Ultrasensitive PbS-Quantum-Dot Photodetectors for Visible-Near-Infrared Light Through Surface Atomic-Ligand Exchange

2015 ◽  
Vol 32 (12) ◽  
pp. 1102-1109 ◽  
Author(s):  
Longfei Mi ◽  
Yongqiang Yu ◽  
Hui Wang ◽  
Yan Zhang ◽  
Xudong Yao ◽  
...  
RSC Advances ◽  
2015 ◽  
Vol 5 (67) ◽  
pp. 54109-54114 ◽  
Author(s):  
Long Yan ◽  
Xinyu Shen ◽  
Yu Zhang ◽  
Tieqiang Zhang ◽  
Xiaoyu Zhang ◽  
...  

The near-infrared light-emitting diodes using PbSe quantum dots were fabricated with the highest external quantum efficiency of 2.52%, which is comparable to those commercial InGaAsP LEDs and visible quantum dot electroluminescence LEDs.


2016 ◽  
Vol 10 (4) ◽  
pp. 253-257 ◽  
Author(s):  
Xiwen Gong ◽  
Zhenyu Yang ◽  
Grant Walters ◽  
Riccardo Comin ◽  
Zhijun Ning ◽  
...  

2019 ◽  
Vol 44 (2) ◽  
pp. 463 ◽  
Author(s):  
Qiwei Xu ◽  
Lingju Meng ◽  
Tao Zeng ◽  
Kaustubh Sinha ◽  
Carson Dick ◽  
...  

2018 ◽  
Vol 65 (2) ◽  
pp. 577-583 ◽  
Author(s):  
Shuangyi Zhao ◽  
Xiangkai Liu ◽  
Wei Gu ◽  
Xiaoyong Liang ◽  
Zhenyi Ni ◽  
...  

2020 ◽  
Vol 59 (11) ◽  
pp. 110906
Author(s):  
Juan Shen ◽  
Yong Ren ◽  
Xinxin Zhu ◽  
Min Mao ◽  
Quan Zhou ◽  
...  

Author(s):  
Xiaowei Luan ◽  
Yongchun Pan ◽  
Yanfeng Gao ◽  
Yujun Song

Light has witnessed the history of mankind and even the universe. It is of great significances to the life of human society, contributing to energy, agriculture, communication, and much more....


2021 ◽  
Author(s):  
Fiaz Ahmed ◽  
John Hardin Dunlap ◽  
Perry J. Pellechia ◽  
Andrew Greytak

A highly stable p-type PbS-QDs ink is prepared using a single-step biphasic ligand exchange route, overcoming instability encountered in previous reports. Chemical characterization of the ink reveals 3-mercaptopriopionic acid (MPA)...


Pharmaceutics ◽  
2021 ◽  
Vol 13 (1) ◽  
pp. 52
Author(s):  
Atanu Naskar ◽  
Sohee Lee ◽  
Kwang-sun Kim

Antibiotic therapy is the gold standard for bacterial infections treatment. However, the rapid increase in multidrug-resistant (MDR) bacterial infections and its recent use for secondary bacterial infections in many COVID-19 patients has considerably weakened its treatment efficacy. These shortcomings motivated researchers to develop new antibacterial materials, such as nanoparticle-based antibacterial platform with the ability to increase the chances of killing MDR strains and prevent their drug resistance. Herein, we report a new black phosphorus (BP)-based non-damaging near-infrared light-responsive platform conjugated with ZnO and Au nanoparticles as a synergistic antibacterial agent against Staphylococcus aureus species. First, BP nanosheets containing Au nanoparticles were assembled in situ with the ZnO nanoparticles prepared by a low-temperature solution synthesis method. Subsequently, the antibacterial activities of the resulting Au–ZnO–BP nanocomposite against the non-resistant, methicillin-resistant, and erythromycin-resistant S. aureus species were determined, after its photothermal efficacy was assessed. The synthesized nanocomposite exhibited excellent anti-S. aureus activity and good photothermal characteristics. The non-resistant S. aureus species did not produce drug-resistant bacteria after the treatment of multiple consecutive passages under the pressure of the proposed nanoantibiotic, but rapidly developed resistance to erythromycin. This work clearly demonstrates the excellent photothermal antibacterial properties of Au–ZnO–BP nanocomposite against the MDR S. aureus species.


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