Properties of polysilicon: gray metallic luster (the enlarged polysilicon is shown in Figure 1-1), density is 2.32~2.34g/cm3, melting point is 1410℃, boiling point is as high as 2355℃, insoluble in
What are the advantages of silicon solar cell materialsWhat are the advantages of silicon solar cell materials
1.1 Excellent performance of silicon solar cell materials The most basic component of solar photovoltaic power generation is solar cells, and the most used material for making solar cells is
What are the types and characteristics of solar cellsWhat are the types and characteristics of solar cells
1.1 Classification of solar cell materials In order to make effective use of solar energy, we must first find materials for making solar cells. The material for making solar cells
What is photovoltaic effect and optoelectronicsWhat is photovoltaic effect and optoelectronics
1.1 Photovoltaic effect “Photovoltaic effect” is abbreviated as “photovoltaic effect.” Photovoltaic effect refers to the phenomenon that light produces a potential difference between different parts of a non-uniform semiconductor or
What is the volt-ampere characteristic of a semiconductor diodeWhat is the volt-ampere characteristic of a semiconductor diode
1.1 Volt-ampere characteristics of semiconductor diodes The characteristic of the diode is mainly unidirectional conductivity, which has been explained in the characteristic of PN junction. Now focus on analyzing its
What is the band structure and photoconductivity of semiconductorsWhat is the band structure and photoconductivity of semiconductors
1.1 Band structure and photoconductivity of semiconductors 1.1.1 Band structure of semiconductors No matter how electrons and holes move, they must have many states of motion. When not stimulated by
What is the diffusion motion and drift motion of PN junctionWhat is the diffusion motion and drift motion of PN junction
1.1 Characteristics of PN junctionEveryone knows that although there are a lot of free electrons in a conductor, the conductor itself is not charged. Similarly, whether it is a P-type
What is the unidirectional conduction of semiconductor diodesWhat is the unidirectional conduction of semiconductor diodes
1.1 The mechanism of semiconductor and metal conductor conduction The term “semiconductor” is relative to “conductor”. Objects with high conductivity are called conductors; objects that cannot conduct electricity are called
What is the mobility and conductivity of free electrons in metalsWhat is the mobility and conductivity of free electrons in metals
1.1 The concentration of free electrons and free electronsWhy do metal materials have the ability to conduct electricity? The answer can be obtained from the structure of matter. For example,
What is solar radiation intensity and solar radiation energy conversionWhat is solar radiation intensity and solar radiation energy conversion
1.1 Solar radiation intensity The solar radiation energy projected vertically onto a unit area in a unit time is called solar radiation intensity. The intensity of solar radiation is a