Results 41 to 50 of about 22,469 (293)
Crystals, 2023 Scientists are increasingly interested in new inorganic luminescence materials that could be excited with near-infrared (NIR) radiation. These materials can be used as luminescent thermometers, bio-imaging agents, anti-counterfeiting pigments, etc.
Julija Grigorjevaite +1 more
doaj +1 more source
In-Silico Prediction of Annihilators for Triplet Fusion Upconversion via Auxiliary-Field Quantum Monte Carlo [PDF]
, 2020 The energy of the lowest-lying triplet state (T1) relative to the ground and first-excited singlet states (S0, S1) plays a critical role in optical multiexcitonic processes of organic chromophores.
Evan J., Arthur +8 more
core +2 more sources
Advanced Functional Materials, EarlyView.A triplet‐blocking layer controls triplet exciton dynamics in blue upconversion OLEDs. The layer keeps charge transfer (CT)‐generated triplet excitons inside the triplet‐triplet annihilation (TTA) host, suppresses anode‐side interfacial quenching, and increases the steady‐state triplet population.
Qing‐Jun Shui +5 more
wiley +1 more source
Ultralow-threshold upconversion infrared vision via a microsphere-mediated directional photofield
Nature CommunicationsConstructing micro-/nanostructure-modulated photofields in upconversion devices to absorb low-energy photons and emit high-energy light is revolutionary for bioimaging, lasers, and photovoltaics, with proven capability to boost upconversion luminescence (
Dong Wang +13 more
doaj +1 more source
Red-to-Blue Photon Upconversion Enabled by One Dimensional CdTe Nanorods [PDF]
, 2020 Photon upconversion via triplet-triplet annihilation creating light in the high energy regime of the visible spectrum could prove particularly useful in applications such as photocatalysis. Quantum-confined semiconductor nanocrystals have previously been
Lea, Nienhaus +3 more
core +3 more sources
A Method for the Growth of Uniform Silica Shells on Different Size and Morphology Upconversion Nanoparticles [PDF]
, 2021 Lanthanide-doped upconversion nanoparticles have emerged as attractive candidates for biomedical applications. This is due to their excitation and emission wavelengths, which lay the foundation for deeper penetration depth into biological tissue, higher ...
Maria Eleni, Kyriazi +2 more
core +2 more sources
Advanced Materials, EarlyView.Azobenzene photoswitches translate molecular‐scale E/Z photoisomerization into macroscopic material responses and device‐level photonic functions. This Review highlights how azobenzene research has evolved from molecular photochemistry to photoalignment, mass migration, photomechanics, and heat release, ultimately enabling holography, reconfigurable ...
Heeju Son +20 more
wiley +1 more source
Upconversion-Triggered Charge Separation in Polymer Semiconductors
, 2017 Upconversion is a unique optical property which is driven by a sequential photon pumping and generation of higher energy photons in a consecutive manner.
Kim, Dong-Wook +19 more
core +1 more source
Phase Engineering of Atomically Precise Nanoclusters (APNCs) of Gold and Beyond
Advanced Materials, EarlyView.Engineering the structural phase of materials is of paramount importance for both fundamental research and practical applications. In this Review, we summarize the recent progress in controlling the phases of atomically precise nanoclusters (APNCs) of gold, silver and copper, as well as bimetallic systems. The phase‐enabled material properties of APNCs
Yitong Wang +4 more
wiley +1 more source
Nature CommunicationsMaterials capable of light upconversion—transforming low-energy photons into higher-energy ones—are pivotal in advancing optoelectronics, energy solutions, and photocatalysis. However, the discovery in various materials pays little attention on few-layer
Yi-Hsun Chen +17 more
doaj +1 more source