화학공학소재연구정보센터
학회 한국공업화학회
학술대회 2019년 봄 (05/01 ~ 05/03, 부산 벡스코(BEXCO))
권호 23권 1호
발표분야 디스플레이_포스터
제목 Polarized Upconversion Emission from One-dimensional Ultrathin YF3:Yb/Er Nanostructures
초록 Upconversion (UC) nanostructures have attracted enormous research interests due to their unique optical properties underpinning their promising applications in various fields. In the present study, ultrathin YF3 nanostructures such as nanowires and nanobelts are synthesized using an oleylamine assisted colloidal chemical strategy. Two-dimensional lamellar assemblies of YF3 clusters are observed to be crucial intermediates in the growth process, which transform to nanobelts and nanowires depending on the reaction temperature. Both ultrathin nanowires and nanobelts exhibited an identical UC emission profiles comprising three emission bands centered at 545 nm (green), 660 nm (red) and 810 nm (infrared). The polarized UC emission studies on the domain of perfectly aligned assembly of parallel ultrathin YF3:Yb/Er nanowires revealed 0.32, 0.28 and 0.50 polarization degrees for green, red and infrared emission peaks, respectively. 2019년 한국교통대의 지원을 받아 수행하였음.
저자 GUNTAKRINDA MURALI, Chundi Seshendra Reddy, 권빈희, 박성민, 인인식
소속 한국교통대
키워드 YF3:Yb/Er; Ultrathin nanostructures; Growth mechanism; Upconversion emission; Polarization
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