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dc.contributor.author문수산나en_US
dc.date.accessioned2014-12-01T11:47:53Z-
dc.date.available2014-12-01T11:47:53Z-
dc.date.issued2012en_US
dc.identifier.otherOAK-2014-00923en_US
dc.identifier.urihttp://postech.dcollection.net/jsp/common/DcLoOrgPer.jsp?sItemId=000001217246en_US
dc.identifier.urihttp://oasis.postech.ac.kr/handle/2014.oak/1425-
dc.descriptionMasteren_US
dc.description.abstractQuantum dots, one of the recently attracted nanomaterials, have many fascinating properties, so there are many applications using quantum dots, including biological and optoelectronic devices, and energy devices. However, a serious limitation of these quantum dots is the necessary use of toxic heavy metals. Carbon nanodot can be a good candidate to replace toxic metal-based or noble metal-based quantum dots currently in use. Here, we synthesized carbon nanodots via facile bottom-up methods, including hydrothermal, ultrasonication-assisted, and microwave-assisted synthesis. Furthermore, we made an effort to enhance the light absorption ability by controlling the reaction time to modify the size of synthesized carbon nanodots.In case of hydrothermal synthesis, synthesized carbon nanodots were too large (more than 80 nm) and had too broad size distribution. Using ultrasonication-assisted synthesis, we could prepare small-sized, mono-disperse carbon nanodots, but due to the use of acid solution, further process to remove it was required. Using Microwave-assisted synthesis, we could synthesize small sized, mono-disperse carbon nanodots, and by controlling the reaction time, we could modify their size and as a result absorption edge was shifted. Surface-passivated carbon nanodots were obtained by just one-step process within 10 mininutes.en_US
dc.languageengen_US
dc.publisher포항공과대학교en_US
dc.rightsBY_NC_NDen_US
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/2.0/kren_US
dc.title글루코오즈 수용액을 이용한 카본 나노닷의 합성에 관한 연구en_US
dc.title.alternativeSynthesis of Carbon Nanodots with Glucose Solutionen_US
dc.typeThesisen_US
dc.contributor.college일반대학원 화학공학과en_US
dc.date.degree2012- 2en_US

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