Results 131 to 140 of about 1,840 (258)

Highly efficient blue crystalline organic light‐emitting diodes enabled by a hot exciton sensitizer PyPO

open access: yesFlexMat, EarlyView.
Two different sensitization structures (hot exciton sensitizer type and exciton nanoaggregate type) were integrated into crystalline host matrix. The resulting crystalline organic light‐emitting diodes exhibit low Joule heat loss ratio and high photon output.
Hao Hu   +4 more
wiley   +1 more source

Regional variability in the Acheulian to Middle Stone Age transition in southern Africa. [PDF]

open access: yesSci Rep
Blackwood AF   +13 more
europepmc   +1 more source

Chiral perovskites for next‐generation chiral optoelectronics and spintronics

open access: yesFlexMat, EarlyView.
Benefiting from structural inversion symmetry breaking and strong spin‐orbit coupling, chiral perovskites possess intriguing chiral optical and spin properties. We overview their advances and core applications in perovskite solar cells, circularly polarized light detectors and spin circularly polarized‐light‐emitting diodes, offering great potential ...
Mengyao Zhang   +13 more
wiley   +1 more source

Borophene‐based sensing platforms: Pioneering ultrasensitive detection

open access: yesFlexMat, EarlyView.
Schematic Diagram of Performance Optimization Strategies and Sensing Application Characteristics of Two‐Dimensional Boron‐Based Materials in Novel Sensors. Abstract Borophene is an emerging two‐dimensional (2D) material. Since significant breakthroughs were achieved in the experimental synthesis of borophene, the exploration and development of ...
Chi Yuan, Yanpeng Ji, Yi Liu, Guoan Tai
wiley   +1 more source

Holocene Nile dynamics shaped the physical and cultural landscape of ancient Nubia. [PDF]

open access: yesProc Natl Acad Sci U S A
Peeters J   +8 more
europepmc   +1 more source

Advancing super‐resolution stimulated emission depletion microscopy with luminescent lanthanide nanocrystals

open access: yesFlexMat, EarlyView.
The state‐of‐the‐art research advances and its cutting‐edge application in super resolution stimulated emission depletion technology based on luminescent lanthanide nanocrystals. Abstract Stimulated emission depletion (STED) microscopy overcomes the diffraction limit to reveal subcellular structures beyond the reach of conventional optical methods ...
Yaqi Chen   +4 more
wiley   +1 more source

Recent advances and prospects for high‐efficiency blue hot exciton organic light‐emitting diodes

open access: yesFlexMat, EarlyView.
Blue organic light‐emitting diodes (OLEDs) face great challenges in achieving the balance between color purity, device efficiency, and stability. Hot exciton materials offer a solution by rapidly converting non‐emissive triplet excitons into singlet ones through a high‐lying reverse intersystem crossing process.
Xiaoen Shi   +3 more
wiley   +1 more source

A Middle Stone Age occupation identified at Baden-Baden in the grasslands of the Free State, South Africa. [PDF]

open access: yesSci Rep
Richard M   +9 more
europepmc   +1 more source

Apatite in Carbonatite Preserving Primary Magmatic, Post‐Magmatic Overgrowth, and Post India‐Asia Collision‐Related Hydrothermal Alteration: Evidenced From U–Pb Isotope and Trace Element Geochemistry

open access: yesGeological Journal, EarlyView.
U–Pb isotope and trace element geochemistry of apatite from carbonatites of Peshawar Plain Alkaline Igneous Province, western Himalaya shows Permo‐Carboniferous magmatism, an additional magmatic pulse during Cretaceous, and post‐magmatic hydrothermal/metasomatism during Oligocene. ABSTRACT U–Pb isotope and trace element geochemistry of apatite combined
Mehboob ur Rashid   +9 more
wiley   +1 more source

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