https://scholars.lib.ntu.edu.tw/handle/123456789/598364
標題: | Metallic Nanowire Coupled CsPbBr3 Quantum Dots Plasmonic Nanolaser | 作者: | Chen C.-W CHUN-WEI CHEN et al. |
關鍵字: | Ag nanowires;CsPbBr 3 quantum dots;perovskite;plasmonic lasers;plasmonic waveguides;Bromine compounds;Full width at half maximum;Lead compounds;Nanocrystals;Nanowires;Perovskite;Plasmons;Pumping (laser);Quantum dot lasers;Semiconductor quantum dots;Silver;Surface plasmon resonance;Amplified spontaneous emissions;Dual-wavelength lasing;Fundamental studies;Light-matter interactions;Localized surface plasmon resonance;Plasmonic waveguides;Poly vinyl pyrrolidone;Semiconductor nanowire;Waveguides | 公開日期: | 2021 | 卷: | 31 | 期: | 28 | 來源出版物: | Advanced Functional Materials | 摘要: | Plasmonic nanolasers provide a valuable opportunity for expanding sub-wavelength applications. Due to the potential of on-chip integration, semiconductor nanowire (NW)-based plasmonic nanolasers that support the waveguide mode attract a high level of interest. To date, perovskite quantum dots (QDs) based plasmonic lasers, especially nanolasers that support plasmonic-waveguide mode, are still a challenge and remain unexplored. Here, metallic NW coupled CsPbBr3 QDs plasmonic-waveguide lasers are reported. By embedding Ag NWs in QDs film, an evolution from amplified spontaneous emission with a full width at half maximum (FWHM) of 6.6?nm to localized surface plasmon resonance (LSPR) supported random lasing is observed. When the pump light is focused on a single Ag NW, a QD-NW coupled plasmonic-waveguide laser with a much narrower emission peak (FWHM = 0.4?nm) is realized on a single Ag NW with the uniform polyvinylpyrrolidone layer. The QDs serve as the gain medium while the Ag NW serves as a resonant cavity and propagating plasmonic lasing modes. Furthermore, by pumping two Ag NWs with different directions, a dual-wavelength lasing switch is realized. The demonstration of metallic NW coupled QDs plasmonic nanolaser would provide an alternative approach for ultrasmall light sources as well as fundamental studies of light matter interactions. ? 2021 Wiley-VCH GmbH. |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85109355990&doi=10.1002%2fadfm.202102375&partnerID=40&md5=9079144b20b403827a3cd18c89d637a7 https://scholars.lib.ntu.edu.tw/handle/123456789/598364 |
ISSN: | 1616301X | DOI: | 10.1002/adfm.202102375 |
顯示於: | 材料科學與工程學系 |
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