Question:
Consider a p-n junction diode which has 1023 acceptor-atoms/m3 in the p-side and 1022 donor-atoms/m3 in the n-side. If the depletion width in the p-side is 0.16µm, then the value of depletion width in the n-side will be ______µm. (Rounded off to one decimal place)
Consider a p-n junction diode which has 1023 acceptor-atoms/m3 in the p-side and 1022 donor-atoms/m3 in the n-side. If the depletion width in the p-side is 0.16µm, then the value of depletion width in the n-side will be ______µm. (Rounded off to one decimal place)
Updated On: Feb 6, 2025
Hide Solution
Verified By Collegedunia
Correct Answer: 1.6
Solution and Explanation
Depletion Width Ratio
The depletion width ratio is given by:
Wp / Wn = ND / NA
Substituting the Given Values
Wp / Wn = 10²² / 10²³ = 0.1
Rearranging for Wn
Wn = Wp / 0.1
Wn = 1.6 µm
Conclusion
Thus, the depletion width in the n-side is 1.6 µm.
Was this answer helpful?
2
0
Top Questions on Solid State Physics, Devices, Electronics
- In 3-dimensional system, the mean energy of an electron in electron gas at absolute zero is __________________________ of fermi energy, \(E_f(0)\) at absolute zero.
- CUET (PG) - 2025
- Material Science and Technology
- Solid State Physics, Devices, Electronics
- The density of zinc is \(7.13 \times 10^3\) kg/m\(^3\) and its atomic weight is 65.4. The fermi energy of Zinc is:
(Given that the effective mass of the electron in zinc is \(0.85m_e\))- CUET (PG) - 2025
- Material Science and Technology
- Solid State Physics, Devices, Electronics
Match the LIST-I with LIST-II
LIST-I LIST-II A. Mobility of electrons (\(\mu\)) I. \( Ne^2\tau/m \) B. Drift velocity of electrons (\(v_d\)) II. \( \mu E \) C. Electrical conductivity of conduction electrons (\(\sigma\)) III. \( \mu m/e \) D. Relaxation time of electrons (\(\tau\)) IV. \( 1/\rho ne \)
Choose the correct answer from the options given below:- CUET (PG) - 2025
- Material Science and Technology
- Solid State Physics, Devices, Electronics
- Which of the following statements are correct for the Sommerfeld model:
A. The free electrons are valence electrons of the composing atoms.
B. The potential energy of an electron at rest inside the metal is assumed to be higher than that of an electron outside the metal.
C. In this model, the mutual repulsion between the electrons is neglected.
D. The potential energy for an electron is periodic.
Choose the correct answer from the options given below:- CUET (PG) - 2025
- Material Science and Technology
- Solid State Physics, Devices, Electronics
- The magnitude of the reciprocal lattice vector is related to interplaner spacing \(d_{hkl}\):
- CUET (PG) - 2025
- Material Science and Technology
- Solid State Physics, Devices, Electronics
View More Questions
Questions Asked in IIT JAM exam
- Consider a volume V enclosed by a closed surface S having unit surface normal \(\hat{n}\). For \(\mathbf{r} = x\hat{i} + y\hat{j} + z\hat{k}\), the value of the surface integral \(\frac{1}{9} \oint_{S} \mathbf{r} \cdot \hat{n} \,dS\) is
- IIT JAM PH - 2025
- Vector Calculus
- For a Zener diode as shown in the circuit diagram below, the Zener voltage \(V_Z\) is 3.7 V. For a load resistance (\(R_L\)) of 1 k\(\Omega\), a current \(I_1\) flows through the load. If \(R_L\) is decreased to 500 \(\Omega\), the current changes to \(I_2\). The ratio \(\frac{I_2}{I_1}\) is \rule{1cm{0.15mm}. (up to two decimal places)}
- IIT JAM PH - 2025
- Analog Electronics
- The shortest distance between an object and its real image formed by a thin convex lens of focal length 20 cm is _____ cm. (in integer)
- If \(\left(\frac{1-i}{1+i}\right)^{n/2} = -1\), where \(i = \sqrt{-1}\), one possible value of n is
- IIT JAM PH - 2025
- Complex numbers
- In a two-level atomic system, the excited state is 0.2 eV above the ground state. Considering the Maxwell-Boltzmann distribution, the temperature at which 2% of the atoms will be in the excited state is _____ K. (up to two decimal places)
(Boltzmann constant \(k_B = 8.62 \times 10^{-5}\) eV/K)
- IIT JAM PH - 2025
- Mechanics
View More Questions