Plant Growth Modeling and Response from Broadband Phosphor-Converted Lighting for Indoor Agriculture

Wen Tse Huang; Ting Yi Su; Jung Hwa Chuang; Kuang Mao Lu; Shu Fen Hu; Ru Shi Liu

doi:10.1021/acsami.3c06454

Plant Growth Modeling and Response from Broadband Phosphor-Converted Lighting for Indoor Agriculture

Wen Tse Huang
, Ting Yi Su
, Jung Hwa Chuang
, Kuang Mao Lu
, Shu Fen Hu^*
, Ru Shi Liu^*

^*Corresponding author for this work

Department of Physics

Research output: Contribution to journal › Article › peer-review

45 Citations (Scopus)

Abstract

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.

Original language	English
Pages (from-to)	32589-32596
Number of pages	8
Journal	ACS Applied Materials and Interfaces
Volume	15
Issue number	27
DOIs	https://doi.org/10.1021/acsami.3c06454
Publication status	Published - 2023 Jul 12

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 13 Climate Action

Keywords

Eu-doped phosphors
broadband emission
full-width half maximum
indoor agriculture
phosphor-converted lighting
plant growth modeling and response

ASJC Scopus subject areas

General Materials Science

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10.1021/acsami.3c06454

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title = "Plant Growth Modeling and Response from Broadband Phosphor-Converted Lighting for Indoor Agriculture",

abstract = "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.",

keywords = "Eu-doped phosphors, broadband emission, full-width half maximum, indoor agriculture, phosphor-converted lighting, plant growth modeling and response",

author = "Huang, \{Wen Tse\} and Su, \{Ting Yi\} and Chuang, \{Jung Hwa\} and Lu, \{Kuang Mao\} and Hu, \{Shu Fen\} and Liu, \{Ru Shi\}",

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year = "2023",

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doi = "10.1021/acsami.3c06454",

language = "English",

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AU - Huang, Wen Tse

AU - Su, Ting Yi

AU - Chuang, Jung Hwa

AU - Lu, Kuang Mao

AU - Hu, Shu Fen

AU - Liu, Ru Shi

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.

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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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Plant Growth Modeling and Response from Broadband Phosphor-Converted Lighting for Indoor Agriculture

Abstract

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Keywords

ASJC Scopus subject areas

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