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<p>Red-emitting nanohybrid films were fabricated by doping Poly[2-methoxy-5-(3’,7’-dimethyloctyloxy)-1,4-phenylenevinylene] (MDMO-PPV) with CsPbClBr<sub>2</sub> perovskite quantum dots (PQDs) using a low-cost spin-coating technique at systematic concentrations (0.5–20 wt%). The films were characterized using FT-IR spectroscopy, UV-vis absorption spectroscopy, and steady-state fluorescence measurements. Comprehensive characterization demonstrated that systematic doping of MDMO-PPV with CsPbClBr<sub>2</sub> perovskite quantum dots (PQDs) successfully enhanced three critical properties: efficient Förster resonance energy transfer (FRET), improved nonlinear optical (NLO) response, and promising thermal stability at elevated temperatures (80&#xa0;°C). The optimal film with a 10 wt% composition exhibited exceptional photophysical properties, including tuned red fluorescence emission with the highest quantum yield, deep-red CIE chromaticity coordinates (x = 0.66, y = 0.32), and a reduced optical bandgap (<i>E</i><sub><i>g</i></sub> =2.2&#xa0;eV), which facilitates energy-efficient device operation. The current density–voltage (J-V) characteristics of the CsPbClBr<sub>2</sub>@MDMO-PPV nanohybrid-based Schottky OLED devices demonstrated remarkable enhancement compared to pristine MDMO-PPV. This thermally stable OLED technology enables reliable, long-term device operation in arid and semi-arid MENA regions, supporting UN Sustainable Development Goals 7, 12, and 13 through energy-efficient, controlled-environment agricultural technologies.</p> Graphical Abstract <p></p>

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Spectrally Tailored CsPbClBr₂@poly[2-methoxy-5-(3′,7′-dimethyloctyloxy)-1,4-phenylenevinylene] Nanohybrid Films: Red-Emitting Materials for Controlled-Environment Agricultural Lighting

  • 期刊论文

  • 发表日期：

    2026年7月3日

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  • Mohammed Alyami,
  • Samah El-Bashir

摘要

Red-emitting nanohybrid films were fabricated by doping Poly[2-methoxy-5-(3’,7’-dimethyloctyloxy)-1,4-phenylenevinylene] (MDMO-PPV) with CsPbClBr2 perovskite quantum dots (PQDs) using a low-cost spin-coating technique at systematic concentrations (0.5–20 wt%). The films were characterized using FT-IR spectroscopy, UV-vis absorption spectroscopy, and steady-state fluorescence measurements. Comprehensive characterization demonstrated that systematic doping of MDMO-PPV with CsPbClBr2 perovskite quantum dots (PQDs) successfully enhanced three critical properties: efficient Förster resonance energy transfer (FRET), improved nonlinear optical (NLO) response, and promising thermal stability at elevated temperatures (80 °C). The optimal film with a 10 wt% composition exhibited exceptional photophysical properties, including tuned red fluorescence emission with the highest quantum yield, deep-red CIE chromaticity coordinates (x = 0.66, y = 0.32), and a reduced optical bandgap (Eg =2.2 eV), which facilitates energy-efficient device operation. The current density–voltage (J-V) characteristics of the CsPbClBr2@MDMO-PPV nanohybrid-based Schottky OLED devices demonstrated remarkable enhancement compared to pristine MDMO-PPV. This thermally stable OLED technology enables reliable, long-term device operation in arid and semi-arid MENA regions, supporting UN Sustainable Development Goals 7, 12, and 13 through energy-efficient, controlled-environment agricultural technologies.

Graphical Abstract