Numerical Investigation of the Stimulated Growth of Single-Crystal Fibers by Point-Effect-Induced Fluid Dynamics

Funding Agencies|Natural Science Foundation of Shandong Province; Fundamental Research Funds of Shandong University; National Natural Science Foundation of China; Primary Research & Development Plan of Shandong Province; [61975154]; [2017CXGC0413]
Using molecular dynamics analysis and a two-component diffusion model that accounts for the time-dependent crystal surface chemical reaction, we show by extensive numerical simulations that the recently observed prismatic facet growth suppression in single-crystal fibers is the combined action of self-shielding by crystal surface selectivity and self-channeling arising from a point effect due to fibers small diameters and large aspect ratios. We further show that the self-channeling leads to a pyramidal-face-aiming solute flow, resulting in accelerated single-crystal fiber growth. This mesoscopic stimulated matter growth acceleration theory can satisfactorily explain all experimental results reported to date. This new crystal fiber growth technology opens a realm of application possibilities for single-crystal fiber architectures in chip-size photonics.

Fang, ChangfengShandong Univ, Peoples R China (författare)
Zhu, ChengjieSoochow Univ, Peoples R China (författare)
Sun, PengShandong Univ, Peoples R China (författare)
Li, Yvonne Y.Harvard Med Sch, MA 02215 USA (författare)
Durbeej, Bo,Professor,1973-Linköpings universitet,Bioinformatik,Tekniska fakulteten(Swepub:liu)bodu88 (författare)
Zhao, XianShandong Univ, Peoples R China (författare)
Deng, LuShandong Univ, Peoples R China (författare)
Shandong Univ, Peoples R ChinaSoochow Univ, Peoples R China (creator_code:org_t)

Ingår i:Crystal Growth & Design: AMER CHEMICAL SOC22:12, s. 7031-70391528-74831528-7505

Av författaren/redakt...: Lv, Jiezhao; Fang, Changfeng; Zhu, Chengjie; Sun, Peng; Li, Yvonne Y.; Durbeej, Bo, Pro ...; visa fler...; Zhao, Xian; Deng, Lu; visa färre...

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