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Effect of Preparation Processes on Structural Thermal Stability and Collision Energy Dissipation of Common Antirelaxation Coatings on Quartz Substrates.
He, Xinxin; Liu, Xiaoya; Tang, Jun; Dong, Haifeng; Sugawara, Yasuhiro; Li, Yan Jun; Ma, Zongmin; Liu, Jun.
Afiliación
  • He X; School of Instrument and Electronics, North University of China, Taiyuan, Shanxi 030051, People's Republic of China.
  • Liu X; National Key Laboratory for Dynamic Measurement Technology, North University of China, Taiyuan 030051, People's Republic of China.
  • Tang J; School of Instrument and Electronics, North University of China, Taiyuan, Shanxi 030051, People's Republic of China.
  • Dong H; National Key Laboratory for Dynamic Measurement Technology, North University of China, Taiyuan 030051, People's Republic of China.
  • Sugawara Y; National Key Laboratory for Dynamic Measurement Technology, North University of China, Taiyuan 030051, People's Republic of China.
  • Li YJ; School of Semiconductor and Physics, North University of China, Taiyuan 030051, People's Republic of China.
  • Ma Z; School of Instrumentation Science and Optoelectronics Engineering, Beihang University, Beijing 100191, People's Republic of China.
  • Liu J; Department of Applied Physics, Osaka University, 2-1 Yamada-Oka, Suita, Osaka 565-0871, Japan.
Langmuir ; 39(36): 12740-12753, 2023 Sep 12.
Article en En | MEDLINE | ID: mdl-37651224
ABSTRACT
Paraffin and octadecyltrichlorosilane (OTS) coatings can alleviate collisions between alkali-metal atoms and cell walls and then prolong the atomic spin-polarization lifetime. The surface structure and collision effects of these antirelaxation coatings, as well as the methods to avoid antirelaxation invalidity, have been the focus of researchers. This study investigated the thermolability of coating surface structure and the collision interactions between alkali metal atoms and coatings, considering the influence of various coating preparation factors, where this collision interaction is indirectly analyzed by measuring the collision energy dissipation between an atomic force microscopy (AFM) probe and the atoms on the coating surface. We found that appropriate evaporation time, carbochain length, and postannealing process can enhance the thermostability of the paraffin coating and eliminate its morphological defects. Furthermore, the OTS/water concentration, the soaking time, and the type of solvent have different levels of influence on the cluster formation and the thermostability of the OTS coatings. Moreover, the antirelaxation performance of coatings has been shown to be characterized by counting the energy dissipated when the AFM probe collides with the antirelaxation coating, replacing the conventional light-atom interaction- based method for measuring the relaxation characteristics, but requiring specific coating preparation factors to be maintained.

Texto completo: 1 Colección: 01-internacional Banco de datos: MEDLINE Idioma: En Revista: Langmuir Asunto de la revista: QUIMICA Año: 2023 Tipo del documento: Article

Texto completo: 1 Colección: 01-internacional Banco de datos: MEDLINE Idioma: En Revista: Langmuir Asunto de la revista: QUIMICA Año: 2023 Tipo del documento: Article