中国激光, 2021, 48 (8): 0802025, 网络出版: 2021-03-31
激光熔融SiO2基底上银纳米颗粒分子动力学仿真 下载: 1284次
Molecular Dynamics Simulation of Laser Melting of Sliver Nanoparticles on SiO2 Substrate
图 & 表
图 1. SiO2基底上Ag纳米颗粒的原子模型。(a) Ag纳米颗粒;(b) SiO2基底;(c)颗粒与衬底的装配
Fig. 1. Atom models of Ag nanoparticle on SiO2 substrate. (a) Ag nanoparticle; (b) SiO2 substrate; (c) assembly of Ag nanoparticle on SiO2 substrate
图 2. 激光辐照导致的不同温度下单个银纳米颗粒的熔化原子构型变化。(a)400 K;(b)600 K;(c)800 K;(d)1000 K;(e)1200 K;(f)1500 K
Fig. 2. Snapshots for atomic melting configuration of single laser-irradiated Ag nanoparticle at different temperatures.(a) 400 K; (b) 600 K; (c) 800 K; (d) 1000 K; (e) 1200 K; (f) 1500 K
图 3. 不同温度下Ag纳米颗粒与SiO2之间接触参数和吸附能的变化。(a)接触长度与接触角;(b)吸附能
Fig. 3. Contact parameters and adhesion energies between Ag nanoparticle and SiO2 substrate at different temperatures. (a) Contact length and contact angle; (b) adhesion energy
图 4. 不同激光加热时间下两个Ag纳米颗粒的熔化原子构型。(a)0;(b)0.6 ps;(c)2 ps;(d)4 ps;(e)6 ps;(f)8 ps;(g)10 ps;(h)12 ps;(i)18 ps;(j)30 ps;(k)34 ps;(l)40 ps
Fig. 4. Snapshots for atomic melting configuration of two Ag nanoparticles under different laser heating time. (a) 0;(b) 0.6 ps; (c) 2 ps; (d) 4 ps; (e) 6 ps; (f) 8 ps; (g) 10 ps; (h) 12 ps; (i) 18 ps; (j) 30 ps; (k) 34 ps; (l) 40 ps
图 5. 激光加热过程中两个Ag纳米颗粒的非键能
Fig. 5. Non-bond energy of two Ag nanoparticles during laser heating
图 6. 激光辐照导致的不同温度下两个银纳米颗粒的熔化原子构型变化。(a)400 K;(b)600 K;(c)800 K;(d)1000 K;(e)1200 K;(f)1500 K
Fig. 6. Snapshots for atomic melting configuration of two laser-irradiated Ag nanoparticles at different temperatures. (a) 400 K; (b) 600 K; (c) 800 K; (d) 1000 K; (e) 1200 K; (f) 1500 K
侯超剑, 王根旺, 王扬, 张宏志, 杨立军. 激光熔融SiO2基底上银纳米颗粒分子动力学仿真[J]. 中国激光, 2021, 48(8): 0802025. Chaojian Hou, Genwang Wang, Yang Wang, Hongzhi Zhang, Lijun Yang. Molecular Dynamics Simulation of Laser Melting of Sliver Nanoparticles on SiO2 Substrate[J]. Chinese Journal of Lasers, 2021, 48(8): 0802025.