实验新课程应注意的几个问题

新课程是素质教育从形式走向实质、从探索走向实施的标志，它真正体现了教育是为了人的发展，也正是在教学实践中才真正感受到新事物与旧事物的矛盾，一方面努力想体现新课程理念与标准，另一方面却又遭遇传统教育观念和评价方式的抨击．有过“秀才遇到兵，有理说不清”的烦恼，也有过被带有浓厚的传统技能技巧测试造成的尴尬，     

Improvement of Performance of HfS_2 Transistors Using a Self-Assembled Monolayer as Gate Dielectric

This work details a study based on HfS_(2 )transistors utilizing an n-octadecylphosphonic acid-based self-assembled monolayer(SAM)as the gate dielectric.The fabrication of the SAM-based two-dimensional(2D)material transistor is simple and can be used to improve the quality of the interface of air-sensitive 2D materials.In comparison to HfS_(2) transistors utilizing a conventional Al_2O_(3) gate insulator by atomic layer deposition,HfS_(2) transistors utilizing an SAM as the gate dielectric can reduce the operation region from 4 V to 2 V,enhance the field-effect mobility from 0.03 cm~2/Vs to 0.75 cm~2/Vs,improve the sub-threshold swing from 404 m V/dec to 156 m V/dec,and optimize the hysteresis to 0.03 V,thus demonstrating improved quality of the semiconductor/insulator interface.