Tuneable light-emitting carbon-dot/polymer flexible films prepared through one-pot synthesis

Susanta Kumar Bhunia, Sukhendu Nandi, Rafi Shikler, Raz Jelinek

Research output: Contribution to journalArticlepeer-review

69 Scopus citations

Abstract

Development of efficient, inexpensive, and environmentally-friendly light emitters, particularly devices that produce white light, have drawn intense interest due to diverse applications in the lighting industry, photonics, solar energy, and others. We present a simple strategy for the fabrication of flexible transparent films exhibiting tuneable light emission through one-pot synthesis of polymer matrixes with embedded carbon dots assembled in situ. Importantly, different luminescence colours were produced simply by preparing C-dot/polymer films using carbon precursors that yielded C-dots exhibiting distinct fluorescence emission profiles. Furthermore, mixtures of C-dot precursors could be also employed for fabricating films exhibiting different colours. In particular, we successfully produced films emitting white light with attractive properties (i.e. "warm" white light with a high colour rendering index)-a highly sought after goal in optical technologies.

Original languageEnglish
Pages (from-to)3400-3406
Number of pages7
JournalNanoscale
Volume8
Issue number6
DOIs
StatePublished - 14 Feb 2016

ASJC Scopus subject areas

  • Materials Science (all)

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