Sökning: WFRF:(Chiou Jau Wern) > (2016) > Nonlinear bandgap o...
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000 | 03522naa a2200601 4500 | |
001 | oai:DiVA.org:kth-192381 | |
003 | SwePub | |
008 | 160912s2016 | |||||||||||000 ||eng| | |
024 | 7 | a https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-1923812 URI |
024 | 7 | a https://doi.org/10.1016/j.carbon.2016.06.0912 DOI |
040 | a (SwePub)kth | |
041 | a engb eng | |
042 | 9 SwePub | |
072 | 7 | a ref2 swepub-contenttype |
072 | 7 | a art2 swepub-publicationtype |
100 | 1 | a Wang, Bo-Yao4 aut |
245 | 1 0 | a Nonlinear bandgap opening behavior of BN co-doped graphene |
264 | 1 | b Elsevier,c 2016 |
338 | a print2 rdacarrier | |
500 | a QC 20160913 | |
520 | a We have demonstrated a nonlinear behavior for the bandgap opening of doped graphene by controlling the concentration of B and N co-dopants. X-ray absorption and emission spectra reveal that the bandgap increases from 0 to 0.6 eV as the concentration of BN dopants is increased from 0 to 6%, while the bandgap closes when the doping concentration becomes 56%. This nonlinear behavior of bandgap opening of the BN-doped graphene depending on the BN concentrations is consistent with the valenceband photoemission spectroscopic measurements. The spatially resolved B, N and C K-edge scanning transmission x-ray microscopy and their x-ray absorption near- edge structure spectra all support the scenario of the development of h-BN-like domains at high concentrations of BN. Ab initio calculation, by taking into account of the strong correlation between the bandgap and the geometry/concentration of the dopant, has been performed with various BN-dopant nano-domains embedded in the graphene monolayer to verify the unique bandgap behavior. Based on the experimental measurements and ab initio calculation, we propose the progressive formation of a phase-separated zigzag-edged BN domain from BN quantum dots with increasing BN-dopant concentration to explain the extraordinary nonlinear behavior of bandgap opening of BN-doped graphene sheets. This study reveals a new way to engineer the bandgap of low-dimensional systems. | |
650 | 7 | a NATURVETENSKAPx Kemix Annan kemi0 (SwePub)104992 hsv//swe |
650 | 7 | a NATURAL SCIENCESx Chemical Sciencesx Other Chemistry Topics0 (SwePub)104992 hsv//eng |
653 | a Hexagonal Boron-Nitride | |
653 | a X-Ray Spectromicroscopy | |
653 | a Augmented-Wave Method | |
653 | a Electronic-Structures | |
653 | a Cluster-Analysis | |
653 | a Nitrogen | |
653 | a Gap | |
653 | a Growth | |
653 | a Photoluminescence | |
653 | a Spectroscopy | |
700 | 1 | a Wang, Hsiaotsu4 aut |
700 | 1 | a Chen, Ling-Yen4 aut |
700 | 1 | a Hsueh, Hung-Chung4 aut |
700 | 1 | a Li, Xin4 aut |
700 | 1 | a Guo, Jinghua4 aut |
700 | 1 | a Luo, Yiu KTH,Teoretisk kemi och biologi4 aut0 (Swepub:kth)u126eitw |
700 | 1 | a Chiou, Jau-Wern4 aut |
700 | 1 | a Wang, Wei-Hua4 aut |
700 | 1 | a Wang, Po-Hsiang4 aut |
700 | 1 | a Chen, Kuei-Hsien4 aut |
700 | 1 | a Chen, Yen-Chih4 aut |
700 | 1 | a Chen, Li-Chyong4 aut |
700 | 1 | a Chen, Chia-Hao4 aut |
700 | 1 | a Wang, Jian4 aut |
700 | 1 | a Pong, Way-Faung4 aut |
710 | 2 | a KTHb Teoretisk kemi och biologi4 org |
773 | 0 | t Carbond : Elsevierg 107, s. 857-864q 107<857-864x 0008-6223x 1873-3891 |
856 | 4 | u http://manuscript.elsevier.com/S0008622316305462/pdf/S0008622316305462.pdf |
856 | 4 8 | u https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-192381 |
856 | 4 8 | u https://doi.org/10.1016/j.carbon.2016.06.091 |
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