发光学报2017，Vol.38Issue(9)：1185-1191,7.DOI:10.3788/fgxb20173809.1185
CaAlSiN3∶Eu2+荧光粉掺杂PC透光罩的制备及其在植物灯中的应用
Preparation of CaAlSiN3∶Eu2+ Phosphor Doped PC Lampshade for Plant Growth Lights
摘要
Abstract
In order to achieve the goal of the interchange between traditional white light emitting diodes (WLEDs) and plant growth lights, the fluorescent polycarbonate (PC) lampshades with different mass fraction of CaAlSiN3∶Eu2+ (CASN∶Eu2+) phosphor were prepared through granulation by high-temperature melting process.The lampshade samples were characterized by structural and optical analysis, showing a good stability during the preparation process.Meanwhile, the fluorescent PC lampshades were equipped with WLED T8 tubes for plant growth lights.The EL spectra, optical parameters and application of such plant growth lights were given.With the increase of CASN∶Eu2+ phosphor mass fraction in PC lampshade encapsulated WLEDs, the CIE color coordinates change from (0.327 2, 0.346 7) to (0.389 5, 0.382 4), the correlated color temperature (CCT) declines from 5 757 to 3 807 K, the color rendering index raises from 70.3 to 77.6, but the luminous efficiency decreases slightly.Furthermore, the electroluminescence (EL) spectra of CaAlSiN3∶Eu2+ phosphor doped PC lampshade encapsulated WLEDs match well with the absorption ones of lettuce, and the growth of lettuce is better to be promoted under irradiation by corresponding WLEDs (phosphor mass fraction: 4‰), indicating that the design of combination of fluorescent PC lampshades and LED T8 tubes has a good application prospect for plant growth.关键词
CaAlSiN3∶Eu2+/聚碳酸酯/透光罩/植物灯/WLEDKey words
CaAlSiN3∶Eu2+/polycarbonate/lampshade/plant growth light/WLED分类
数理科学引用本文复制引用
邓建昆,陈燕科,陈智杰,雷炳富,郑胤建,崔佳维,袁俊强,申盼望,李善乾..CaAlSiN3∶Eu2+荧光粉掺杂PC透光罩的制备及其在植物灯中的应用[J].发光学报,2017,38(9):1185-1191,7.基金项目
国家自然科学基金(21671070,21571067) （21671070,21571067）
广东省自然科学基金(S2013030012842) （S2013030012842）
广州市科技计划(201704030086)资助项目Supported by National Natural Science Foundation of China (21671070, 21571067) （201704030086）
Guangdong Natural Science Foundation (S2013030012842) （S2013030012842）
Guangzhou Science & Technology Program Project (201704030086) （201704030086）
