Results 51 to 60 of about 9,158 (287)

Fabrication and characterization of a p-type Cu3Nb2O8 photocathode toward photoelectrochemical reduction of carbon dioxide [PDF]

, 2015
We report a new p-type Cu3Nb2O8 as a thin film photocathode, which was fabricated through spin-coating by a metal organic decomposition method. The p-type Cu3Nb2O8 photocathode exhibited a strong cathodic photocurrent, and the incident photon-to-current ...
Kamimura Sunao, Murakami Naoya, Ohno Teruhisa, Tsubota Toshiki   +3 more
core   +2 more sources

Gradient dopant profiling and spectral utilization of monolithic thin-film silicon photoelectrochemical tandem devices for solar water splitting [PDF]

, 2015
A cost-effective and earth-abundant photocathode based on hydrogenated amorphous silicon carbide (a-SiC:H) is demonstrated to split water into hydrogen and oxygen using solar energy. A monolithic a-SiC:H photoelectrochemical (PEC) cathode integrated with
Abdi, Fatwa F., Buijs, Thom W. F., Dam, Bernard, Digdaya, Ibadillah A., Han, Lihao, Huang, Zhuangqun, Liu, Rui, Smets, Arno H. M., Smith, Wilson A., Zeman, Miro   +9 more
core   +2 more sources

In Situ Study of Resistive Switching in a Nitride‐Based Memristive Device

Advanced Functional Materials, EarlyView.
In situ TEM biasing experiment demonstrates the volatile I‐V characteristic of MIM lamella device. In situ STEM‐EELS Ti L2/L3 ratio maps provide direct evidence of the oxygen vacancies migrations under positive/negative electrical bias, which is critical for revealing the RS mechanism for the MIM lamella device.
Di Zhang, Rohan Dhall, Matthew M. Schneider, Cun Li, Chengyu Song, Sundar Kunwar, Hongyi Dou, Natanii R. Yazzie, Henry Tran, Daniel Appuing, Jim Ciston, Nicholas G. Cucciniello, Pinku Roy, Michael T. Pettes, John Watt, Winson Kuo, Haiyan Wang, Ye Cao, Rodney J. McCabe, Aiping Chen   +19 more
wiley   +1 more source

Effect of secondary passivation on corrosion behavior and semiconducting properties of passive film of 2205 duplex stainless steel

Journal of Materials Research and Technology, 2021
The effects of secondary passivation on the electrochemical behavior of passive films on the surface of 2205 duplex stainless steel were studied by potentiodynamic polarization, EIS and Mott–Schottky analysis.
Guangming Yang, Yafei Du, Siyao Chen, Yongsheng Ren, Yulong Ma   +4 more
doaj   +1 more source

Stable Ta2O5 Overlayers on Hematite for Enhanced Photoelectrochemical Water Splitting Efficiencies [PDF]

, 2018
Hematite (α‐Fe2O3) is one of the most promising photoanodes for water oxidation, however the efficiencies of current hematite materials remain low.
Bard, Barroso, Barroso, Cherepy, Chun, Cummings, Dare-Edwards, Dotan, Forster, Hisatomi, Jang, Kim, Klahr, Kobayashi, Le Formal, Le Formal, Li, Ling, Ling, Liu, Mavrič, Moir, Morin, Pesci, Rico, Sapra, Shang, Sivula, Sivula, Steier, Steier, Tamirat, Wang, Xi, Yang, Zandi, Zandi   +36 more
core   +1 more source

Efficient NiOx Hole Transport Layers Enabled by Multifunctional MXenes for High‐Performance Tin‐Lead Perovskite Solar Cells

Advanced Functional Materials, EarlyView.
An efficient NiOx HTL is successfully prepared by introducing MXene as an additive without further surface modification to fabricate high‐performance FASn0.5Pb0.5I3 perovskite solar cells. The introduction of MXene contributes to improved conductivity of NiOx, better aligned at NiOx/perovskite interfaces, and enhanced quality of perovskite films ...
Lijun Chen, Guanqi Tang, Yanghou Wang, Xiaolong Cao, Junjun Jin, Jie Tang, Liyang Yu, Zheng Zhou, Peng You, Hanlin Hu, Weiqing Yang, Qidong Tai, Feng Yan   +12 more
wiley   +1 more source

Growth, Characterization, and Electrochemical Properties of Doped n-Type KTaO_3 Photoanodes [PDF]

, 2009
The effects of compositionally induced changes on the semiconducting properties, optical response, chemical stability, and overall performance of KTaO_3 photoanodes in photoelectrochemical (PEC) cells have been investigated. Single crystals of n-type Ca-
Boatner, L. A., Brown, G. M., Jellison, G. E. Jr., Katz, J. E., Lewis, N. S., Paulauskas, I. E.   +5 more
core  

Quantification of Ion Migration in CH3NH3PbI3 Perovskite Solar Cells by Transient Capacitance Measurements

, 2019
Solar cells based on organic-inorganic metal halide perovskites show efficiencies close to highly-optimized silicon solar cells. However, ion migration in the perovskite films leads to device degradation and impedes large scale commercial applications ...
Ehrler, Bruno, Fakharuddin, Azhar, Futscher, Moritz H., Haider, Muhammad Irfan, Lee, Ju Min, McGovern, Lucie, Muscarella, Loreta A., Schmidt-Mende, Lukas, Wang, Tianyi   +8 more
core   +1 more source

Reduction of Peroxodisulfate at Porous and Crystalline Silicon Electrodes: An Anomaly\ud [PDF]

, 1996
Electroluminescence from n-type porous silicon can be generated in solution by reduction of peroxodisulfate. It has been assumed that the SO4•- radical ion, formed in the first reduction step, injects a hole into the valence band of the porous ...
Kelly, J.J., Kooij, E.S., Noordhoek, S.M.   +2 more
core   +2 more sources

Covalent Organic Frameworks for Photocatalytic CO2 Reduction: Metal Integration Principles, Strategies and Functions

Advanced Functional Materials, EarlyView.
Covalent organic frameworks (COFs) with metals have been recognized as versatile platforms for photocatalytic CO2 reduction (CO2PRR). Herein, an overview of metal integration strategies for COFs is systematically summarized. Regulatory mechanisms and structure–activity relationships between metal integration and COF‐based CO2PRR are emphasized.
Jie He, Minxian Zhang, Jinqiang Zhang, Hongqi Sun, Shaobin Wang, Xiaoguang Duan   +5 more
wiley   +1 more source