Zobrazeno 1 - 10
of 2 372
pro vyhledávání: '"light emitting diodes (LEDs)"'
Publikováno v:
Ophthalmology and Therapy, Vol 12, Iss 5, Pp 2813-2816 (2023)
Externí odkaz:
https://doaj.org/article/e30f52df48a14e708c5898a383a6a3e2
Autor:
Marcos Vinícius Marques Pinheiro, Maria Inês Diel, Oscar Valeriano Sanchéz Valera, Leonardo Antonio Thiesen, Anderson Rafael Webler, Guilherme Masarro-Araujo, Diéssica Letícia Junges, Tainara Gris, Denise Schmidt
Publikováno v:
Revista Ceres, Vol 70, Iss 3, Pp 40-53 (2023)
ABSTRACT Light is a determining factor in plant morphophysiology, as it influences the growth and development of agricultural crops. Thus, the objective was to investigate the effects of light sources on the growth and development of “biquinho” p
Externí odkaz:
https://doaj.org/article/e7c28b2c76544eac9cd18086ddde3d32
Publikováno v:
Journal of Advanced Ceramics, Vol 12, Iss 5, Pp 954-971 (2023)
Novel rare-earth (RE; e.g., europium (Eu3+), samarium (Sm3+), and praseodymium (Pr3+)) and transition metal (TM4+; e.g., manganese (Mn4+)) ion single-/co-doped double-perovskite Ca2InTaO6 (CITO) phosphors were prepared and investigated with respect t
Externí odkaz:
https://doaj.org/article/10b84169fa8646e9ad966e00d546f713
Autor:
Shihao Liang, Guobin Wang, Tao Tao, Feifan Xu, Kai Chen, Ting Zhi, Zhifang Zhu, Wenjuan Chen, Yong Li, Ke Xu, Bin Liu, Rong Zhang
Publikováno v:
IEEE Photonics Journal, Vol 15, Iss 3, Pp 1-4 (2023)
GaN-based micro light-emitting diode (LED) has gradually become one of the promising light sources for visible light communication (VLC), of which high modulation bandwidth has been demonstrated. In order to acquire high speed and high brightness for
Externí odkaz:
https://doaj.org/article/60f9a068af614e87b3cbbdbd47832cc4
Autor:
Shivani Rajendra Teli, Carlos Guerra-Yanez, Vicente Matus Icaza, Rafael Perez-Jimenez, Zabih Ghassemlooy, Stanislav Zvanovec
Publikováno v:
IEEE Access, Vol 11, Pp 55107-55116 (2023)
This paper outlines the concept of a multilevel bipolar on-off keying hybrid optical wireless communication (OWC) system using a single light-emitting diode (LED) as a transmitter as well as photodiode and camera-based receivers for versatile indoor
Externí odkaz:
https://doaj.org/article/9180dd4bc01745b78dac97f6440e9c80
Autor:
Georges Zissis, Paolo Bertoldi
Publikováno v:
IEEE Open Journal of Industry Applications, Vol 4, Pp 111-120 (2023)
Research and development over the last century have historically concentrated on improving one specific aspect of energy efficiency. The market penetration rate for systems using solid-state light sources is currently between 40 and 45 percent, and i
Externí odkaz:
https://doaj.org/article/516cef137bd44372a34a66aa5e092a80
Autor:
Xu Liu, Shengrui Xu, Hongchang Tao, Yanrong Cao, Xinhao Wang, Hengsheng Shan, Jincheng Zhang, Yue Hao
Publikováno v:
IEEE Photonics Journal, Vol 15, Iss 2, Pp 1-5 (2023)
In this work, we investigate the performance improvement of N-polar AlGaN-based deep ultraviolet light-emitting diodes (DUV LEDs) by the inversion of the hole injection layer from N-polar to Ga-polar. The influence of different inversion points on th
Externí odkaz:
https://doaj.org/article/8fdfa0b79b7d4ab0b6982d1d15558288
Autor:
Feifan Xu, Pengjiang Qiu, Tao Tao, Pengfei Tian, Xiaoyan Liu, Ting Zhi, Zili Xie, Bin Liu, Rong Zhang
Publikováno v:
IEEE Photonics Journal, Vol 15, Iss 1, Pp 1-4 (2023)
Micro-light-emitting diodes (micro-LEDs) with high modulation rates and low power consumption could attract growing attention as visible light communication (VLC) technology advances. The designed and fabricated semi-polar micro-LEDs have achieved hi
Externí odkaz:
https://doaj.org/article/ec61d6353ffd4012b22ab5284f842342
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