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energy storage phosphorescence
Long-lifetime phosphorescence in diamond for data storage
Herein, the synthetic diamonds with ultralong phosphorescence lifetime have been investigated. The phosphorescence emission bands centered at 470 nm and 580 nm have a long lifetime of 31 s and 93 s, respectively, outperforming other reported diamond materials. Detailed spectroscopy characterizations and density functional theory
14.7: Fluorescence and Phosphorescence
Contributors and Attributions. Chris P Schaller, Ph.D., (College of Saint Benedict / Saint John''s University) 14.7: Fluorescence and Phosphorescence is shared under a license and was authored, remixed, and/or curated by LibreTexts. Fluorescence and phosphorescence are photoluminescence processes in which material emits photons
X-ray radiation excited ultralong (>20,000 seconds) intrinsic phosphorescence
Phosphorescence emission from extrinsic rare-earth element and organic component remains a challenge. Here, the authors demonstrate an ultraviolet ultralong intrinsic phosphorescence (UIP, >
Phosphorescence
Phosphorescence is a specific type of photoluminescence related to fluorescence. Unlike fluorescence, a phosphorescent material does not immediately re-emit the radiation it absorbs. The slower time scales of the re-emission are associated with "forbidden" energy state transitions in quantum mechanics. As these transitions occur less often in
Host-guest doping induced excited state energy transfer for efficient room temperature phosphorescence
For GLY-NIO doped system (Fig. 5. d), the energy of the singlet and third excited states of the host is obviously higher than that of the guest, so the FRET and DET are carried out, and finally the fluorescence and
Aggregation-regulated room-temperature phosphorescence
The separated molecularly-dispersed CBtCOONa exhibits blue phosphorescence while the aggregated CBtCOONa emits green such as bioimaging 5, optical recording 6, information storage 7
Twofold rigidity activates ultralong organic high-temperature phosphorescence
Obtaining high-temperature phosphorescence in organic materials can potentially lead to broader applications, but can be challenging to achieve. Here, the authors report the use of rigid molecules
Phosphorescence: Definition, principle, and applications
Phosphorescence is a radiative transition process in which light is emitted from T1 (excited triplet state) to So (ground singlet state) with a change in spin multiplicity. When certain substances are exposed to light, they emit light for a period of time after the light source is cut off. This phenomenon is known as phosphorescence and such
Supramolecular assembly activated single-molecule phosphorescence resonance energy
Phosphorescence resonance energy transfer systems have potential in light-harvesting and bioimaging, but host-guest systems are rarely explored. Here, the authors report the development of a
Nanocomposite phase change materials for high-performance thermal energy storage
Phase change materials (PCM) with high energy storage capacity (i.e., high energy density) are highly demanded as a key material for TES. Analogous to
Nylons with Highly-Bright and Ultralong Organic Room-Temperature Phosphorescence
a Chemical structures of luminophores 2, 3 and 4.b Normalized phosphorescence spectra of 2@PA6, 3@PA6 and
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Photographs of the long-lived luminescence 2@PA6, 3@PA6, and 4@PA6 films taken
Modulating Triplet Excited-State Energy in Phosphorescent
Chitosan-Derived Carbon Dots with Room-Temperature Phosphorescence and Energy Storage Enhancement Properties. ACS Sustainable Chemistry & Engineering 2022, 10 (9), 3027-3036.
Aggregation-regulated room-temperature phosphorescence
Herein, we demonstrate a facile and general strategy to obtain ecofriendly ultralong phosphorescent materials with multi-mode emission, adjustable excitation
3D-Printable Room Temperature Phosphorescence Polymer
Conventional room temperature phosphorescence (RTP) polymer materials lack a dynamic structural change mechanism for on-demand phosphorescence emission, limiting their
Recent progress in ion-regulated organic room-temperature phosphorescence
Organic room-temperature phosphorescence (RTP) materials have attracted considerable attention for their extended afterglow at ambient conditions, eco-friendliness, and wide-ranging applications in bio-imaging, data storage, security inks, and emergency illumination. Significant advancements have been achiev
Chitosan-Derived Carbon Dots with Room-Temperature Phosphorescence and Energy Storage
Carbon dots with fluorescence from blue to green have been prepared by a microwave-assisted hydrothermal reaction of a chitosan and sodium hydroxide solution. The carbon dots are conjugated graphite nuclei with developed groups on the surface. OH– acts as an activation agent to induce changes in carbon nuclei and surface properties, leading
Layered host–guest long-afterglow ultrathin nanosheets: high-efficiency phosphorescence energy transfer
Materials with afterglow luminescence (e.g. persistent phosphorescence), which can last for an appreciable time after removal of the excitation source, have aroused particular interest during the last several decades by virtue of their long-lived excited states and prolonged emission times. 23–26 Such afterglow materials can release light energy
Many Exciplex Systems Exhibit Organic Long‐Persistent
744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan. 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan. Abstract: Organic long-persistent luminescence (OLPL) is long-lasting luminescence from a photo-generated intermediated state, such as a charge separated state. Here, we show that many exciplex systems exhibit OLPL and that eminssion
Nanocomposite phase change materials for high-performance thermal energy storage
Energy density evaluates the highest energy storage capacity of TES systems, and power density represents the thermal energy storage/retrieval rates [7]. In practical applications, the trade-off between heat charging/discharging power and energy density should be taken into account [7] .
Layered host–guest long-afterglow ultrathin nanosheets: high-efficiency phosphorescence energy
energy-storage light-emitting properties.27,28 Therefore, in prin-ciple, a erglow materials could serve as an effective energy donor D, because instead of the instantaneous spike in energy density associated with an FET donor D, energy is released and
Room-temperature phosphorescence from organic aggregates
This Review analyses key photophysical processes related to triplet excitons, including intersystem crossing, radiative and non-radiative decay, and
Persistent Room-Temperature Phosphorescence from
The emission peak at 575 nm showed a phosphorescence lifetime as long as 1.9 ms at room temperature while the higher energy peak at 540 nm exhibited a much longer lifetime of up to 244 ms at 77 K
Recent progress in ion-regulated organic room-temperature
Organic room-temperature phosphorescence (RTP), that is persistent luminescence or afterglow emission, 1–4 has drawn extensive attention in optical and optoelectronic
10.1: Fluorescence and Phosphorescence
Diana Wong (UCD) 10.1: Fluorescence and Phosphorescence is shared under a not declared license and was authored, remixed, and/or curated by LibreTexts. Fluorescence and phosphorescence are types of molecular luminescence methods. A molecule of analyte absorbs a photon and excites a species.
Room-temperature phosphorescence from organic aggregates
Organic room-temperature-phosphorescent materials are advantageous because of their low cost, ease of preparation and good tailorability and processability, all properties that are required for
Photo‐Controllable Ultralong Room‐Temperature
In this concept, we showcase the upsurge in the studies of dynamic ultralong room-temperature phosphorescence (RTP) materials containing inorganic
Macrocycle γ-Cyclodextrin Confined Polymeric Chromophore Ultralong Phosphorescence Energy
Ultralong lifetime luminescent materials have received tremendous attention due to their potential applications such as flexible electronics, anticounterfeiting, information storage, etc. Organic phosphorescence materials have unique features such as excellent optical properties and good processability.
Phosphorescence resonance energy transfer from purely organic
Phosphorescence energy transfer systems have been applied in encryption, biomedical imaging and chemical sensing. These systems exhibit ultra-large Stokes shifts, high quantum yields and are
Finely manipulating room temperature phosphorescence by
further developed a virtually unbreakable multi-layer encryption system for important information storage Dang, Q. et al. Room-temperature phosphorescence resonance energy transfer for
Long-Persistent High-Temperature Phosphorescence of Zero
Solid-state materials with long-persistence phosphorescence always suffer serious thermal quenching effect that greatly hinders their applications at high-temperature conditions (>373 K). Therefore, developing high-temperature phosphorescence (HTP) materials remains a great challenge. In this work, cytosine (Cyt) is hybridized with indium
Förster Resonance Energy Transfer: Stimulus‐Responsive Purely Organic Room Temperature Phosphorescence
Reversible RTP is attributed to the exceptional self-assembly capability of BrBA, whereas the tunable RTP colors are derived from distinct Förster resonance energy transfer (FRET) processes. The potential applications of RTP materials in information storage and anti-counterfeiting were also experimentally validated.
Visible-light-excited robust room-temperature phosphorescence
Organic room temperature phosphorescence (RTP) is limited to rigid environments. Here, the authors report a single-component system with robust persistent RTP emissions in various aggregation
Efficient room-temperature phosphorescence of covalent organic
Organic room-temperature phosphorescence, a spin-forbidden radiative process, has emerged as an interesting but rare phenomenon with multiple potential applications in optoelectronic
Chitosan-Derived Carbon Dots with Room-Temperature
The carbon dots can also act as electron donors and enable a 184% capacitance increase in graphene oxide. The prepared carbon dots exhibit potential
Persistent Room-Temperature Phosphorescence from Purely Organic Molecules
1 Introduction Persistent room-temperature phosphorescent (RTP) luminophores have gained remarkable interest recently for a number of applications in security printing, [] organic light-emitting diodes (OLEDs), [] optical storage, [] time-gated biological imaging, [] and oxygen sensors [] due to their unique long emission lifetimes,
4.5: Photoluminescence, Phosphorescence, and Fluorescence Spectroscopy
Relation between Absorption and Emission Spectra Fluorescence and phosphorescence come at lower energy than absorption (the excitation energy). As shown in Figure (PageIndex{1}), in absorption, wavelength λ 0 corresponds to a transition from the ground vibrational level of S 0 to the lowest vibrational level of S 1..
3D-Printable Room Temperature Phosphorescence Polymer
Conventional room temperature phosphorescence (RTP) polymer materials lack a dynamic structural change mechanism for on-demand phosphorescence emission, limiting their application in specific scenarios, such as smart devices. However, the development of RTP polymer materials with an on-demand emission capability is highly attractive yet rather
Chitosan-Derived Carbon Dots with Room-Temperature Phosphorescence and Energy Storage
Chitosan-Derived Carbon Dots with Room-Temperature Phosphorescence and Energy Storage Enhancement ACS Sustainable Chemistry & Engineering ( IF 8.4) Pub Date : 2022-02-24, DOI: 10.
