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Carbon nanodots (C-dots) with broad emissions when excitation wavelength changes in a large region are suitable for a broad range of applications, including optical down-conversion devices, bioimaging, and biosensors by selecting different excitation wavelengths without changing their structure. Herein, C-dots exhibiting broad photoluminescence from blue to green regions with strong excitation-dependence...
Liquid-assisted ablation of solids by femtosecond laser pulses has proved to be an efficient tool for highly precise microfabrication, which evokes numerous research interests in recent years. In this paper, we systematically investigate the interaction of femtosecond laser pulses with silicon wafer in water, alcohol, and as a comparison, in air. After producing a series of multiple-shot craters on...
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