2D nanocomposite of hexagonal boron nitride nanoflakes and molybdenum disulfide quantum dots applied as the functional layer of all-printed flexible memory device

2018 ◽  
Vol 105 ◽  
pp. 28-35 ◽  
Author(s):  
Muhammad Muqeet Rehman ◽  
Ghayas Uddin Siddiqui ◽  
Mohammad Mutee ur Rehman ◽  
Hyun Bum Kim ◽  
Yang Hoi Doh ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Boron Nitride ◽  
Molybdenum Disulfide ◽  
Hexagonal Boron Nitride ◽  
Memory Device ◽  
Functional Layer

Tuning the electronic and optical properties of hexagonal boron-nitride nanosheet by inserting graphene quantum dots

2018 ◽  
Vol 32 (06) ◽  
pp. 1850084 ◽  
Author(s):  
Yi-Min Ding ◽  
Jun-Jie Shi ◽  
Min Zhang ◽  
Meng Wu ◽  
Hui Wang ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Optical Properties ◽  
Boron Nitride ◽  
Hexagonal Boron Nitride ◽  
Graphene Quantum Dots ◽  
Band Gaps ◽  
Hybrid Structures ◽  
Electronic And Optical Properties ◽  
Boron Nitride Nanosheet ◽  
Optoelectronic Nanodevices

It is difficult to integrate two-dimensional (2D) graphene and hexagonal boron-nitride (h-BN) in optoelectronic nanodevices, due to the semi-metal and insulator characteristic of graphene and h-BN, respectively. Using the state-of-the-art first-principles calculations based on many-body perturbation theory, we investigate the electronic and optical properties of h-BN nanosheet embedded with graphene dots. We find that C atom impurities doped in h-BN nanosheet tend to phase-separate into graphene quantum dots (QD), and BNC hybrid structure, i.e. a graphene dot within a h-BN background, can be formed. The band gaps of BNC hybrid structures have an inverse relationship with the size of graphene dot. The calculated optical band gaps for BNC structures vary from 4.71 eV to 3.77 eV, which are much smaller than that of h-BN nanosheet. Furthermore, the valence band maximum is located in C atoms bonded to B atoms and conduction band minimum is located in C atoms bonded to N atoms, which means the electron and hole wave functions are closely distributed around the graphene dot. The bound excitons, localized around the graphene dot, determine the optical spectra of the BNC hybrid structures, in which the exciton binding energies decrease with increase in the size of graphene dots. Our results provide an important theoretical basis for the design and development of BNC-based optoelectronic nanodevices.

Chemically Functionalized 2D/2D Hexagonal Boron Nitride/Molybdenum Disulfide Heterostructure for Enhancement of Lubrication Properties

2021 ◽  
pp. 152157
Author(s):  
Sangita Kumari ◽  
Ajay Chouhan ◽  
LN Siva Kumar Konathala ◽  
Om P. Sharma ◽  
Siddharth S. Ray ◽  
...  
Keyword(s):  
Boron Nitride ◽  
Molybdenum Disulfide ◽  
Hexagonal Boron Nitride ◽  
Lubrication Properties

Fabrication of Graphene Quantum Dots and Hexagonal Boron Nitride Nanocomposites for Fluorescent Cell Imaging

2013 ◽  
Vol 9 (10) ◽  
pp. 1679-1685 ◽  
Author(s):  
Juan Peng ◽  
Sheng Wang ◽  
Peng-Hui Zhang ◽  
Li-Ping Jiang ◽  
Jian-Jun Shi ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Boron Nitride ◽  
Cell Imaging ◽  
Hexagonal Boron Nitride ◽  
Graphene Quantum Dots ◽  
Fluorescent Cell

scholarly journals Etched graphene quantum dots on hexagonal boron nitride

2013 ◽  
Vol 103 (7) ◽  
pp. 073113 ◽  
Author(s):  
S. Engels ◽  
A. Epping ◽  
C. Volk ◽  
S. Korte ◽  
B. Voigtländer ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Boron Nitride ◽  
Hexagonal Boron Nitride ◽  
Graphene Quantum Dots

Origin of Improved Optical Quality of Monolayer Molybdenum Disulfide Grown on Hexagonal Boron Nitride Substrate

Small ◽  
2015 ◽  
Vol 12 (2) ◽  
pp. 198-203 ◽  
Author(s):  
Yi Wan ◽  
Hui Zhang ◽  
Wei Wang ◽  
Bowen Sheng ◽  
Kun Zhang ◽  
...  
Keyword(s):  
Boron Nitride ◽  
Molybdenum Disulfide ◽  
Hexagonal Boron Nitride ◽  
Optical Quality

Tuning the Schottky rectification in graphene-hexagonal boron nitride-molybdenum disulfide heterostructure

2018 ◽  
Vol 513 ◽  
pp. 677-683 ◽  
Author(s):  
Biao Liu ◽  
Yu-Qing Zhao ◽  
Zhuo-Liang Yu ◽  
Lin-Zhi Wang ◽  
Meng-Qiu Cai
Keyword(s):  
Boron Nitride ◽  
Molybdenum Disulfide ◽  
Hexagonal Boron Nitride
Sign in / Sign up

Export Citation Format

Share Document