Results 51 to 60 of about 146,601 (306)

Polymer Network Modified Perovskite for High‐Performance Pure Blue Light‐Emitting Diodes

open access: yesAdvanced Functional Materials, EarlyView.
A polymer network of poly(4‐vinylphenol) (PVPh) is introduced to improve pure blue perovskite light‐emitting diodes. PVPh effectively passivates defects, enhances film morphology, reduces lattice strain, and suppresses ion migration. These effects lead to record device performance, achieving 9.82% external quantum efficiency and stable blue emission at
Zhongkai Yu   +11 more
wiley   +1 more source

Designing Nanotechnology Commercialization Policies Based on Supporting Start-Up Companies and Challenges in Iran [PDF]

open access: yesسیاست نامه علم و فناوری, 2018
One of the main challenges of innovators in the process of developing nanotechnology is how to turn this technology into products and services that bring positive economic returns to founders and investors.
Shahriar Kazemi Azar
doaj  

Commercial space launches

open access: yesEos, Transactions American Geophysical Union, 1984
While the space shuttle is expected to be the principle Space Transportation System (STS) of the United States, the Reagan Administration is moving ahead with the President's declared space policy of encouraging private sector operation of expendable launch vehicles (ELV's).
openaire   +1 more source

Balancing Electrons to Break the Activity‐Selectivity Trade‐Off in H2O2 Electrosynthesis

open access: yesAdvanced Functional Materials, EarlyView.
Carrier‐concentration balancing in CuS is achieved by coupling cobalt dopants with cobalt vacancies, converting CuS from p‐ to n‐type to accelerate 2e− ORR while withdrawing excess carriers to optimize *OOH binding for H2O2 desorption. The catalyst reaches 8.14 mol g−1 h−1 with >84% selectivity in 1.0 M KOH and drives robust electro‐Fenton dye ...
Hangning Liu   +11 more
wiley   +1 more source

Regionally Localized Electrolyte Engineering via UV Crosslinking for Stable Ether–Carbonate Lithium Metal Batteries

open access: yesAdvanced Functional Materials, EarlyView.
This work introduces a regionally localized electrolyte (RLE) that spatially separates ether‐ and carbonate‐based functions to stabilize both Li metal and high‐voltage cathodes. An immobilized ether‐rich layer directs Li+ transport, activates LiNO3 locally, and forms a uniform LiF‐rich SEI, enabling lower overpotential, uniform deposition, and long ...
Eunbin Lim   +4 more
wiley   +1 more source

Research in space commercialization, technology transfer, and communications [PDF]

open access: yes
Research and internship programs in technology transfer, space commercialization, and information and communications policy are described. The intern's activities are reviewed.

core   +1 more source

Cross‐Layer Molecular Design for Coherent Interface Passivation in Rigid and Flexible Perovskite Solar Cells

open access: yesAdvanced Functional Materials, EarlyView.
A cross‐layer passivation strategy employing molecularly designed thiazol‐5‐ylmethanamine hydrochloride (TMACl) enables coherent defect regulation at the SnO2/perovskite interface, stabilizes both layers, promotes phase‐pure α‐FAPbI3 formation, and enhances charge extraction, delivering PCEs of 26.44% in rigid and 24.72% in flexible perovskite solar ...
Fan Shen   +16 more
wiley   +1 more source

Commercialization progress and challenges of manned high-altitude balloon space edge tourism

open access: yesHangkong gongcheng jinzhan
High-altitude balloons have been employed for space science experiments and verification for over 70 years. It is of a mature technical foundation for manned high-altitude balloon flight tests to conduct on space edge tourism.
ZHANG Shuqi   +4 more
doaj   +1 more source

Development of the urban space surrounding selected railway stations in Poland

open access: yesEnvironmental & Socio-economic Studies, 2017
At present, many railway stations, in spite of being architecturally valuable, are subject to de-capitalization and degradation, which increasingly leads to demolition including elements or even entire railway stations of historical importance. Therefore,
Dragan Weronika
doaj   +1 more source

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