Cation exchange synthesis of uniform PbSe/PbS core/shell tetra-pods and their use as near-infrared photodetectors

Nanoscale ◽  
2016 ◽  
Vol 8 (29) ◽  
pp. 14203-14212 ◽  
Author(s):  
N. Mishra ◽  
B. Mukherjee ◽  
G. Xing ◽  
S. Chakrabortty ◽  
A. Guchhait ◽  
...  
Keyword(s):  
Cation Exchange ◽  
Near Infrared ◽  
Infrared Photodetectors ◽  
Core Shell

scholarly journals Au@HgxCd1-xTe core@shell nanorods by sequential aqueous cation exchange for near-infrared photodetectors

Nano Energy ◽  
2019 ◽  
Vol 57 ◽  
pp. 57-65 ◽  
Author(s):  
Xinyuan Li ◽  
Muhammad Ahsan Iqbal ◽  
Meng Xu ◽  
Yi-Chi Wang ◽  
Hongzhi Wang ◽  
...  
Keyword(s):  
Cation Exchange ◽  
Near Infrared ◽  
Infrared Photodetectors ◽  
Core Shell

Core/shell-structured upconversion nanophosphor and cadmium-free quantum-dot bilayer-based near-infrared photodetectors

2015 ◽  
Vol 40 (21) ◽  
pp. 4959 ◽  
Author(s):  
A-Ra Hong ◽  
Jungyoon Kim ◽  
Su Yeon Kim ◽  
Seong-Il Kim ◽  
Kwangyeol Lee ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Near Infrared ◽  
Infrared Photodetectors ◽  
Core Shell ◽  
Upconversion Nanophosphor

Silicon/Perovskite Core–Shell Heterojunctions with Light-Trapping Effect for Sensitive Self-Driven Near-Infrared Photodetectors

2018 ◽  
Vol 10 (33) ◽  
pp. 27850-27857 ◽  
Author(s):  
Jia-Qin Liu ◽  
Yang Gao ◽  
Guo-An Wu ◽  
Xiao-Wei Tong ◽  
Chao Xie ◽  
...  
Keyword(s):  
Near Infrared ◽  
Light Trapping ◽  
Infrared Photodetectors ◽  
Core Shell ◽  
Trapping Effect

scholarly journals Correction to Self-Assembly Growth of In-Rich InGaAs Core–Shell Structured Nanowires with Remarkable Near-Infrared Photoresponsivity

Nano Letters ◽  
2019 ◽  
Vol 19 (3) ◽  
pp. 2188-2188
Author(s):  
Chen Zhou ◽  
Xu-Tao Zhang ◽  
Kun Zheng ◽  
Ping-Ping Chen ◽  
Wei Lu ◽  
...  
Keyword(s):  
Self Assembly ◽  
Near Infrared ◽  
Core Shell

High-performance near-infrared photodetectors based on C3N quantum dots integrated with single-crystal graphene

2021 ◽  
Author(s):  
Yun Zhao ◽  
Xiaoqiang Feng ◽  
Menghan Zhao ◽  
Xiaohu Zheng ◽  
Zhiduo Liu ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Electric Field ◽  
Single Crystal ◽  
High Performance ◽  
Near Infrared ◽  
Fast Response ◽  
Local Electric Field ◽  
Infrared Photodetectors ◽  
Photocurrent Response

Employing C3N QD-integrated single-crystal graphene, photodetectors exhibited a distinct photocurrent response at 1550 nm. The photocurrent map revealed that the fast response derive from C3N QDs that enhanced the local electric field near graphene.

Structure and microstructure of near infrared-absorbing Au–Au2S nanoparticles

2007 ◽  
Vol 22 (9) ◽  
pp. 2531-2538 ◽  
Author(s):  
Mei Chee Tan ◽  
Jackie Y. Ying ◽  
Gan Moog Chow
Keyword(s):  
Optical Properties ◽  
Surface Segregation ◽  
Near Infrared ◽  
Small Degree ◽  
Core Shell ◽  
Shell Microstructure ◽  
Absorption Bands ◽  
Interfacial Effects ◽  
Nir Absorption ◽  
Structure And Microstructure

Near infrared (NIR) absorbing nanoparticles synthesized by the reduction of HAuCl4 with Na2S exhibited absorption bands at ∼530 nm, and in the NIR region of 650–1100 nm. The NIR optical properties were not found to be related to the earlier proposed Au2S–Au core-shell microstructure in previous studies. From a detailed study of the structure and microstructure of as-synthesized particles in this work, S-containing, Au-rich, multiply-twinned nanoparticles were found to exhibit NIR absorption. They consisted of amorphous AuxS (where x = 2), mostly well mixed within crystalline Au, with a small degree of surface segregation of S. Therefore, NIR absorption was likely due to interfacial effects on particle polarization from the introduction of AuxS into Au particles, and not the dielectric confinement of plasmons associated with a core-shell microstructure.

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