Cost-Effectiveness Analysis of Phosphor-Converted LED vs. Pure Red and Blue LED in Plant Lighting and Research Advances in Mn4+-Activated Oxide Red Phosphors
KONG Ruiqi
LI Ming
ZHANG Xinyu
QIAN Dahan
LIU Sanlin
CHENG Ming
ZHANG Fangxin
LIU Wen
Abstract：Plant lighting,as a key technology for modern high-efficiency agriculture,faces major constraints in industrial application due to the spectral adaptability and economic cost of its light sources.This paper systematically compares fluorescent-converted LEDs(pc-LEDs)and pure red-blue LEDs in terms of light quality,photosynthetic photon efficacy,energy consumption,and cost characteristics in plant lighting,and reviews the research progress on Mn4+-activated oxide red phosphors.The study shows that although pc-LEDs have lower photosynthetic photon efficiency than pure red-blue LEDs,their broad-spectrum,multi-peak emission characteristics may enhance crop yield.However,in the long term,pc-LEDs exhibit higher energy consumption and maintenance costs,making their overall cost still higher than that of pure red-blue LEDs.Mn4+-activated oxide phosphors,as a key material for pc-LEDs in plant lighting,have been extensively studied.Research indicates that some phosphors(e.g.,BaLaMgSbO6:Mn4+,CaAl12O19-CaAl4O7-MgAl2O4:Mn4+)achieve internal quantum efficiencies exceeding 80％,with excellent thermal stability and spectral adaptability.Future work should focus on optimizing crystal field design and ion co-doping to promote the large-scale application of low-cost,thermally stable Mn4+-based phosphors,thereby advancing innovations in agricultural lighting technology.
Keywords：horticultural lightingphosphor-converted LEDmonochromatic red and blue LEDeconomic viabilityMn4+activated red phosphor
Publication Date：2025-10-31
Online Publishing Date：2025-11-27(First online date of this platform, not the publication date of the document)
Pages：20( 40-59 )