Podcast
Questions and Answers
What is the shape of the solar modules?
What is the shape of the solar modules?
- Circular
- Triangular
- Rectangular
- Octagonal (correct)
Who discovered the photovoltaic effect in 1839?
Who discovered the photovoltaic effect in 1839?
- Alexandre-Edmond Becquerel (correct)
- Gallium Selenide
- Copper Indium
- Russel Oh
What is the process of producing electrical power in photovoltaic solar cells?
What is the process of producing electrical power in photovoltaic solar cells?
- When an electron is expelled from the p-type material
- When an electron is expelled from the n-type material
- When a photon with sufficient energy impinges on the p-type and n-type junction (correct)
- When a photon with insufficient energy impinges on the p-type and n-type junction
What is the purpose of packing solar cells together?
What is the purpose of packing solar cells together?
What is the colour of solar modules?
What is the colour of solar modules?
Who invented the first modern silicon solar cell in 1946?
Who invented the first modern silicon solar cell in 1946?
What is the result of a change in P in a crystal?
What is the result of a change in P in a crystal?
What is the voltage produced by a 1 cm3 cube of quartz with 2 kN of correctly applied force?
What is the voltage produced by a 1 cm3 cube of quartz with 2 kN of correctly applied force?
What is the converse piezoelectric effect?
What is the converse piezoelectric effect?
Why do we measure the voltage across the capacitor in piezoelectric generators?
Why do we measure the voltage across the capacitor in piezoelectric generators?
What is one of the potential applications of piezoelectric materials?
What is one of the potential applications of piezoelectric materials?
What is the current limitation of piezoelectric energy harvesting devices?
What is the current limitation of piezoelectric energy harvesting devices?
What is the type of silicon formed when a layer of silicon with an excess of electrons is created?
What is the type of silicon formed when a layer of silicon with an excess of electrons is created?
What happens to the electrons in the p-type layer when photons from light hit the silicon?
What happens to the electrons in the p-type layer when photons from light hit the silicon?
What is the result when light is shone on the silicon sandwich?
What is the result when light is shone on the silicon sandwich?
What determines the magnetic properties of a material?
What determines the magnetic properties of a material?
What is formed when an atom or group of atoms behaves magnetically?
What is formed when an atom or group of atoms behaves magnetically?
What happens to the electrons when a layer of n-type silicon is placed on top of a layer of p-type silicon?
What happens to the electrons when a layer of n-type silicon is placed on top of a layer of p-type silicon?
What is the result of bringing a metal and a semiconductor material together?
What is the result of bringing a metal and a semiconductor material together?
What is the relationship between the work function of semiconductors and electron affinity?
What is the relationship between the work function of semiconductors and electron affinity?
What is the purpose of the Schottky barrier?
What is the purpose of the Schottky barrier?
Under equilibrium conditions, what happens to the electrons?
Under equilibrium conditions, what happens to the electrons?
What is the definition of the barrier height ΦB?
What is the definition of the barrier height ΦB?
What is the result of aligning the Fermi energy of the metal and the semiconductor?
What is the result of aligning the Fermi energy of the metal and the semiconductor?
What is the piezoelectric effect a result of?
What is the piezoelectric effect a result of?
What happens when an external electric field is applied to lead zirconate titanate crystals?
What happens when an external electric field is applied to lead zirconate titanate crystals?
What is the inverse piezoelectric effect used for?
What is the inverse piezoelectric effect used for?
What is one of the everyday uses of the piezoelectric effect?
What is one of the everyday uses of the piezoelectric effect?
What is the minimum deformation required to generate measurable piezoelectricity in lead zirconate titanate crystals?
What is the minimum deformation required to generate measurable piezoelectricity in lead zirconate titanate crystals?
What is the piezoelectric effect used for in scanning probe microscopes?
What is the piezoelectric effect used for in scanning probe microscopes?
