Jump to main content
Jump to site search

Issue 4, 2019
Previous Article Next Article

Glowing stereocomplex biopolymers are generating power: polylactide/carbon quantum dot hybrid nanofibers with high piezoresponse and multicolor luminescence

Author affiliations

Abstract

We report the design and fabrication of novel biodegradable hybrid polymeric nanofibers with the combined advantages of high shear piezoelectricity, multicolor photoluminescence and simultaneously improved heat resistance. The multifunctional flexible nanofibers, with uniform diameters and smooth surfaces, were fabricated through the electrospinning of poly(D-lactide) (PDLA)/poly(L-lactic acid) (PLLA)/carbon quantum dots (CQDs) with dichloromethane and alcohol as the mixed spinning solvent. The electrospinning at a high voltage enhanced the orientation and formation of stereocomplexed polylactide crystals, and at the same time remarkably suppressed the growth of homocrystallites in the ternary composite nanofibers. With the amplitude and/or frequency increase of stimulated dynamic loads, the electrical outputs of the stereocomplex PDLA/PLLA/CQD nanofibers increased, and the maximum open-circuit voltage and short-circuit current output density achieved were 74.2 V cm−3 and 4.9 μA cm−3, respectively. Also, the stereocomplexed nanofiber based nanogenerator, during continuous operation of electromechanical conversion, demonstrated good stability and durability as a power source to operate LEDs, and no electrical output decay was observed for more than 10 000 consecutive working cycles. Moreover, the electrospun hybridized nanofibers emitted different fluorescence colors under laser excitation at different wavelengths. The as-developed ecologically friendly bionanofibers may diversify niche applications in future transient electronics and implantable medical devices as self-powered bio-sensors, bio-piezoelectric nanogenerators, and so on.

Graphical abstract: Glowing stereocomplex biopolymers are generating power: polylactide/carbon quantum dot hybrid nanofibers with high piezoresponse and multicolor luminescence

Back to tab navigation

Supplementary files

Publication details

The article was received on 04 Sep 2018, accepted on 12 Dec 2018 and first published on 13 Dec 2018


Article type: Paper
DOI: 10.1039/C8TA08593E
J. Mater. Chem. A, 2019,7, 1810-1823

  •   Request permissions

    Glowing stereocomplex biopolymers are generating power: polylactide/carbon quantum dot hybrid nanofibers with high piezoresponse and multicolor luminescence

    Y. Xu, L. Jin, X. He, X. Huang, M. Xie, C. Wang, C. Zhang, W. Yang, F. Meng and J. Lu, J. Mater. Chem. A, 2019, 7, 1810
    DOI: 10.1039/C8TA08593E

Search articles by author

Spotlight

Advertisements