Results 81 to 90 of about 2,732,428 (277)

Delicate Management of Alkaline‐Substrate‐Induced Interfacial Reactions Enables High‐Efficiency and Stable Deep‐Red CsPbI3 Perovskite Light‐Emitting Diodes

Advanced Science, EarlyView.
We develop a magnesium‐doping strategy to delicately modulate the alkaline substrate‐induced reactions, ensuring high‐quality CsPbI3 perovskite emissive layers with substantially improved stability. The resultant deep‐red LEDs demonstrate a high peak external quantum efficiency of 23.62% and an exceptional half‐lifetime stability of 376 h at 20 mA cm−2,
Zhennan Tian, Jun Wu, Haifeng Zhao, Yong Yang, Zexi Chen, Tianxiang Lv, Xuehang Chen, Lei Yang, Ding Zheng, Chunyang Yin, Junsheng Yu, Sai Bai   +11 more
wiley   +1 more source

Scalable Crackle‐Lithography for Multifunctional Enclosed Plastic Nanofluidic Devices

Advanced Science, EarlyView.
Crackle‐lithography enables scalable fabrication of enclosed plastic‐substrate‐based nanofluidic devices with interconnected nanochannels that enable molecular transport, optical interrogation, confined electroless copper deposition, and ionic memristive behavior.
Tirumala Rao Dumpala, S. Kiruthika, Siddhi Vinayak Pandey, Junyang Zhang, Solleti Goutham, Marcos Vinicius Surmani Martins, Harry Whittingham, Boya Radha, Ashok Keerthi   +8 more
wiley   +1 more source

ESTIMATION OF THE SURFACE TENSION OF Cu-2 AT. %Ge AND Cu-4 AT. %Mn SOLID SOLUTIONS, USING DATA OBTAINED BY AUGER ELECTRON SPECTROSCOPY [PDF]

Физико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2013
In the regular solution approximation with the experimental values of the composition of the surface, obtained by Auger electron spectroscopy, calculated the temperature dependence of the surface tension of (111)Cu-2 at. %Ge and (100)Cu-4 at.
I.N. Sergeev, K.Ch. Bzhihatlov
doaj  

Development of the web-based NIST X-ray Photoelectron Spectroscopy (XPS) Database

Data Science Journal, 2006
The first Web-based version of the NIST X-ray Photoelectron Spectroscopy Database (XPSDB) is described. The current database, built from a relational database management system (RDBMS), contains critically evaluated data with over 19,000 line positions ...
Angela Y Lee, Dorothy M Blakeslee, Cedric J Powell, John R Rumble, Jr   +3 more
doaj   +1 more source

A Multiscale Mechanistic Framework for Polydopamine Dyeing in Ultrablack Wool Textiles

Advanced Science, EarlyView.
Ultrablack photonic textiles are enabled through polydopamine (PDA) dyeing, which is governed by the interplay of PDA chemistry, wool surface topology and chemistry, and hierarchical fiber–yarn–fabric architecture. Fabric architecture emerges as a primary and previously underappreciated design lever for wide‐angle optical performance.
Hansadi Jayamaha, Kumar Siddharth, Kyuin Park, Mia Bressler, Larissa M. Shepherd   +4 more
wiley   +1 more source

Advances in Se Wide‐Bandgap Photovoltaics and TexSe1‐x SWIR Photodiodes

Advanced Science, EarlyView.
In this review, fundamental properties and current challenges in Se photovoltaics (PVs) for tandem and indoor PVs and TexSe1‐x alloys for short wave infrared photodiodes are discussed. A case is made for the practicality of elemental chalcogenide optoelectronics, and a pathway toward resolving the key challenges in these respective technologies is ...
Adam D. Alfieri, Deep Jariwala
wiley   +1 more source

Direct Solar Power‐Driven Durable Ammonia Electrosynthesis From Nitrate Under Fluctuating Voltage Conditions

Angewandte Chemie, EarlyView.
Isolated Sn sites on Cu(111) induce a highly asymmetric charge distribution, which promotes water dissociation, accelerates key intermediate hydrogenation, and suppresses competing hydrogen evolution. As a result, SnCu111 delivers NH3 Faradaic efficiencies above 90% over an 800 mV potential window and enables stable direct solar power‐driven NH3 ...
Xiaokang Wang, Jiankun Li, Liyun Wu, Sirui Tang, Chuangwei Liu, Jianping Yang, Qilong Wu, Xiangdong Yao, Jun Chen   +8 more
wiley   +2 more sources

Partial densities of states from x-ray absorption and Auger electron spectroscopy: Use of core-hole memory. [PDF]

Phys Rev B, 2022
Shirley EL, Weiland C, Woicik JC.
europepmc   +1 more source

Electroforming‐Free, Self‐Rectifying Selector‐Only Memory With Diffusive Cu‐Ion Dynamics for Logic‐In‐Memory Computing

Advanced Science, EarlyView.
Electroforming‐free, self‐rectifying switching with polarity‐dependent threshold modulation is realized in selector‐only memory through Cu‐ion migration in a bilayer stacked dual functional materials. Ultrafast rupturing of Cu filament enables drift‐free operation with high stability.
Jae‐Kyeong Kim, Dae‐Seong Woo, Min‐Jong Han, Hong‐Gwang Seo, Gwang‐Ho Park, In‐Taek Woo, Jea‐Gun Park, Jinsub Park   +7 more
wiley   +1 more source

Pt‐Mediated Co‐Adsorption of Hydroxyl and Nitrogen‐Heterocyclic Species Over Cu/CuO Heterostructure Enhances Coupled Azotriazole Electrosynthesis and Dual‐Electrode Hydrogen Production

Angewandte Chemie, EarlyView.
Pt@Cu/CuO heterostructures were designed for electrochemical N─N coupling of 3,5‐diamino‐1H‐1,2,4‐triazole. Mechanism investigation revealed that the Pt sites mediated co‐adsorption of substrates and hydroxyl on Cu/CuO sites. The elaborate Pt@Cu/CuO achieved an ultralow working potential of 0.832 VRHE with a high FE of 95%. A long‐term stability of 600
Jiachen Li, Hanggu Su, Yuqiang Ma, Meng Li, Ruhao Zhang, Cihang Wang, Zihang Zhao, Jun Hu, Xiaogang Mu, Xuanjun Wang, Haixia Ma, Zhengxiao Guo   +11 more
wiley   +2 more sources