Kinetics of nitrogen-doped carbon dot formation via hydrothermal synthesis

Abstract

How fast is the reaction of N-doped C-dot formation?

Shedding light on the effective fluorophore structure of high fluorescence quantum yield carbon nanodots

“…1,2 In particular, nanosized carbon particles are promising candidates for display and lighting applications due to their superior uorescent properties and low toxicity. Although different structures, depending on starting materials and reaction conditions, are discussed [3][4][5][6] as the uorescence origin, the immense potential of these so-called carbon dots (CD) has already been successfully proven in several elds such as sensing, optoelectronics, photocatalysis, drug delivery et cetera. [7][8][9][10][11][12] Importantly, the properties of CDs are strongly dependent on their synthesis conditions and reaction precursors.…”

“…15 High uorescence quantum yields (QY) have been reported for CDs in recent years. [3][4][5][6]16,17 Since the QYs of "bottom-up" a Institute of Particle Technology (LFG), Friedrich-Alexander-Universität Erlangen-Nürnberg, Cauerstraße 4, 91058 Erlangen, Germany. E-mail: Wolfgang.…”

“…Therefore only few research groups presented results of structural investigations. [3][4][5][6] In this context, the 1 nm size of "bottom-up" synthesized CDs and their environmentallysensitive structure are the biggest obstacles to developing efficient purication procedures and direct characterization techniques. Notably, intense laser irradiation and/or electrical currents applied during characterization can easily destroy the CD structure, leading to false structural information.…”

Microwave-assisted reduction method under nitrogen atmosphere for synthesis and electrical conductivity improvement of reduced graphene oxide (rGO)

“…1,2 Interest in the eld of nanoscience and nanofabrication research is increasing rapidly. This is shown by the vast use of carbon-based nanostructured materials, which include carbon nanotubes, 2,3 fullerenes, 2,3 nanodiamonds, 3 graphene quantum dots, 4 reduced graphene oxide (rGO), 5 carbon dots, 6 and boron carbon oxynitride (BCNO) phosphor materials. 7 These carbon-based nanostructured materials are exciting research subjects due to their excellent mechanical strength, electrical and thermal conductivity, optical properties, low toxicity, tunable color emission, and chemical inertness.…”

Влияние Лигандов И Растворителя На Безызлучательные Переходы В Полупроводниковых Квантовых Точках (Обзор)

“…Авторы работы [44] синтезировали квантовые точки с высоким выходом флуоресценции, излучающие в желтой области спектра, в комбинации с которыми возможно создание эффективных источников белого света на базе CQD. Оуджай и соавторы [45,46] разработали простой и быстрый гидротермальный синтез из лимонной кислоты и мочевины допированных азотом CQD, обладающих высоким квантовым выходом синей флуоресценции. В работах Уанг и Ске с соавторами [47,48] были предложены упрощенные методы получения CQD, активированных азотом и кислородом и обладающих высоким квантовым выходом.…”