基于LED的光量子理论测量普朗克常量MEASUREMENT OF PLANCK CONSTANT BASED ON LED QUANTUM THEORY
陈霞,孙太宇,何宇飞,林凡宸,梁晓森,冯列峰
摘要(Abstract)：
普朗克常量在物理学中具有非常重要的意义，可根据LED的光量子理论，对普朗克常量进行测量。LED是一种常见的半导体器件，其电学特性和光学特性容易受到温度的影响。本文利用自制的可调恒温器对LED进行控温，测量了不同温度下LED的阈值电压和峰值波长。实验表明，随着LED温度的升高，其阈值电压降低，同时峰值波长红移。基于光量子理论，进一步对LED的阈值电压和峰值波长进行数据处理，将阈值电压和频率做直线拟合，从拟合直线的斜率得到普朗克常量。
关键词(KeyWords)： 普朗克常量;发光二极管;伏安特性;峰值波长
基金项目(Foundation): 国家自然科学基金资助项目(12274319,61804010,11204209);; 天津市自然科学基金面上项目(17JCYBJC16200);; 天津大学校级重点教改项目(No.Z202122)
作者(Author): 陈霞,孙太宇,何宇飞,林凡宸,梁晓森,冯列峰
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