scholarly journals Semiconductor-Ionic Nanocomposite La0.1Sr0.9MnO3−δ-Ce0.8Sm0.2O2−δ Functional Layer for High Performance Low Temperature SOFC

Materials ◽  
2018 ◽  
Vol 11 (9) ◽  
pp. 1549 ◽  
Author(s):  
Zhaoqing Wang ◽  
Xunying Wang ◽  
Zhaoyun Xu ◽  
Hui Deng ◽  
Wenjing Dong ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Low Temperature ◽  
High Performance ◽  
Ionic Conduction ◽  
Electrochemical Impedance ◽  
Short Circuit ◽  
Functional Layer ◽  
Rectification Effect ◽  
Electrochemical Impedance Spectroscopy Data ◽  
Low Temperature Sofc

A novel composite was synthesized by mixing La0.1Sr0.9MnO3−δ (LSM) with Ce0.8Sm0.2O2−δ (SDC) for the functional layer of low temperature solid oxide fuel cell (LT-SOFC). Though LSM, a highly electronic conducting semiconductor, was used in the functional layer, the fuel cell device could reach OCVs higher than 1.0 V without short-circuit problem. A typical diode or rectification effect was observed when an external electric force was supplied on the device under fuel cell atmosphere, which indicated the existence of a junction that prevented the device from short-circuit problem. The optimum ratio of LSM:SDC = 1:2 was found for the LT-SOFC to reach the highest power density of 742 mW·cm−2 under 550 °C The electrochemical impedance spectroscopy data highlighted that introducing LSM into SDC electrolyte layer not only decreased charge-transfer resistances from 0.66 Ω·cm2 for SDC to 0.47–0.49 Ω·cm2 for LSM-SDC composite, but also decreased the activation energy of ionic conduction from 0.55 to 0.20 eV.

scholarly journals Antireflection Improvement and Junction Quality Optimization of Si/PEDOT:PSS Solar Cell with the Introduction of Dopamine@Graphene

Energies ◽  
2020 ◽  
Vol 13 (22) ◽  
pp. 5986
Author(s):  
Tao Chen ◽  
Hao Guo ◽  
Leiming Yu ◽  
Tao Sun ◽  
Anran Chen ◽  
...  
Keyword(s):  
Solar Cell ◽  
Conversion Efficiency ◽  
High Performance ◽  
Electrochemical Impedance ◽  
Short Circuit ◽  
Short Circuit Current ◽  
Electrochemical Impedance Spectra ◽  
Solar Cell Performance ◽  
Photovoltaic Conversion ◽  
Photovoltaic Conversion Efficiency

Si/PEDOT: PSS solar cell is an optional photovoltaic device owing to its promising high photovoltaic conversion efficiency (PCE) and economic manufacture process. In this work, dopamine@graphene was firstly introduced between the silicon substrate and PEDOT:PSS film for Si/PEDOT: PSS solar cell. The dopamine@graphene was proved to be effective in improving the PCE, and the influence of mechanical properties of dopamine@graphene on solar cell performance was revealed. When dopamine@graphene was incorporated into the cell preparation, the antireflection ability of the cell was enhanced within the wavelength range of 300~450 and 650~1100 nm. The enhanced antireflection ability would benefit amount of the photon-generated carriers. The electrochemical impedance spectra test revealed that the introduction of dopamine@graphene could facilitate the separation of carriers and improve the junction quality. Thus, the short-circuit current density and fill factor were both promoted, which led to the improved PCE. Meanwhile, the influence of graphene concentration on device performances was also investigated. The photovoltaic conversion efficiency would be promoted from 11.06% to 13.15% when dopamine@graphene solution with concentration 1.5 mg/mL was applied. The achievements of this study showed that the dopamine@graphene composites could be an useful materials for high-performance Si/PEDOT:PSS solar cells.

Fabrication of high performance low temperature solid oxide fuel cell based on La0.10Sr0.90Co0.20Zn0.80O5-δ cathode

2019 ◽  
Vol 238 ◽  
pp. 179-182 ◽  
Author(s):  
Ghazanfar Abbas ◽  
Muhammad Ashfaq Ahmad ◽  
Rizwan Raza ◽  
M. Hammad Aziz ◽  
M. Ajmal Khan ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Low Temperature ◽  
Solid Oxide Fuel Cell ◽  
High Performance ◽  
Solid Oxide ◽  
Oxide Fuel

High Performance Dye-Sensitized Solar Cells Based on Vacuum-Assisted Thermal Deposition Pt Counter Electrodes

2014 ◽  
Vol 602-603 ◽  
pp. 866-870
Author(s):  
Yan Xiang Wang ◽  
He Dong Jiang ◽  
Jian Sun
Keyword(s):  
High Performance ◽  
High Efficiency ◽  
Electrochemical Impedance ◽  
Short Circuit ◽  
Dye Sensitized Solar Cells ◽  
Open Circuit ◽  
Counter Electrodes ◽  
Thermal Deposition ◽  
Dye Sensitized ◽  
Loading Amount

In this work, the vacuum-assisted thermal deposition platinum (Pt) film was prepared and used as a counter electrode (CE) in dye sensitized solar cell (DSC). The films were characterized by scanning electron microscopy (SEM). Electrochemical catalytic activities of the films were also characterized by cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS). The effects of the Pt loading amount on the fluorine-doped tin oxide (FTO) glass and titration time on the performance of the DSC were investigated. The optimal performance of the DSC was obtained when using the three-time titration with 1.69 mg/cm2 Pt loading amount vacuum-assisted thermal deposit CE. The DSC showed a high efficiency of 7.20%. The short-circuit current density (Jsc), open circuit voltage (Voc) and fill factor (FF) were 13.79 mA·cm-2, 0.73 V and 0.71, respectively.

High performance solid-oxide fuel cell: Opening windows to low temperature application

2016 ◽  
Vol 41 (13) ◽  
pp. 5824-5832 ◽  
Author(s):  
Ye Zhang-Steenwinkel ◽  
Qingchun Yu ◽  
Frans P.F. van Berkel ◽  
Marc M.A. van Tuel ◽  
Bert Rietveld ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Low Temperature ◽  
Solid Oxide Fuel Cell ◽  
High Performance ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Temperature Application ◽  
Cell Opening

A homogeneous grain-controlled ScSZ functional layer for high performance low-temperature solid oxide fuel cells

2018 ◽  
Vol 6 (34) ◽  
pp. 16506-16514 ◽  
Author(s):  
Soonwook Hong ◽  
Jonghyun Son ◽  
Yonghyun Lim ◽  
Hwichul Yang ◽  
Fritz B. Prinz ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Low Temperature ◽  
Solid Oxide Fuel Cells ◽  
High Performance ◽  
Solid Oxide ◽  
Yttria Stabilized Zirconia ◽  
Oxide Fuel ◽  
Stabilized Zirconia ◽  
Functional Layer ◽  
Cell Systems

Scandia-stabilized zirconia (ScSZ) is employed as a cathodic functional layer onto yttria-stabilized zirconia based fuel cell systems for low-temperature solid oxide fuel cells.

High performance praseodymium nickelate oxide cathode for low temperature solid oxide fuel cell

2011 ◽  
Vol 196 (4) ◽  
pp. 1872-1879 ◽  
Author(s):  
Claire Ferchaud ◽  
Jean-Claude Grenier ◽  
Ye Zhang-Steenwinkel ◽  
Marc M.A. van Tuel ◽  
Frans P.F. van Berkel ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Low Temperature ◽  
Solid Oxide Fuel Cell ◽  
High Performance ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Oxide Cathode ◽  
Praseodymium Nickelate

scholarly journals A High Performance Low Temperature Direct Carbon Fuel Cell

2017 ◽  
Vol 78 (1) ◽  
pp. 2519-2526 ◽  
Author(s):  
Wei Wu ◽  
Dong Ding ◽  
Maohong Fan ◽  
Ting He
Keyword(s):  
Fuel Cell ◽  
Low Temperature ◽  
High Performance ◽  
Direct Carbon Fuel Cell
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