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Producing Photoactivated Room Temperature Phosphorescent Glass from Bamboo.

Shaodi Zhang1, Yingxiang Zhai2,3, Jingyi Zhou2,3

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|September 25, 2025
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Summary
This summary is machine-generated.

Researchers developed a sustainable, mechanically strong bamboo-epoxy composite glass with photoactivated room-temperature phosphorescence (RTP). This material dynamically switches luminescence on/off by consuming and re-diffusing oxygen, enabling advanced optical applications.

Keywords:
3D luminescent architecturesbamboomechanical strengthphotoactivatableroom‐temperature phosphorescent

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Area of Science:

  • Materials Science
  • Photonics
  • Sustainable Engineering

Background:

  • Developing mechanically robust and sustainable photoactivated materials is crucial for advanced photonic applications.
  • Room-temperature phosphorescence (RTP) materials often face challenges with oxygen quenching and limited tunability.

Purpose of the Study:

  • To create a sustainable, mechanically strong photoactivated room-temperature phosphorescent (RTP) glass.
  • To investigate the photoactivation mechanism and dynamic luminescence switching capabilities of the developed material.
  • To explore the potential of this material for 3D luminescent architectures and optical data storage.

Main Methods:

  • Infiltrating epoxy resin into a delignified bamboo framework to create a composite material (B-glass).
  • Characterizing the mechanical properties (tensile and impact strength) of the B-glass.
  • Investigating the RTP emission, photoactivation process using UV irradiation, and oxygen quenching/re-diffusion dynamics.

Main Results:

  • The B-glass exhibited exceptional mechanical strength (tensile: 133 MPa; impact: 55.6 kJ·m⁻²).
  • Photoactivation via UV irradiation (365 nm) consumed trapped oxygen, extending RTP lifetime from 21.1 ms to 180.9 ms.
  • Reversible oxygen diffusion enabled dynamic on/off luminescence switching, demonstrating a responsive photonic platform.

Conclusions:

  • The developed B-glass is a sustainable, mechanically robust material with tunable RTP properties.
  • The material offers a novel platform for adaptive photonic technologies, including 3D luminescent structures and multilevel optical data storage.
  • This work presents an eco-friendly approach to RTP materials with potential for scalable fabrication and diverse applications.