White‐Light‐Emitting Materials Constructed from Supramolecular Approaches

Abstract

White‐light emissive materials are gaining increasing attentions, ascribed to the potential applications in display and lighting devices as well as sensors. The realization of white‐light emission demands either the simultaneous emission of red, green, and blue colors or at least two complementary colors with similar distribution of emission intensities covering the entire visible spectrum. The introduction of supramolecular approaches not only relieves the negative effects of intermolecular interactions and energy transfer processes, but also endows the white‐light emissive materials with the capacity of color tunability and stimuli‐responsiveness, due to the dynamic and reversible nature of noncovalent interactions. Supramolecular materials with well‐ordered structures can regulate the energy transfer by the assembly–disassembly process, and meanwhile bring in extra fascinating attributes. This review mainly describes the recent reports on fabricating white‐light‐emitting materials from supramolecular approaches such as hydrogen bonding, host–guest interaction, π–π stacking, and metal coordination, which enriches the conceptions and pathways to afford such materials. Moreover, some perspectives together with pressing challenges are presented in the end, synchronously forecasting the potential trends of white‐light emissive materials.

White‐Light‐Emitting Melamine‐Formaldehyde Microspheres through Polymer‐Mediated Aggregation and Encapsulation of Graphene Quantum Dots

“…White‐light‐emitting materials have important applications in the fields of light‐emitting diode (LED) lighting, sensing, and other fields . Currently, practical white‐light‐emitting materials are mainly inorganic phosphors containing rare‐earth elements (REEs) .…”

“…[1][2][3][4][5] Currently, practical white-light-emitting materials are mainly inorganic phosphors containing rareearth elements (REEs). [1][2][3][4][5] Currently, practical white-light-emitting materials are mainly inorganic phosphors containing rareearth elements (REEs).…”

Site‐Selective, Multistep Functionalizations of CO2‐Based Hyperbranched Poly(alkynoate)s toward Functional Polymetric Materials

“…We also constructed white light-emitting (WLE) polymeric materials by eliminating the ET through altering the grafted periphery moiety from C343 to pyrene derivatives, whose emission is complementary to that of hb-P1 in the solid state. [51][52][53][54][55] As shown in Scheme S7 (Supporting Information), the pyrene-based, deep-blue emitters 13 and 14 were first synthesized in excellent yields. We then studied the absorption and photoluminescence (PL) spectra of 13, 14, and hb-P1 in their film states ( Figure S36, Supporting Information).…”

Solvent‐Free Luminous Molecular Liquids

“…White‐light emissive materials have been extensively explored owing to their widespread applications in lighting devices, display media, and sensors . In 2012, we blended the blue‐emitting liquid OPV2 (or OPV4 ) ( Figure a,b) with green‐emitting tris(8‐hydroxyquinolinato)aluminum (Alq3) and red‐emitting rubrene (Figure c) .…”