Energy-Transfer-Free, Solid-State Light-Emitting Nanofibers based on Nontoxic, Biocompatible Nanomaterials Prepared by Electrospinning
Han-Yen Wu1*, Chi-Tsu Yuan1, Ling-Yu Guo2, Yui-Whei Chen-Yang2
1Department of physics, Chung Yuan Christian University, Chung Li, Taiwan
2Department of Chemistry, Chung Yuan Christian University, Chung Li, Taiwan
* presenting author:Han-Yen Wu,
Colloidal nano-emitters have attracted much attention due to their wavelength-tunable emission that can be used to generate white light for promising application in flat-panel display and solid-state lighting. Unfortunately, the most mature nano-materials, namely CdSe quantum dots, involve toxic elements, thus hindering their practical uses in the future. Another challenge for colloidal nano-materials in optoelectronics is aggregation-induced photoluminescence (PL) quenching in the solid states. To address the aforementioned two issues, here solid-state nanofibers based on carbon dots or gold nanoclusters can be fabricated using electrospining method. Colloidal nano-emitters can be well dispersed in the nanofibers, thus inter-particle energy transfer does not be introduced, leading to high emission efficiency. In addition, by incorporating conjugated polymer as host matrices, electrically driven light-emitting devices can be developed.

Keywords: Colloidal nano-emitters, Aggregation-induced photoluminescence quenching , Carbon dots, Gold nanoclusters, Electrospining