Perovskite Quantum Dots for Emerging Displays: Recent Progress and Perspectives DOI Creative Commons
Xinxin Ren, Xiang Zhang, Hongxing Xie

и другие.

Nanomaterials, Год журнала: 2022, Номер 12(13), С. 2243 - 2243

Опубликована: Июнь 29, 2022

The excellent luminescence properties of perovskite quantum dots (PQDs), including wide excitation wavelength range, adjustable emission wavelength, narrow full width at half maximum (FWHM), and high photoluminescence yield (PLQY), highly match the application requirements in emerging displays. Starting from fundamental structure related optical properties, this paper first introduces existing synthesis approaches PQDs that have been will potentially be used for display devices, then summarizes stability improving with retention PQDs' performance. Based on above, recent research progress displays is further elaborated. For photoluminescent applications, can embedded backlighting device or color filter liquid crystal (LCD), they may function as conversion layer blue organic light-emitting diodes (OLED) micro-scale (μLED). In terms next-generation electroluminescent displays, notable quantum-dot light emitting (PeQLED) has achieved within past decade, especially external efficiency (EQE). To conclude, key directions future PQD development are summarized promising prospects widespread applications fields.

Язык: Английский

Aggregation-Induced Emission (AIE), Life and Health DOI Creative Commons
Haoran Wang, Qiyao Li, Parvej Alam

и другие.

ACS Nano, Год журнала: 2023, Номер 17(15), С. 14347 - 14405

Опубликована: Июль 24, 2023

Light has profoundly impacted modern medicine and healthcare, with numerous luminescent agents imaging techniques currently being used to assess health treat diseases. As an emerging concept in luminescence, aggregation-induced emission (AIE) shown great potential biological applications due its advantages terms of brightness, biocompatibility, photostability, positive correlation concentration. This review provides a comprehensive summary AIE luminogens applied structure dynamic physiological processes, disease diagnosis treatment, detection monitoring specific analytes, followed by representative works. Discussions on critical issues perspectives future directions are also included. aims stimulate the interest researchers from different fields, including chemistry, biology, materials science, medicine, etc., thus promoting development fields life health.

Язык: Английский

Процитировано

202

Carbon dots: mysterious past, vibrant present, and expansive future DOI
Boyang Wang, Geoffrey I. N. Waterhouse, Siyu Lu

и другие.

Trends in Chemistry, Год журнала: 2022, Номер 5(1), С. 76 - 87

Опубликована: Ноя. 10, 2022

Язык: Английский

Процитировано

166

Aggregation in carbon dots DOI Creative Commons

Yi Ru,

Geoffrey I. N. Waterhouse, Siyu Lu

и другие.

Aggregate, Год журнала: 2022, Номер 3(6)

Опубликована: Ноя. 21, 2022

Abstract Carbon dots (CDs) possess outstanding luminescence properties, making them widely used in optical displays, anti‐counterfeiting systems, bioimaging, and sensors. Presently, there is much debate about the classification of CDs, as well their formation process, structure, fluorescence mechanisms. Aggregation plays an important role (e.g., aggregation‐induced emission) yet seldom studied detail. This review aims fill this knowledge gap, by first exploring how aggregation leads to different types CDs graphene quantum dots, carbon carbonized polymer dots), followed a detailed examination effect morphology on properties application CDs. Finally, opportunities challenges for various applications are discussed, with need better mechanistic understanding being imperative.

Язык: Английский

Процитировано

120

Rational synthesis of silane-functionalized carbon dots with high-efficiency full-color solid-state fluorescence for light emitting diodes DOI
Guangzhou Hu, Yang Wang, Shuang Zhang

и другие.

Carbon, Год журнала: 2022, Номер 203, С. 1 - 10

Опубликована: Ноя. 20, 2022

Язык: Английский

Процитировано

91

Ultra‐Narrow‐Bandwidth Deep‐Red Electroluminescence Based on Green Plant‐Derived Carbon Dots DOI
Renjing Chen, Zhibin Wang, Tao Pang

и другие.

Advanced Materials, Год журнала: 2023, Номер 35(36)

Опубликована: Май 25, 2023

Deep-red light-emitting diodes (DR-LEDs, >660 nm) with high color-purity and narrow-bandwidth emission are promising for full-color displays solid-state lighting applications. Currently, the DR-LEDs mainly based on conventional emitters such as organic materials heavy-metal quantum dots (QDs) perovskites. However, always suffer from complicated synthesis, inferior color purity full-width at half-maximum (FWHM) more than 40 nm, QDs perovskites still serious problems related to toxicity. Herein, this work reports synthesis of efficient deep-red carbon (CDs) a record narrow FWHM 21 nm yield 50% readily available green plants. Moreover, an exciplex host is further established using polymer small molecular blend, which has been shown be strategy producing monochrome CDs via Förster energy transfer (FET). The CD-LEDs display Commission Internationale de l'Eclairage (CIE) coordinates (0.692, 0.307). To best knowledge, first report in region, opening door application development high-resolution technologies.

Язык: Английский

Процитировано

91

Disulfide Crosslinking‐Induced Aggregation: Towards Solid‐State Fluorescent Carbon Dots with Vastly Different Emission Colors DOI
Rui Fu, Haoqiang Song, Xingjiang Liu

и другие.

Chinese Journal of Chemistry, Год журнала: 2023, Номер 41(9), С. 1007 - 1014

Опубликована: Янв. 14, 2023

Comprehensive Summary Solid‐state fluorescent multi‐color carbon dots (SFM‐CDs), prepared using the same precursor(s) without need for dispersion in a solid matrix, are highly demanded wide range of applications. Herein, we report microwave‐assisted strategy preparation SFM‐CDs with blue, yellow and red emissions within 5 min from precursors. The as‐prepared B‐CDs, Y‐CDs, R‐CDs possessed bright fluorescence at 425 nm, 550 640 photoluminescence quantum yields (PLQYs) 54.68%, 17.93%, 2.88%, respectively. structure consisted 5‐oxo‐3,5‐dihydro‐2 H ‐thiazolo [3,2‐ ] pyridine‐7‐carboxylic acid (TPCA) immobilized on surface core, size core degree disulfide crosslinking between CDs both increasing going B‐CDs to R‐CDs, as verified by mechanochromic experiments. excellent solid‐state performance allowed their utilization converter layer LEDs white high color rendering index.

Язык: Английский

Процитировано

81

Manipulation of clusteroluminescence in carbonyl‐based aliphatic polymers DOI Creative Commons
Ziteng Zhang, Zuping Xiong,

Bo Chu

и другие.

Aggregate, Год журнала: 2022, Номер 3(6)

Опубликована: Окт. 14, 2022

Abstract Clusteroluminogens (CLgens), nonconjugated structures with visible luminescence at the clustering state, have recently received remarkable attention due to their great theoretical significance and practical values. In carbonyl‐based aliphatic polymers, ( n , π *) transition of carbonyl groups through‐space interactions been demonstrated play an important role in clusteroluminescence (CL) properties, but it is still a big challenge manipulate CL molecular level. this work, six polymers different heteroatoms steric hindrances were synthesized, photophysical properties systematically studied. These all showed emission efficiency wavelength. Experimental studies indicated that could be manipulated by changing electronic rigidity polymer chains. This work not only gains further insights into mechanism also provides reliable strategies design non‐conjugated luminescent materials.

Язык: Английский

Процитировано

77

Room Temperature Phosphorescence Carbon Dots: Preparations, Regulations, and Applications DOI
Shengju Zhou,

Feixiang Wang,

Ning Feng

и другие.

Small, Год журнала: 2023, Номер 19(33)

Опубликована: Апрель 22, 2023

Abstract Room temperature phosphorescence (RTP) materials have drawn considerable attention by virtue of their outstanding features. Compared with organometallic complexes and pure organic compounds, carbon dots (CDs) emerged as a new type RTP materials, which show great advantages, such moderate reaction condition, low toxicity, cost, tunable optical properties. In this review, the important progress made in CDs is summarized, an emphasis on latest developments. The synthetic strategies will be comprehensively followed detailed introduction performance regulation potential applications anti‐counterfeiting, information encryption, sensing, light‐emitting diodes, biomedicine. Finally, remaining major challenges for are discussed opportunities future proposed.

Язык: Английский

Процитировано

76

Assignment of Core and Surface States in Multicolor‐Emissive Carbon Dots DOI

Bohan Zhang,

Bingzhe Wang, Elena V. Ushakova

и другие.

Small, Год журнала: 2022, Номер 19(31)

Опубликована: Окт. 10, 2022

Abstract It is important to reveal the luminescence mechanisms of carbon dots (CDs). Herein, CDs with two types optical centers are synthesized from citric acid in formamide by a solvothermal method, and show high photoluminescence quantum yield reaching 42%. Their green/yellow emission exhibits pronounced vibrational structure resistance toward photobleaching, while broad red sensitive solvents, temperature, UV–IR. Under UV–IR, gradually bleached due photoinduced dehydration deprotonated surface dimethyl sulfoxide, this process hindered water. From analysis steady‐state time‐resolved transient absorption data together density functional theory calculations, green/ yellow assigned conjugated sp 2 ‐domains (core state) similar organic dye derivatives stacked within disk‐shaped CDs; emission—to oxygen‐containing groups bound (surface state), whereas energy transfer core state can happen.

Язык: Английский

Процитировано

75

Lasing of carbon dots: Chemical design, mechanisms, and bright future DOI Creative Commons
Yongqiang Zhang, Siyu Lu

Chem, Год журнала: 2023, Номер 10(1), С. 134 - 171

Опубликована: Окт. 19, 2023

Язык: Английский

Процитировано

75