The concepts in semiconductor physics courses are highly abstract, with numerous complex formulas and a vast knowledge system. The difficulty in memorizing and applying physical concepts and formulas flexibly leads to significant challenges for students, resulting in low learning enthusiasm. To address these issues, this paper proposes an innovative teaching philosophy of “simplifying complexity, transforming static into dynamic, expanding from points to surfaces, and delving from superficial to deep levels.” The overarching teaching philosophy is to “transform knowledge into experience, ” which means converting textbook knowledge into intuitive sensations and experiences. This allows students to appreciate the methods and joys of learning throughout their quest for knowledge. This approach changes the traditional monotonous and dull teaching model. Through experiential teaching, it enhances students’ initiative in learning and their ability to think independently, enabling them to gain a deeper understanding and mastery of semiconductor physics knowledge. It lays a solid foundation for students’ future research in semiconductor physics and technological development in this field.

Gas sensors based on organic semiconductor materials (OSCs) have garnered significant attention due to their cost-effectiveness and ability to operate efficiently at room temperature. However, the performance of these sensors is often constrained by the grain boundaries and defects inherent in polycrystalline films typically produced by conventional methods. In this study, a novel approach was developed for fabricating large-area porous organic single-crystal films. Hydrophobic lattice structures were engineered on hydrophilic substrate surfaces, facilitating the growth of 2,7-dioctyl[1]benzothieno[3,2-b][1]benzothiophene (C8-BTBT) molecules by micro-spacing sublimation with liquid crystal properties. These hydrophobic lattice structures function as thermal stress release sites during the film cooling process, enabling the formation of organic single-crystal films with precisely controlled pore locations and sizes. The resulting porous films demonstrate electrical properties on stripes with those achieved through growing on bare silicon substrates, yet exhibit enhanced sensitivity, faster response times, and a lower detection limit when used as active layers in gas sensors. This technique offers a promising pathway for advancing high-performance organic gas sensors toward industrial application.