How does the conversion of sunlight into into electric current occurs when light falls on a photo sensitive n-p junction?

Q: It is considered that a solid substance has an orthorhombic structure. Since the edges of the unit…

A: Edges of unit cell: a = 3.50 A b = 4.0 A c = 5.5 A Miller indices of plane for which diffraction is…

Q: Electronic semi conductor In a direct band gap semiconductor quantum well of 10 nm thickness…

A: In the direct bandgap semiconductor for the transition of an electron from the first excited state…

Q: In your laboratory notebook, draw an energy diagram for your semiconductor sample. On your energy…

A: In semiconductor we know the conduction band contain null, and valence band is fully filled, and…

Q: Explain the terms : (a) Intrinsic semiconductor (b) Extrinsic semiconductor.

A: Intrinsic semiconductor: Naturally occurring property of pure material, the number of electrons in…

Q: in meters) of an electromagneti

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Q: What type of linkage is in the diagram below?   Group of answer choices β1⟶4β1⟶4 α1⟶4α1⟶4…

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Q: The minority carriers in p-type semiconductors are

A: Doping is the process by which conductivity of a semi conductor increases. When an element of group…

Q: Q2) a-What is the role of the repeat unit in the conduction of polymers? b-Explain Matthiessen's…

A: Following are the appropriate answers of the given questions.

Q: What is band broadening? Explain the phenomenon of eddy diffusion.

A: These are terms with reference to chromatography:

Q: How may the conductivity of an intrinsic semiconductor be increased?

A: The intrinsic semiconductor is a type of semiconductor which is pure semiconductor, which has no…

Q: Consider band structure of a material with energies in the valance and conduction bands: E, = -JA² +…

A: I will the answers for finding bandgap and effective mass for holes and electrons

Q: Discuss the reasons for the observation of dominant covalent bonding (but not ionic bonding) in…

A: The interaction present between the atoms and binds them together is known as the bonding. There are…

Q: Find the electric potential energy of an Na+ ion and a Cl- ion separated by 0.24 nm. Consider the…

A: The energy possessed by the charges due to their position at a certain point is known as potential…

Q: 2. Shown below is a chart of the carrier concentration in three intrinsic semiconductors (Si, Ge,…

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Q: 7. Consider these three labelled specific volume vs. temperature plots that may be displayed by…

A: The curve a shows amorphous solid. The curve b shows semicrystalline solid The curve c shows…

Q: A solid is thought to have an orthorhombic structure. Calculate the positions D and 2θ for the plane…

A: Interpretation-  To calculate the position D and 2θ for the plane 111 expected in the diffraction…

Q: Melting gold with other metals makes 10-karat gold. Which term best describes 10-karat gold?

A: 10 karat gold is an alloy . Alloy are the homogeneous mixture. Since alloy contain more than one…

Q: How much dopant is present in 107 kgkg of semiconductor with a dopant concentration of 2.00 ppmppm…

A: Given: Mass of semiconductor = 107 Kg. And the concentration of dopant = 2.00 ppm by mass.

Q: Metals, semiconductors, and insulators are distinguished by differences in values, A) conductivity B…

A: Metals are very good conductors of electricity. Insulators are poor conductors of electricity.…

Q: Explain the process of making an n -type and p -type semiconductor materials

A: p -type semiconductor : When a semiconductor ( Ge or Si ) is doped with electron deficient impurity…

Q: What is the temperature and length of time it takes for boron-doped graphene to diffuse into…

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Q: Variable electrovalency is shown by which block elements?

A: The distribution of electrons in atomic or molecular orbitals of an atom or of a molecule is known…

Q: Why are units of energy per area (J/m²) used for surface ten-sion values?

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Q: The band gap energy of semiconductor LED is 3.0ev What is the wavelength of maximum corresponding…

A: Wavelength can be calculated using the given equation: E =  hcλ

Q: Direct currents are uniform and have uniform voltage. O True O False

A: True

Q: 6. The following first-order reflections are observed for cubic crystals of copper when 1. = 139.2…

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Q: explain the properties of zinc? zinc can conduct current or not?

A: Zinc is a blue-grey, metallic element with the symbol Zn and atomic number 30. it has a blue-silvery…

Q: Why can a molecule such as CO easily be dissociated on a metal (Au/CeO2) surface but not in the gas…

A: Adsorption (chemisorption) on a metal surface

Q: The crystalline solid, GaAs, has many applications in optoelectronics. The HOMO-LUMO electron band…

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Q: How can the conductivity of semi-conductors be controlled?

A: The conductivity of semiconductors may easily be modified by introducing impurities into their…

Q: Sketch [0110] and [2243] in an HCP unit cell.

A: Solution: We will draw a hexagonal unit cell with ruled co-ordinate system as follows: Point O is…

Q: how does the excess citrate ion (C6H5O73‐) affect nanoparticle synthesis?

A: Given information,Synthesis of nanoparticles using citrate ion.

Q: Specific conductance is expressed in terms of Ohm- cm .a Ohm/cm .b O Ohm.cm .c O Ohm- cm1 .d O

A:

Q: Nanomaterials are substances with at least one dimension between a. 1 and 10 pm b. 1 and 100 pm…

A: Nanomaterials exist in nature and can be produced by using  various products such as carbon or…

Q: B C Which part in the figure can be a grating or prism? A *中3中。 BC D * O O O O

A: Prism- An optical prism is a transparent optical element with flat, polished surfaces that are…

Q: Distinguish between Chemiluminescence and Triboluminescence and give an  example of each.

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Q: Q2: Complete the following: 1. Freeze-out pheromone is... 2. A compensated semiconductor can be…

A: 1. Freezeout in the semiconductor: if the temperature is very less then the percentage ionization of…

Q: Differentiate AAS, AAS-Graphite, FES and ICP-MS

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Q: Is gallium-doped germanium a p-type or n-type semiconductor?

A: Gallium-doped germanium is a p-type semiconductor.

Q: Compute the resistivity of aluminum wire 5 mm in diameter and 5 m long. 4 07.6 x 10^-3 O 6.7 x 10^-5…

A: \Given that : Diameter = 5mm = 5×10-3 m Length = 5 m

Q: 5. Describe the crystal structure of BaFei2O19. What is the relation between permeability with…

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Q: e) A crystal has a cubic unit cell of 4.2 Å. Using a wavelength of 1.54 Å at which 20 value would…

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Q: How does the band gap differ in metals, semiconductors, andinsulators?

A: Band gap is the energy gap between conduction band and valence band. In metals, the band gap between…