A photon-recycling incandescent lighting device.

Zhang, Heng; Huang, Zhequn; Ding, Min; Wang, Qixiang; Feng, Yilin; Li, Zhenghong; Wang, Shan; Yang, Lei; Chen, Shuai; Shang, Wen; Zhang, Jian; Deng, Tao; Xu, Hongxing; Cui, Kehang

Zhang, Heng; Huang, Zhequn; Ding, Min; Wang, Qixiang; Feng, Yilin; Li, Zhenghong; Wang, Shan; Yang, Lei; Chen, Shuai; Shang, Wen; Zhang, Jian; Deng, Tao; Xu, Hongxing; Cui, Kehang.

Afiliação

Zhang H; School of Materials Science and Engineering, State Key Laboratory of Metal Matrix Composites, Center for Hydrogen Science, Shanghai Jiao Tong University, Shanghai 200240, China.
Huang Z; Zhiyuan Innovative Research Center, Shanghai Jiao Tong University, Shanghai 200240, China.
Ding M; Shanghai HeiYi Materials Technology Co. Ltd., Shanghai 200240, China.
Wang Q; School of Materials Science and Engineering, State Key Laboratory of Metal Matrix Composites, Center for Hydrogen Science, Shanghai Jiao Tong University, Shanghai 200240, China.
Feng Y; School of Materials Science and Engineering, State Key Laboratory of Metal Matrix Composites, Center for Hydrogen Science, Shanghai Jiao Tong University, Shanghai 200240, China.
Li Z; Shanghai IdeaOptics Co. Ltd., Shanghai 200433, China.
Wang S; Shanghai IdeaOptics Co. Ltd., Shanghai 200433, China.
Yang L; Tianjin H-Chip Technology Group Corporation, Tianjin 300467, China.
Chen S; Tianjin H-Chip Technology Group Corporation, Tianjin 300467, China.
Shang W; School of Materials Science and Engineering, State Key Laboratory of Metal Matrix Composites, Center for Hydrogen Science, Shanghai Jiao Tong University, Shanghai 200240, China.
Zhang J; Research Center for Transparent Ceramics, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China.
Deng T; School of Materials Science and Engineering, State Key Laboratory of Metal Matrix Composites, Center for Hydrogen Science, Shanghai Jiao Tong University, Shanghai 200240, China.
Xu H; Institute of Advanced Studies, School of Physics and Technology, Wuhan University, Hubei 430072, China.
Cui K; School of Materials Science and Engineering, State Key Laboratory of Metal Matrix Composites, Center for Hydrogen Science, Shanghai Jiao Tong University, Shanghai 200240, China.

Sci Adv ; 9(15): eadf3737, 2023 Apr 14.

Article em En | MEDLINE | ID: mdl-37043569

ABSTRACT

ABSTRACT

Energy-efficient, healthy lighting is vital for human beings. Incandescent lighting provides high-fidelity color rendering and ergonomic visual comfort yet is phased out owing to low luminous efficacy (15 lumens per watt) and poor lifetime (2000 hours). Here, we propose and experimentally realize a photon-recycling incandescent lighting device (PRILD) with a luminous efficacy of 173.6 lumens per watt (efficiency of 25.4%) at a power density of 277 watts per square centimeter, a color rendering index (CRI) of 96, and a LT70-rated lifetime of >60,000 hours. The PRILD uses a machine learning-designed 637-nm-thick visible-transparent infrared-reflective filter and a Janus carbon nanotube/hexagonal boron nitride filament to recycle 92% of the infrared radiation. The PRILD has higher luminous efficacy, CRI, and lifetime compared with solid-state lighting and thus is promising for high-power density lighting.

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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Sci Adv Ano de publicação: 2023 Tipo de documento: Article País de afiliação: China

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