Performance structure of semiconductor P-N junction of solar photovoltaic cell

Principles of semiconductor solar photovoltaic cell

Performance structure of semiconductor P-N junction of solar photovoltaic cell

admin on August 21, 2021 0 Comments • Tags: #bandstructureofpnjunction #carrierlifetime #pnjunctionunderlight

① Band structure of P-N junctionDue to the diffusion and drift of carriers, a space charge region and a built-in electric field appear in the semiconductor, causing the potential U and related hole potential energy (eV) or electron potential energy (one eV) of this part to change with the position, and finally change the PN … Read More

Principles of semiconductor solar photovoltaic cell

Semiconductor P-N junction of solar photovoltaic cell

admin on August 10, 2021 0 Comments • Tags: #electronconcentration #ntypesemiconductormaterial #ptypesemiconductormaterial

Intrinsic semiconductor materials are doped with group V impurity elements (phosphorus, arsenic, etc.), and the impurities provide electrons, making the electron concentration in them greater than the hole concentration, forming an N-type semiconductor (Figure 1) material, and the impurity is called “donor” “. At this time, the electron concentration is greater than the hole concentration, … Read More

Principles of semiconductor solar photovoltaic cell

What is the energy band of semiconductors?

admin on August 3, 2021 0 Comments • Tags: #electronorbit #electronicenergylevel #semiconductorcrystal

Interpreted from the energy band point of view, the reason why the conductivity of a semiconductor is between a conductor and an insulator lies in the band gap of the semiconductor energy band. The energy value that the electrons in free space can obtain is basically continuous, but in semiconductors, due to quantum effects, the … Read More

Principles of semiconductor solar photovoltaic cell

Crystal structure and electron-hole pairs of semiconductor solar photovoltaic cell

admin on August 3, 2021 0 Comments • Tags: #diamondstructure #intrinsicsemiconductor #latticeconstant #thermalequilibrium

Crystal structureSolid substances can be divided into two categories, crystalline and non-crystalline, according to the arrangement rules of their particles (atoms, ions, and molecules). Solid substances with a definite melting point are called crystals, such as silicon, gallium arsenide, ice, and general metals; solid substances that have no definite melting point and gradually soften within … Read More

Principles of semiconductor solar photovoltaic cell

What is a semiconductor and its classification and characteristics?

admin on August 3, 2021 0 Comments • Tags: #conductivityofsemiconductors #freeelectron #thermistor

In order to illustrate the concept of photovoltaic effect, we have to start with semiconductors. According to the electrical conductivity, solid materials can be divided into insulators, conductors and semiconductors. In layman’s terms, those that can conduct electricity are called conductors; those that cannot conduct electricity are called insulators; those that are between conductors and … Read More

Solar energy utilization and solar cell

Solar photovoltaic applications and the development of solar photovoltaic cell

admin on August 2, 2021 0 Comments • Tags: #photovoltaicenergy #solarenergyconversion #solarphotovoltaicpowergeneration

Solar photovoltaic applicationsIn principle, solar energy can be transformed into any form of energy. The conversion of solar energy into thermal energy (see Figure 1) is the most common one, such as solar water heaters used in homes. The use of light and heat is mainly for heating and cooling. Generally speaking, the black absorption … Read More

Solar energy utilization and solar cell

Solar and renewable energy classification

admin on August 2, 2021 0 Comments • Tags: #renewableenergy #solaractivity #sunradiation

Everything grows by the sun. The earth’s wind energy, water energy, ocean temperature difference energy, wave energy and biomass energy, and part of the tidal energy all come from the sun; even the fossil fuels on the earth (such as coal, oil, natural gas, etc.) are fundamentally speaking Solar energy stored in ancient times. The … Read More