Zobrazeno 1 - 10
of 324
pro vyhledávání: '"Siu Fung, Yu"'
Autor:
Yan Shao, Wei Gao, Hejin Yan, Runlai Li, Ibrahim Abdelwahab, Xiao Chi, Lukas Rogée, Lyuchao Zhuang, Wei Fu, Shu Ping Lau, Siu Fung Yu, Yongqing Cai, Kian Ping Loh, Kai Leng
Publikováno v:
Nature Communications, Vol 13, Iss 1, Pp 1-10 (2022)
The surface octahedral tilt in exfoliated 2D perovskites is directly visualized by STM and the degree of the tilt varies with the number of layers of inorganic slabs and result in different amounts of excitonic red shift in photoluminescence.
Externí odkaz:
https://doaj.org/article/671b89512c58418ba2af616a3d5e598d
Autor:
Jia Guo, Tanghao Liu, Mingjie Li, Chao Liang, Kaiyang Wang, Guo Hong, Yuxin Tang, Guankui Long, Siu-Fung Yu, Tae-Woo Lee, Wei Huang, Guichuan Xing
Publikováno v:
Nature Communications, Vol 11, Iss 1, Pp 1-8 (2020)
Laser pulse multiplication is desired in many applications but has been challenging to realize by gain medium. Here Guo et al. achieve double-pulsed stimulated emission in quasi-2D metal-halide perovskites due to the two-channel carrier funneling eff
Externí odkaz:
https://doaj.org/article/c9cee78133944c9a8e99ac020072e5f8
Autor:
Wei Gao, Siu Fung Yu
Publikováno v:
EcoMat, Vol 3, Iss 1, Pp n/a-n/a (2021)
Abstract Perovskite semiconductor has emerged as a promising laser gain medium; however, it is still a challenge to fabricate electrically pumped perovskite lasers due to the insufficient electrical‐to‐optical conversion efficiency. Here, the cur
Externí odkaz:
https://doaj.org/article/0b9d44b88c5042ea974105e6feefc59d
Autor:
Ziyang Li, Haihong Guo, Zhenzhen Cui, Guilong Yan, Xue Yu, Siu Fung Yu, Shaoqing Wang, Xuhui Xu, Ting Wang, Longchao Guo, Wei Gao, Jianbei Qiu, Qianrui Ma, Bitao Liu, Liang Xiu, Hao Zhang
Publikováno v:
Journal of Rare Earths. 40:1173-1180
Red emitting phosphor plays a significant role in accelerating the improvement of illumination quality for white light emitting diodes (WLEDs). In this work, by using solid-state reaction method, an efficient novel Ba2LuNbO6:Eu3+ phosphor with double
Autor:
Yifan Chen, Jun Yin, Qi Wei, Chenhao Wang, Xiaoting Wang, Hui Ren, Siu Fung Yu, Osman M. Bakr, Omar F. Mohammed, Mingjie Li
Publikováno v:
Nature Photonics. 16:485-490
Autor:
Xian Chen, Limin Jin, Wei Kong, Tianying Sun, Wenfei Zhang, Xinhong Liu, Jun Fan, Siu Fung Yu, Feng Wang
Publikováno v:
Nature Communications, Vol 7, Iss 1, Pp 1-6 (2016)
A general approach to maximize upconversion luminescence in stoichiometric lanthanide lattices is lacking. Here, Chen et al. report a NaYbF4:Tm lattice and demonstrate fine-tuning of energy migration by controlling dimensions of the crystal lattice,
Externí odkaz:
https://doaj.org/article/9f21b76ec3384c34b6fee6c71f0a356a
Autor:
Mojun Chen, Zhiwen Zhou, Shiqi Hu, Nan Huang, Heekwon Lee, Yu Liu, Jihyuk Yang, Xiao Huan, Zhaoyi Xu, Sixi Cao, Xiang Cheng, Ting Wang, Siu Fung Yu, Barbara Pui Chan, Jinyao Tang, Shien‐Ping Feng, Ji Tae Kim
Publikováno v:
Advanced Functional Materials. 33
Autor:
Xue Yu, Haihong Guo, Longchao Guo, Jianbei Qiu, Siu Fung Yu, Xuhui Xu, Qianrui Ma, Hao Zhang, Zhenzhen Cui, Shaoqing Wang, Ting Wang, Ziyang Li, Wei Gao, Bitao Liu, Liang Xiu
Publikováno v:
Inorganic Chemistry. 60:11616-11625
Wearable biosensing and food safety inspection devices with high thermal stability, high brightness, and broad near-infrared (NIR) phosphor-converted light-emitting diodes (pc-LEDs) could accelerate the next-generation NIR light applications. In this
Publikováno v:
ACS nano. 16(8)
Two-dimensional Ruddlesden-Popper perovskites (RPPs) with multiple quantum well-like structures, strong excitonic quantum confinement, and high stability are promising optical gain media. However, the lasing from such material with a small number of
Autor:
Safayet Ahmed, Ping Kwong Cheng, Junpeng Qiao, Wei Gao, Ahmed Mortuza Saleque, Md. Nahian Al Subri Ivan, Ting Wang, Tawsif Ibne Alam, Sumaiya Umme Hani, Zong Liang Guo, Siu Fung Yu, Yuen Hong Tsang
Publikováno v:
ACS nano. 16(8)
The nonlinear optical (NLO) properties of two-dimensional (2D) materials are fascinating for fundamental physics and optoelectronic device development. However, relatively few investigations have been conducted to establish the combined NLO activitie