期刊
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
卷 134, 期 30, 页码 12394-12397出版社
AMER CHEMICAL SOC
DOI: 10.1021/ja3050458
关键词
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资金
- NSF of China [90923014, 10974050]
- National Basic Research Program of China [2012CB932703]
- Research Fund for the Doctoral Program of Higher Education [20110161110034]
- Aid Program for Science and Technology Innovative Research Team in Higher Educational Institutions of Hunan Province
Nanoscale dual-wavelength lasers are attractive for their potential applications in highly integrated photonic devices. Here we report the growth of nanoribbon lateral heterostructures made of a CdSxSe1-x central region with epitaxial CdS lateral sides using a multistep thermal evaporation route with a moving source. Under laser excitation, the emission of these ribbons indicates sandwich-like structures along the width direction, with characteristic red emission in the center and green emission at both edges. More importantly, dual-wavelength lasing with tunable wavelengths is demonstrated at room temperature based on these single-nanoribbon heterostructures for the first time. These achievements represent a significant advance in designing nanoscale dual-wavelength lasers and have the potential to open up new and exciting opportunities for diverse applications in integrated photonics, optoelectronics, and sensing.
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