solar cell
1. INTRODUCTION
A solar cell is a device that converts the energy of sunlight directly into electricity by the photovoltaic effect. Sometimes the term solar cell is reserved for devices intended specifically to capture energy from sunlight, while the term photovoltaic cell is used when the light source is unspecified.”Photovoltaics” the field of technology and research related to the application of solar cells in producing electricity for practical use. The term "photovoltaic" comes from the Greek (phōs) meaning "light", and "voltaic", meaning electric, from the name of the Italian physicist Volta, after whom a unit of electrical potential, the volt, is named. The term "photo-voltaic" has been in use in English since 1849. The photovoltaic effect was first recognized in 1839 by French physicist A. E. Becquerel. The photoelectric effect describes the release of positive and negative charge carriers in a solid state when light strikes its surface. Russell Ohl patented the modern junction semiconductor solar cell in 1946.Three scientists (Daryl Chapin, with Bell Labs colleagues Calvin Fuller and Gerald Pearson)invented the first practical device for converting sunlight into useful electrical power. This resulted in the production of the first useful solar cell with a sunlight energy conversion efficiency of around 6%. The first spacecraft to use solar panels was the US satellite Vanguard 1. This milestone created interest in producing and launching a geostationary communications satellite, in which solar energy would provide a veriable power supply. In 1970 the first highly effective GaAs heterostructure solar cells were created. The"dual junction" cell was accidentally produced as a result of the change from GaAs on GaAs substrates to GaAs on Germanium (Ge) substrates.
Three generations of solar cells Solar Cells are classified into three generations
A solar cell is a device that converts the energy of sunlight directly into electricity by the photovoltaic effect. Sometimes the term solar cell is reserved for devices intended specifically to capture energy from sunlight, while the term photovoltaic cell is used when the light source is unspecified.”Photovoltaics” the field of technology and research related to the application of solar cells in producing electricity for practical use. The term "photovoltaic" comes from the Greek (phōs) meaning "light", and "voltaic", meaning electric, from the name of the Italian physicist Volta, after whom a unit of electrical potential, the volt, is named. The term "photo-voltaic" has been in use in English since 1849. The photovoltaic effect was first recognized in 1839 by French physicist A. E. Becquerel. The photoelectric effect describes the release of positive and negative charge carriers in a solid state when light strikes its surface. Russell Ohl patented the modern junction semiconductor solar cell in 1946.Three scientists (Daryl Chapin, with Bell Labs colleagues Calvin Fuller and Gerald Pearson)invented the first practical device for converting sunlight into useful electrical power. This resulted in the production of the first useful solar cell with a sunlight energy conversion efficiency of around 6%. The first spacecraft to use solar panels was the US satellite Vanguard 1. This milestone created interest in producing and launching a geostationary communications satellite, in which solar energy would provide a veriable power supply. In 1970 the first highly effective GaAs heterostructure solar cells were created. The"dual junction" cell was accidentally produced as a result of the change from GaAs on GaAs substrates to GaAs on Germanium (Ge) substrates.
Three generations of solar cells Solar Cells are classified into three generations