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<p>This study investigates the light-diffusing capabilities of ZnO nanowires synthesized using the aqueous chemical bath deposition method on PET substrates. By systematically varying Zn source concentrations, the morphology and optical performance of ZnO nanowires were tuned. Scanning electron microscopy revealed that nanowires grown at optimal Zn sources (0.75&#xa0;g and 1.2&#xa0;g) exhibited sharp tip morphologies, while higher or lower Zn sources led to flatter tips due to isotropic growth or insufficient precursor availability. Optical characterization demonstrated that ZnO nanowires grown at 1.2&#xa0;g of the Zn source achieved a maximum total transmittance of ~ 58% and a scattering angle of 53°, outperforming commercial optical diffusers. The transmission haze values peaked at 98.5% for nanowires grown at 1.2&#xa0;g of the Zn source, attributed to the enhanced refractive index boundaries and optimized structural properties. These findings highlight the potential of ZnO nanowires as high-performance optical diffusers for advanced optoelectronic applications.</p> Graphical Abstract <p></p>

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Enhanced Light-Scattering Properties of Aqueous Chemical Bath Deposited ZnO Nanowires: Influence of Zinc Source Concentration

  • 期刊论文

  • 发表日期：

    2025年1月18日

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  • Vinaya Kumar Arepalli,
  • Eunyeong Yang,
  • Choong-Heui Chung

摘要

This study investigates the light-diffusing capabilities of ZnO nanowires synthesized using the aqueous chemical bath deposition method on PET substrates. By systematically varying Zn source concentrations, the morphology and optical performance of ZnO nanowires were tuned. Scanning electron microscopy revealed that nanowires grown at optimal Zn sources (0.75 g and 1.2 g) exhibited sharp tip morphologies, while higher or lower Zn sources led to flatter tips due to isotropic growth or insufficient precursor availability. Optical characterization demonstrated that ZnO nanowires grown at 1.2 g of the Zn source achieved a maximum total transmittance of ~ 58% and a scattering angle of 53°, outperforming commercial optical diffusers. The transmission haze values peaked at 98.5% for nanowires grown at 1.2 g of the Zn source, attributed to the enhanced refractive index boundaries and optimized structural properties. These findings highlight the potential of ZnO nanowires as high-performance optical diffusers for advanced optoelectronic applications.

Graphical Abstract