Hall effect 결과보고서
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Hall effect 결과보고서
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2023.04.06
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  • 1. Hall effect
    Hall effect 실험을 통해 Negative Type과 Positive Type 반도체의 홀 전압을 측정하여 Hall mobility, Carrier concentration, Hall coefficient를 계산하고 N-type과 P-type 반도체의 차이점을 살펴보고 Hall effect의 원리를 이해하고자 하였다. 실험 결과 자기장을 증가시킬수록 Hall voltage가 선형적으로 증가하였고, 전류값이 증가할수록 Hall voltage도 증가하였다. 또한 p-type의 Hall voltage는 양수, n-type의 Hall voltage는 음수로 나타나 각각의 전하 운반자가 양공과 전자임을 확인할 수 있었다. 계산한 Hall coefficient와 carrier density 값을 통해 p-type과 n-type 반도체의 특성을 비교할 수 있었다.
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  • 1. Hall effect
    The Hall effect is a fundamental physical phenomenon that has numerous applications in various fields of science and technology. It occurs when a current-carrying conductor is placed in a magnetic field, and a voltage difference is generated perpendicular to both the current and the magnetic field. This effect was discovered by Edwin Hall in 1879 and has since been extensively studied and utilized. The Hall effect has several important applications. In electronics, it is used in the design of Hall-effect sensors, which are used to measure magnetic fields, detect the position of moving objects, and even sense the speed of rotating shafts. These sensors are widely used in automotive, industrial, and consumer electronics applications. In materials science, the Hall effect is used to study the properties of semiconductors and other materials, providing information about the concentration and type of charge carriers (electrons or holes) present. This information is crucial for the development and optimization of electronic devices, such as transistors and integrated circuits. Furthermore, the Hall effect is also used in the design of Hall-effect thrusters, which are a type of electric propulsion system used in spacecraft. These thrusters utilize the Hall effect to accelerate charged particles, generating thrust for spacecraft maneuvering and positioning. Overall, the Hall effect is a fundamental and versatile physical phenomenon that has had a significant impact on various scientific and technological fields. Its continued study and application will likely lead to further advancements in electronics, materials science, and space technology.
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