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Highly Effi cient Light-Emitting Diode of Graphene Quantum Dots Fabricated from Graphite Intercalation Compounds

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With strong optical absorptivity and a widely tunable bandgap,graphene is an attractive material for optical and optoelectronic devices. [ 1,2 ] Recently, emerging graphene quantum dots (GQDs), single- or few-layer graphene only several nanometers in size, have been implemented in bandgap engineering due to quantum confi nement [ 3,4 ] and edge effects, [ 5 ] which potentially can be exploited in new potential applications of graphene.Specifi cally, fl uorescent GQDs with tunable emission are considered to be next-generation nanomaterials as a potentially inexpensive and safe alternative to semiconductor quantum dots (QDs). [ 6,7 ] Moreover, the chemical inertness and excellent
biocompatibility of GQDs make them attractive for use in bio-sensor, bio-imaging, and photovoltaic applications. [ 8–13 ] However, currently available GQDs have several drawbacks, including i) limited synthesis methods that provide desired
optical properties (i.e., quantum yields); ii) the lack of a mass production method to create GQDs with uniform sizes and shapes without signifi cant loss of their optical properties; iii) diffi culty controlling the emission wavelength of the photoluminescence (PL); and iv) debate over the PL mechanism and contraints on the diversity of applications.

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Informasi Detail

Judul Seri

Adv. Optical Mater.

No. Panggil

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Penerbit

: WILEY-VCH Verlag GmbH & Co. KGaA., 2014

Deskripsi Fisik

Adv. Optical Mater. 2014, 2, 1016–1023

Bahasa

English

ISBN/ISSN

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Klasifikasi

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Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

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Subjek

FISIKA

Info Detail Spesifik

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Pernyataan Tanggungjawab

Wati/Agus

Versi lain/terkait

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