Piezoelectric and Photoconductive Zinc Oxide–Wood Hybrids Obtained by Atomic Layer Deposition

ACS Nano, Journal Year: 2025, Volume and Issue: unknown

Published: April 13, 2025

The development of sustainable functional wood-based materials for advanced photonic, optical, and energy-harvesting applications is a topic great priority scientific interest. Owing to its inherent piezoactivity photoconductivity, zinc oxide (ZnO) can be help all these applications. While previously used piezoelectric nanogenerators, use enabling wood with photoconductive properties has not yet been demonstrated. Here, we introduce an innovative method produce ZnO-wood hybrids based on atomic layer deposition (ALD), technique so far underrepresented in the field functionalization. By studied combination ALD, customized sample geometry, structure-retaining delignification, careful selection drying method, obtained homogeneous functionalization bulk scaffold layers nanocrystalline ZnO. This approach allowed us achieve control over homogeneity, distribution, coating thickness layer. micro- nanostructure resulting were investigated by electron microscopy as well X-ray diffraction scattering. show anisotropic response due natural structure wood. Moreover, demonstrate ZnO-functionalized fabrication (photo)conductive Upon irradiation UV light, significant decrease resistivity observed, which increases again upon removal light. Finally, fabricate replica thermal cellulose scaffold. treatment leaves behind detailed inorganic down smallest open accessible features such micrometer-sized pits.

Language: Английский

Comprehensive Effects of Isomeric Doping on Electrospun PVDF Films: Towards Smart Wiper Systems Enabled by Piezoelectric Nanogenerators and Machine Learning

Nano Energy, Journal Year: 2025, Volume and Issue: unknown, P. 111094 - 111094

Published: April 1, 2025

Language: Английский