Results 21 to 30 of about 9,090 (227)

Scaling of flat band potential and dielectric constant as a function of Ta concentration in Ta-TiO2 epitaxial films

AIP Advances, 2011
Electrochemical impedance spectroscopy measurements of pulsed laser deposited single crystal anatase TiO2 thin films with various concentrations of Ta substituting for Ti were carried out.
Y. L. Zhao, A. Roy Barman, S. Dhar, A. Annadi, M. Motapothula, Jinghao Wang, Haibin Su, M. Breese, T. Venkatesan, Q. Wang   +9 more
doaj   +1 more source

Effect of in situ Ion NitrideTreatment on the Corrosion Behavior of Titanium

International Journal of Electrochemical Science, 2018
Ion nitriding was applied to titanium grade Ⅱ(TA2) to observe the impact it had on corrosion behavior of Titanium structures. X-ray diffraction, potentiodynamic polarization, electrochemical impedance spectroscopy and Mott-Schottky were used to study the
Zhenwei Yan, Xianjie Yuan, Zhaojun Tan, Mingqi Tang, Zaiqiang Feng   +4 more
doaj   +1 more source

Accuracy of defect distributions measured by bias dependent admittance spectroscopy on thin film solar cells [PDF]

, 2011
Thin film solar cells have achieved efficiencies up to 20%. Despite these excellent results, the understanding of the underlying mechanisms and the influence of defects on their performance is still incomplete. In thin film solar cells often defect level
Burgelman, Marc, Decock, Koen, Khelifi, Samira   +2 more
core   +2 more sources

Propiedades semiconductoras del óxido de Ti sobre sustratos vidrio/Ti y chapa de Ti en contacto con una solución de 0,5 M de HClO4

Tecnología y Ciencia, 2022
El estudio de la interfase semiconductor/electrolito tiene aplicaciones en la producción de celdas solares fotoelectroquímicas. Las propiedades semiconductoras de un semiconductor de tipo n pueden ser evaluadas mediante el modelo de Mott-Schottky cuando ...
Santiago Décima, Eliseo Narciso Díaz, Ana Silvina Fuentes, Francisco Ángel Filippin   +3 more
doaj   +1 more source

Checking graphite and stainless anodes with an experimental model of marine microbial fuel cell [PDF]

, 2008
A procedure was proposed to mimic marine microbial fuel cell (MFC) in liquid phase. A graphite anode and a stainless steel cathode which have been proven, separately, to be efficient in MFC were investigated.
Basséguy, Régine, Bergel, Alain, Dumas, Claire, Etcheverry, Luc, Féron, Damien, Mollica, Alfonso   +5 more
core   +4 more sources

Space–charge theory applied to the grain boundary impedance of proton conducting BaZr0.9Y0.1O3−δ. [PDF]

, 2010
The specific grain interior and grain boundary conductivities, obtained from impedance spectroscopy and the brick layer model, are reported for BaZr0.9Y0.1O3−δ as a function of pO2 and temperature. pO2-dependencies were indicative of dominating ionic and
Estournès, Claude, Fjeld, Harald, Haugsrud, Reidar, Inge Dahl, Paul, Kjølseth, Christian, Norby, Truls, Prytz, Øystein   +6 more
core   +1 more source

Mott–Schottky and Morphologic Analysis of Poly(Pyrrole-N-Propionic Acid) in various electrolyte systems

International Journal of Electrochemical Science, 2015
In this study, pyrrole-N-propionic acid (PPA) was electrochemically polymerized on a glassy carbon electrode (GCE) in various electrolytes (NaClO4, Et4NBF4, Bu4NClO4,and Bu4NPF6) using cyclic voltammetry (CV). The structure and morphology of the modified
Tolga Karazehir, Murat Ates, A. Sezai Sarac   +2 more
doaj   +1 more source

Capacitance Electrochemical pH Sensor Based on Different Hafnium Dioxide (HfO₂) Thicknesses

Chemosensors, 2021
Over the past years, to achieve better sensing performance, hafnium dioxide (HfO2) has been studied as an ion-sensitive layer. In this work, thin layers of hafnium dioxide (HfO2) were used as pH-sensitive membranes and were deposited by atomic layer ...
Zina Fredj, Abdoullatif Baraket, Mounir Ben Ali, Nadia Zine, Miguel Zabala, Joan Bausells, Abdelhamid Elaissari, Nsikak U. Benson, Nicole Jaffrezic-Renault, Abdelhamid Errachid   +9 more
doaj   +1 more source

Infrared Solution‐Processed Quantum Dot Solar Cells Reaching External Quantum Efficiency of 80% at 1.35 µm and Jsc in Excess of 34 mA cm−2 [PDF]

, 2018
Developing low‐cost photovoltaic absorbers that can harvest the short‐wave infrared (SWIR) part of the solar spectrum, which remains unharnessed by current Si‐based and perovskite photovoltaic technologies, is a prerequisite for making high‐efficiency ...
Azmi, Brown, Brown, Burkhard, Bush, Cao, Carey, Centurioni, Choi, Choi, Choi, Chuang, Chuang, Dirin, Eperon, Gao, Guchhait, Hou, Ip, Ip, Ip, Jasieniak, Kiani, Kirchartz, Lai, Lan, Lan, Lee, Liu, Liu, Miller, Pettersson, Pradhan, Shockley, Speirs, Stavrinadis, Stavrinadis, Tan, Todorov, Vos, Wang, Zherebetskyy   +41 more
core   +2 more sources

Electrochemical Behavior Analyses of Anodic Oxide Film Obtained on TA2 Pure Titanium in Sulfuric Acid Electrolyte

Chemical Engineering Transactions, 2017
Anodic oxide films on pure titanium surface were prepared with potentiostatic method in the 10% sulfuric acid electrolyte. The chrono-amperometric curve, potentiodynamic polarization curve, electrochemical impedance spectroscopy and Mott-Schottky curve ...
Guangming Yang, Dalai Ma, Lu Liu, Ju Rong, Xiaohua Yu   +4 more
doaj   +1 more source