Scholarlink

<p>Cultivating more food to feed the world’s expanding population while reducing resource use and environmental impact is the main problem facing the agriculture industry. In order to overcome the food crisis, an innovative and suitable lighting system is required. Hence, Sm<sup>3+</sup>-induced Al<sub>2</sub>O<sub>3</sub>-Na<sub>2</sub>O-ZnO-B<sub>2</sub>O<sub>3</sub>-WO<sub>3</sub> (BW) glass has been prepared via the melt quenching procedure and exhibits numerous characteristics for the utility in agricultural lighting. The diffraction pattern confirms the noncrystalline character of the undoped BW glasses. Sm<sup>3+</sup> ion-doped BW glasses show absorption peaks in the 350–1750&#xa0;nm range with the indirect optical band gap of 3.68&#xa0;eV for the BW:Sm<sub>1.0</sub> glass sample. The photoluminescence (PL) spectrum of BW:Sm glass was proficiently pumped by <i>n</i>-UV radiation with an intense peak at 403&#xa0;nm owing to the transition of Sm<sup>3+</sup> ions. The PL spectra show three major emission peaks with an intense peak positioned at 645&#xa0;nm. The optimal PL intensity was found for 1.5&#xa0;mol.% Sm<sup>3+</sup> ions doped in BW glass under 403&#xa0;nm excitation. The Commission Internationale de l’Éclairage (CIE) color coordinates for Sm<sup>3+</sup>-doped BW glasses were situated in the deep red zone with high color purity. The decay time value was found to be in the microsecond range for optimized BW:Sm glasses. The PL intensity was acquired to 94.12% at 150°C and 90.61% at 200°C, which recommends that the BW:Sm glass are thermally stable. All studied outcomes proclaim that the prepared BW:Sm glass serve as an effective red-emitting component for agricultural lighting devices.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Synthesis and Optical Properties of Red Emitting Thermally Stable Sm3+-Induced Al2O3-Na2O-ZnO-B2O3-WO3 Glass for Agricultural LEDs

  • 期刊论文

  • 发表日期：

    2025年9月23日

查看全文
  • Mukesh K. Sahu,
  • Vikas Sangwan,
  • Ravina Lohan,
  • Isha Malik,
  • Nisha Deopa,
  • Kartika Maheshwari,
  • Amit K. Vishwakarma,
  • D. V. Prashant

摘要

Cultivating more food to feed the world’s expanding population while reducing resource use and environmental impact is the main problem facing the agriculture industry. In order to overcome the food crisis, an innovative and suitable lighting system is required. Hence, Sm3+-induced Al2O3-Na2O-ZnO-B2O3-WO3 (BW) glass has been prepared via the melt quenching procedure and exhibits numerous characteristics for the utility in agricultural lighting. The diffraction pattern confirms the noncrystalline character of the undoped BW glasses. Sm3+ ion-doped BW glasses show absorption peaks in the 350–1750 nm range with the indirect optical band gap of 3.68 eV for the BW:Sm1.0 glass sample. The photoluminescence (PL) spectrum of BW:Sm glass was proficiently pumped by n-UV radiation with an intense peak at 403 nm owing to the transition of Sm3+ ions. The PL spectra show three major emission peaks with an intense peak positioned at 645 nm. The optimal PL intensity was found for 1.5 mol.% Sm3+ ions doped in BW glass under 403 nm excitation. The Commission Internationale de l’Éclairage (CIE) color coordinates for Sm3+-doped BW glasses were situated in the deep red zone with high color purity. The decay time value was found to be in the microsecond range for optimized BW:Sm glasses. The PL intensity was acquired to 94.12% at 150°C and 90.61% at 200°C, which recommends that the BW:Sm glass are thermally stable. All studied outcomes proclaim that the prepared BW:Sm glass serve as an effective red-emitting component for agricultural lighting devices.