A novel detection approach for serotonin by graphene quantum dots/two-dimensional (2D) hexagonal boron nitride nanosheets with molecularly imprinted polymer

2018 ◽  
Vol 458 ◽  
pp. 648-655 ◽  
Author(s):  
Mehmet Lütfi Yola ◽  
Necip Atar
Keyword(s):  
Quantum Dots ◽  
Boron Nitride ◽  
Molecularly Imprinted Polymer ◽  
Hexagonal Boron Nitride ◽  
Graphene Quantum Dots ◽  
Two Dimensional ◽  
Imprinted Polymer ◽  
Molecularly Imprinted ◽  
Boron Nitride Nanosheets ◽  
Detection Approach

scholarly journals Blue emission at atomically sharp 1D heterojunctions between graphene and h-BN

2020 ◽  
Vol 11 (1) ◽  
Author(s):  
Gwangwoo Kim ◽  
Kyung Yeol Ma ◽  
Minsu Park ◽  
Minsu Kim ◽  
Jonghyuk Jeon ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Boron Nitride ◽  
Physical Properties ◽  
Hexagonal Boron Nitride ◽  
Graphene Quantum Dots ◽  
Blue Emission ◽  
Electronic States ◽  
Optoelectronic Property ◽  
Two Dimensional ◽  
One Dimensional

Abstract Atomically sharp heterojunctions in lateral two-dimensional heterostructures can provide the narrowest one-dimensional functionalities driven by unusual interfacial electronic states. For instance, the highly controlled growth of patchworks of graphene and hexagonal boron nitride (h-BN) would be a potential platform to explore unknown electronic, thermal, spin or optoelectronic property. However, to date, the possible emergence of physical properties and functionalities monitored by the interfaces between metallic graphene and insulating h-BN remains largely unexplored. Here, we demonstrate a blue emitting atomic-resolved heterojunction between graphene and h-BN. Such emission is tentatively attributed to localized energy states formed at the disordered boundaries of h-BN and graphene. The weak blue emission at the heterojunctions in simple in-plane heterostructures of h-BN and graphene can be enhanced by increasing the density of the interface in graphene quantum dots array embedded in the h-BN monolayer. This work suggests that the narrowest, atomically resolved heterojunctions of in-plane two-dimensional heterostructures provides a future playground for optoelectronics.

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