoltaic Application

Molecules ◽  
2019 ◽  
Vol 24 (21) ◽  
pp. 3965 ◽  
Author(s):  
Ivana Panžić ◽  
Krunoslav Juraić ◽  
Nikša Krstulović ◽  
Ana Šantić ◽  
Domagoj Belić ◽  
...  
Keyword(s):  
Optical Properties ◽  
Zno Nanorods ◽  
Chemical Deposition ◽  
Electrical And Optical Properties ◽  
Preparation Methods ◽  
Nanostructured Tio2 ◽  
Photovoltaic Application ◽  
Visible Part ◽  
Structure Morphology ◽  
Tio2 Shell

ZnO has prominent electron transport and optical properties, beneficial for photovoltaic application, but its surface is prone to the formation of defects. To overcome this problem, we deposited nanostructured TiO2 thin film on ZnO nanorods to form a stable shell. ZnO nanorods synthesized by wet-chemistry are single crystals. Three different procedures for deposition of TiO2 were applied. The influence of preparation methods and parameters on the structure, morphology, electrical and optical properties were studied. Nanostructured TiO2 shells show different morphologies dependent on deposition methods: (1) separated nanoparticles (by pulsed laser deposition (PLD) in Ar), (2) a layer with nonhomogeneous thickness (by PLD in vacuum or DC reactive magnetron sputtering), and (3) a homogenous thin layer along the nanorods (by chemical deposition). Based on the structural study, we chose the preparation parameters to obtain an anatase structure of the TiO2 shell. Impedance spectroscopy shows pure electron conductivity that was considerably better in all the ZnO@TiO2 than in bare ZnO nanorods or TiO2 layers. The best conductivity among the studied samples and the lowest activation energy was observed for the sample with a chemically deposited TiO2 shell. Higher transparency in the visible part of spectrum was achieved for the sample with a homogenous TiO2 layer along the nanorods, then in the samples with a layer of varying thickness.

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