TY - JOUR
T1 - Plant Growth Modeling and Response from Broadband Phosphor-Converted Lighting for Indoor Agriculture
AU - Huang, Wen Tse
AU - Su, Ting Yi
AU - Chuang, Jung Hwa
AU - Lu, Kuang Mao
AU - Hu, Shu Fen
AU - Liu, Ru Shi
N1 - Publisher Copyright:
© 2023 American Chemical Society.
PY - 2023/7/12
Y1 - 2023/7/12
N2 - The rapid change in population, environment, and climate is accompanied by the food crisis. As a new type of farming, indoor agriculture opens the possibility of addressing this crisis in the future. In this study, a phosphor-converted light-emitting diode (pc-LED), as energy-saving lighting for indoor agriculture, was used to evaluate the response and effect on the growth of Lactuca sativa. Red phosphors, SrLiAl3N4:Eu2+ (SLA) and CaAlSiN3:Eu2+ (CASN), were characterized and analyzed with crystal structure, morphology, and optical properties. Eu2+-doped phosphors provided the red emission of around 650 nm which is highly matched with the absorption of chlorophyll. Under the same luminescence intensity, broader emission of CASN pc-LED demonstrated a 100% increase of photosynthetically active photon flux density and 130% promotion of plant weight than the SLA pc-LED, which reflected the positive result of the carbon fixation. The chlorophyll and nitrate responses have also revealed the effect of broader red light on indoor agriculture.
AB - The rapid change in population, environment, and climate is accompanied by the food crisis. As a new type of farming, indoor agriculture opens the possibility of addressing this crisis in the future. In this study, a phosphor-converted light-emitting diode (pc-LED), as energy-saving lighting for indoor agriculture, was used to evaluate the response and effect on the growth of Lactuca sativa. Red phosphors, SrLiAl3N4:Eu2+ (SLA) and CaAlSiN3:Eu2+ (CASN), were characterized and analyzed with crystal structure, morphology, and optical properties. Eu2+-doped phosphors provided the red emission of around 650 nm which is highly matched with the absorption of chlorophyll. Under the same luminescence intensity, broader emission of CASN pc-LED demonstrated a 100% increase of photosynthetically active photon flux density and 130% promotion of plant weight than the SLA pc-LED, which reflected the positive result of the carbon fixation. The chlorophyll and nitrate responses have also revealed the effect of broader red light on indoor agriculture.
KW - Eu-doped phosphors
KW - broadband emission
KW - full-width half maximum
KW - indoor agriculture
KW - phosphor-converted lighting
KW - plant growth modeling and response
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U2 - 10.1021/acsami.3c06454
DO - 10.1021/acsami.3c06454
M3 - Article
C2 - 37364173
AN - SCOPUS:85164375649
SN - 1944-8244
VL - 15
SP - 32589
EP - 32596
JO - ACS Applied Materials and Interfaces
JF - ACS Applied Materials and Interfaces
IS - 27
ER -
