期刊
IEICE TRANSACTIONS ON ELECTRONICS
卷 E104C, 期 8, 页码 390-393出版社
IEICE-INST ELECTRONICS INFORMATION COMMUNICATION ENGINEERS
DOI: 10.1587/transele.2020ECS6027
关键词
photoacoustic imaging; laser process; semiconductor nanoparticle and quantum dot
资金
- JSPS KAKENHI
- Collaborative Research Project of Materials & Structures Laboratory (Tokyo Tech.)
Copper sulfide nanoparticles were successfully prepared via laser ablation in liquid. The size of the nanoparticles decreased and absorbance increased with the increase in laser fluence, while the ratio of Cu and S remained constant.
Copper sulfide nanoparticles were successfully prepared by laser ablation in liquid. CuS powders in deionized water were irradiated with nanosecond-pulsed laser (Nd:YAG, SHG) to prepare nanoparticles. Prepared nanoparticles were investigated by scanning electron microscopy (SEM), dynamic light scattering (DLS) and fluorospectrometer. According to the results of SEM and DLS, the primary and secondary particle size was decreased with the increase in laser fluence of laser ablation in liquid. The ratio of Cu and S of prepared nanoparticles were not changed. The absorbance of prepared copper sulfide nanoparticles in water was increased with the increase in laser fluence.
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