Please use this identifier to cite or link to this item:
http://hdl.handle.net/10397/62009
DC Field | Value | Language |
---|---|---|
dc.contributor | Department of Applied Physics | - |
dc.creator | Qian, F | - |
dc.creator | Li, X | - |
dc.creator | Tang, L | - |
dc.creator | Lai, SK | - |
dc.creator | Lu, C | - |
dc.creator | Lau, SP | - |
dc.date.accessioned | 2016-12-19T08:58:10Z | - |
dc.date.available | 2016-12-19T08:58:10Z | - |
dc.identifier.issn | 2158-3226 (online) | - |
dc.identifier.uri | http://hdl.handle.net/10397/62009 | - |
dc.language.iso | en | en_US |
dc.publisher | American Institute of Physics | en_US |
dc.rights | © 2016 Author(s).All article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). | en_US |
dc.rights | The following publication F. Qian et al., AIP Advances 6, 075116 (2016) is available at https://dx.doi.org/10.1063/1.4959906 | en_US |
dc.title | Potassium doping : tuning the optical properties of graphene quantum dots | en_US |
dc.type | Journal/Magazine Article | en_US |
dc.identifier.volume | 6 | - |
dc.identifier.issue | 7 | - |
dc.identifier.doi | 10.1063/1.4959906 | - |
dcterms.abstract | Doping with hetero-atoms is an effective way to tune the properties of graphene quantum dots (GQDs). Here, potassium-doped GQDs (K-GQDs) are synthesized by a one-pot hydrothermal treatment of sucrose and potassium hydroxide solution. Optical properties of the GQDs are altered as a result of K-doping. The absorption peaks exhibit a blue shift. Multiple photoluminescence (PL) peaks are observed as the excitation wavelength is varied from 380 nm to 620 nm. New energy levels are introduced into the K-GQDs and provide alternative electron transition pathways. The maximum PL intensity of the K-GQDs is obtained at an excitation wavelength of 480 nm which is distinct from the undoped GQDs (375 nm). The strong PL of the K-GQDs at the longer emission wavelengths is expected to make K-GQDs more suitable for bioimaging and optoelectronic applications. | - |
dcterms.accessRights | open access | en_US |
dcterms.bibliographicCitation | AIP advances, 2016, v. 6, no. 7, 75116, p. 075116-1-075116-8 | - |
dcterms.isPartOf | AIP advances | - |
dcterms.issued | 2016 | - |
dc.identifier.isi | WOS:000382403600041 | - |
dc.identifier.scopus | 2-s2.0-84979788616 | - |
dc.identifier.ros | 2016005786 | - |
dc.identifier.rosgroupid | 2016005533 | - |
dc.description.ros | 2016-2017 > Academic research: refereed > Publication in refereed journal | - |
dc.description.validate | 201804_a bcma | - |
dc.description.oa | Version of Record | en_US |
dc.identifier.FolderNumber | OA_IR/PIRA | en_US |
dc.description.pubStatus | Published | en_US |
Appears in Collections: | Journal/Magazine Article |
Files in This Item:
File | Description | Size | Format | |
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Qian_Potassium_Doping_Tuning_Optical.pdf | 5.31 MB | Adobe PDF | View/Open |
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