返回
Electron-induced wettability modification
DOI:10.1103/PhysRevB.76.035437.png)
摘要
En 中文
The pioneering works by Lippmann [Ann. Chim. Phys. 5, 494 (1875)] and Frumkin [Actual. Sci. Ind. 373, 5 (1936)] reported on electrowetting phenomenon. It was shown that electric potential, applied to an interface between a conducting liquid droplet and solid surface, strengthened the wetting effect. Here, we describe pronounced decrease of wettability induced by a low-energy electron irradiation. We observe this effect in many materials of different origins. The proposed theory of this phenomenon explains the found growth of the hydrophobicity under an electron irradiation by decreasing solid/liquid and solid/vapor interfacial free energies, when reduction of the latter is always higher. This theory considers the droplet shape dependence on the incident electron charge density and energy of the incident electrons, as well as on the liquid and solid origins. The results of calculations are in a good agreement with the experimental data obtained for water droplet on amorphous silicon dioxide. The effect of the decrease of the wettability, induced by an electron irradiation at low incident charge, is completely reversible after subjection of the electron-irradiated material to ultraviolet illumination, which restores its initial wettability state.
Keyword:
SELF-ASSEMBLED MONOLAYERS
SILICON-DIOXIDE
LIQUID LENSES
THIN-FILMS
SURFACE
EMISSION
CHARGE
BEAM
ENERGY
IONS
期刊
IF:
3.7
论文数:
15.4W
被引数:
41.0W
机构
暂无机构信息
引用论文
Contractual Farming Arrangements, Quality Control, Incentives, and Distribution Failure in Kenya's Smallholder Horticulture: A Multivariate Probit Analysis契约农业安排、质量控制、激励机制以及肯尼亚小农户园艺业的分销失败:一项多元Probit分析
Agribusiness
IF0
Evaluation of different approaches to assess the surface tension of low-energy solids by means of contact angle measurements
LANGMUIR
IF3.9

