PHYSICS F./SCI... W/MOD V.II W/KIT
4th Edition
ISBN: 9780134819884
Author: GIANCOLI
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Question
Chapter 40, Problem 82GP
To determine
Find the energy gap for green and blue LEDs.
Expert Solution & Answer
![Check Mark](/static/check-mark.png)
Want to see the full answer?
Check out a sample textbook solution![Blurred answer](/static/blurred-answer.jpg)
Students have asked these similar questions
Two diodes are connected in parallel as shown below:
p(0.c.) = 0.15
p (s.c.) = 0.25
A diode may fail in one of the two ways: by short-circuiting or by open-circuiting. What is
the probability that the two-diode arrangement will work as a diode?
A Germanium diode carries a current
of 1 mA at room temperature when a
forward bias of 0.15 V is applied.
Estimate the reverse saturation current
at room temperature. *
O 2.5 μA
O2.1 μA
O 3.7 μA
O 44 μA
a)
for Ge, Si and GaAs. (Why is ni highest for Ge? Why is it lowest for GaAs?)
Explain qualitatively the differences in intrinsic carrier concentrations
b) Explain qualitatively why ni increases with increasing temperature.
1500
T(*C)
1019
1000 500
200 100
27
List of band gaps of semiconductor materials.
1018
Band g
@ 302
Group Material
Symbol
1017
IV
Diamond
5.5
Ge
IV
Silicon
Si
1.11
1016
IV
Germanium
Ge
0.67
IlI-V
Gallium(II) nitride
GaN
3.4
1015
III-V
Gallium(III) phosphide GaP
2.26
III-V
Gallium(III) arsenide
GaAs
1.43
Si
1014
IV-V
Silicon nitride
Si,N,
5.
IV-VI
Lead(II) sulfide
PbS
0.37
1013
IV-VI
Silicon dioxide
SiO2
Copper(1) oxide
2.1
MAIM
1012
1011
1010
GaAS
109
108
107
106
0.5 1.0 1.5 2.0 2.5 3.0
1000/T(K )
Intrinsic carrier density n; (cm3)
Chapter 40 Solutions
PHYSICS F./SCI... W/MOD V.II W/KIT
Ch. 40.4 - Determine the three lowest rotational energy...Ch. 40.6 - Prob. 1BECh. 40.6 - Prob. 1CECh. 40.8 - Prob. 1DECh. 40 - What type of bond would you expect for (a) the N2...Ch. 40 - Describe how the molecule CaCl2 could be formed.Ch. 40 - Does the H2 molecule have a permanent dipole...Ch. 40 - Although the molecule H3 is not stable, the ion...Ch. 40 - The energy of a molecule can be divided into four...Ch. 40 - Would you expect the molecule H2+ to be stable? If...
Ch. 40 - Explain why the carbon atom (Z = 6) usually forms...Ch. 40 - Prob. 8QCh. 40 - Prob. 9QCh. 40 - Prob. 10QCh. 40 - Prob. 11QCh. 40 - Prob. 12QCh. 40 - Prob. 13QCh. 40 - Prob. 14QCh. 40 - Prob. 15QCh. 40 - Prob. 16QCh. 40 - Prob. 17QCh. 40 - Prob. 18QCh. 40 - Prob. 19QCh. 40 - Prob. 20QCh. 40 - Prob. 21QCh. 40 - Prob. 22QCh. 40 - Prob. 23QCh. 40 - Prob. 1PCh. 40 - (II) The measured binding energy of KCl is 4.43eV....Ch. 40 - (II) Estimate the binding energy of the H2...Ch. 40 - (II) The equilibrium distance r0 between two atoms...Ch. 40 - Prob. 5PCh. 40 - Prob. 6PCh. 40 - (III) (a) Apply reasoning similar to that in the...Ch. 40 - (I) Show that the quantity 2/I has units of...Ch. 40 - Prob. 9PCh. 40 - Prob. 10PCh. 40 - Prob. 11PCh. 40 - Prob. 12PCh. 40 - Prob. 13PCh. 40 - Prob. 14PCh. 40 - Prob. 15PCh. 40 - Prob. 16PCh. 40 - (II) Calculate the bond length for the NaCl...Ch. 40 - Prob. 18PCh. 40 - Prob. 19PCh. 40 - Prob. 20PCh. 40 - Prob. 21PCh. 40 - Prob. 22PCh. 40 - Prob. 23PCh. 40 - Prob. 24PCh. 40 - Prob. 25PCh. 40 - Prob. 26PCh. 40 - Prob. 27PCh. 40 - Prob. 28PCh. 40 - Prob. 29PCh. 40 - Prob. 30PCh. 40 - Prob. 31PCh. 40 - Prob. 32PCh. 40 - Prob. 33PCh. 40 - Prob. 34PCh. 40 - Prob. 35PCh. 40 - Prob. 36PCh. 40 - Prob. 37PCh. 40 - Prob. 38PCh. 40 - Prob. 39PCh. 40 - Prob. 40PCh. 40 - Prob. 41PCh. 40 - Prob. 42PCh. 40 - Prob. 43PCh. 40 - Prob. 44PCh. 40 - Prob. 45PCh. 40 - Prob. 46PCh. 40 - Prob. 47PCh. 40 - Prob. 48PCh. 40 - Prob. 49PCh. 40 - Prob. 50PCh. 40 - Prob. 51PCh. 40 - Prob. 52PCh. 40 - Prob. 53PCh. 40 - Prob. 54PCh. 40 - Prob. 55PCh. 40 - Prob. 56PCh. 40 - Prob. 57PCh. 40 - Prob. 58PCh. 40 - Prob. 59PCh. 40 - Prob. 60PCh. 40 - Prob. 61PCh. 40 - Prob. 62GPCh. 40 - Prob. 63GPCh. 40 - Prob. 64GPCh. 40 - Prob. 65GPCh. 40 - Prob. 66GPCh. 40 - Prob. 67GPCh. 40 - Prob. 68GPCh. 40 - Prob. 69GPCh. 40 - Prob. 70GPCh. 40 - Prob. 71GPCh. 40 - Prob. 72GPCh. 40 - Prob. 73GPCh. 40 - Prob. 74GPCh. 40 - Prob. 75GPCh. 40 - Prob. 76GPCh. 40 - Prob. 77GPCh. 40 - Prob. 78GPCh. 40 - Prob. 79GPCh. 40 - Prob. 80GPCh. 40 - Prob. 81GPCh. 40 - Prob. 82GPCh. 40 - Prob. 83GPCh. 40 - Prob. 84GPCh. 40 - Prob. 85GPCh. 40 - Prob. 86GPCh. 40 - Prob. 87GPCh. 40 - Prob. 88GPCh. 40 - Prob. 89GP
Knowledge Booster
Similar questions
- The measured density of a NaF crystal is 2.558 g/cm3 . What is the equilibrium separate distance of Na+ and Flions?arrow_forwardWhat is the longest wavelength for a photon that can excite a valence election into the conduction band across an energy gap of 0.80 eV?arrow_forwardIf the diode for the given circuit below is a Silicon diode, how much is the maximum positive voltage (taken at the series connection of the diode and the battery)? R1 1 V1 1kQ D1 7.5V Vout 1kHz 4 0° V2 I 3.6V Answer:arrow_forward
- . When UV photons with 380 nm wavelength strike on a semiconductor, a red photon emission from the semiconductor is observed. Explain the photon emission process in this semiconductor on the band diagram.arrow_forwardHowever, the molecule we can encounter everyday continuously vibrates and interact with the surrounding causing its bond vector to vary slightly. According to a new spectroscopy analysis, the adjacent bond vectors was found to be A = 0.82i + 0.99j + 0.84k B = 1.09i + -1.01j + -0.97k What is the angle (in degrees) between the bonds based on this new data?arrow_forwardP 8:04 docs.google.com a 0 20% @ 3G Asiacell In. For the given circuit for a 40 V (p-p) sinusoidal input vi, what is the value of vi at which the clipping begins? V=5V. NOTE: use ideal diode * Оз Clipping doesn't occur 25 -20 5 v Page 2 of 2arrow_forward
- Calculate the hole velocity when a voltage of 5 V is applied through a semiconductor bar as below: V + 0.05 cm 0.55 cm (Mobility of hole is given as 450 cm²/Vs) Select one: A. 14500 cm/s B. 4090 cm/s C. 4500 cm/s D. 13180 cm/s 0.3 cmarrow_forwardThe energy gap of an element is given as 5.9×10 eV. Calculate the intrinsic coherent length if V₂ = 5.82×106 m/s. (a) 5.9 μm (b) 1.2 μm (c) 9.5 μm (d) 2.1 μmarrow_forwardIn a certain biased limiter, the bias voltage is 5 V and the input is a 10 V peak sine wave. If the positive terminal of the bias voltage is connected to the cathode of the diode, the maximum voltage at the anode is O 10 V O 0.7 V O 5.7 V O 5V O 9.3 O Other:arrow_forward
- Tunnel Diode device is a. none of the options b. Basic p-n junction but with both materials very heavily doped with acceptor and donor atoms respectively c. presented when a p-n junction is subjected to a small negative voltage, a small depletion layer is formed where no electrons exist in the conduction bands or holes in the valence band d. in which the electrons in the conduction band is of the n-type material is drawn towards the positive chargearrow_forwardSemiconductor LED's have a slow response time and hence a low frequency operation and low band width because: a. their produced photons are mainly due to the diffusion process of the injected carriers O b. Their produced photons are due to injected electrons having a low drift velocity only in n-side of the junction Their produced photons are due to injected holes having a low drift Oc. velocity only in p-side of the junction O d. Their produced photons are due to injected electrons and holes having a low drift velocity due to low biasing voltage. е. Non of the given choices is correct.arrow_forwardAn abrupt silicon pn junction at zero bias has dopant concentrations of Nd = 5 X 1017 cm 3 and N₂ = 1 X 1017 cm-3 at T = a 300K. Determine the peak electric field for this junction for a reverse voltage of 5 V. Emax = O Emax O Emax 3.88 X 105 V/cm Emax 3.21 X 105 V/cm Emax = 1.70 X 105 V/cm 1.35 X 105 V/cm =arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Modern PhysicsPhysicsISBN:9781111794378Author:Raymond A. Serway, Clement J. Moses, Curt A. MoyerPublisher:Cengage LearningUniversity Physics Volume 3PhysicsISBN:9781938168185Author:William Moebs, Jeff SannyPublisher:OpenStax
![Text book image](https://www.bartleby.com/isbn_cover_images/9781111794378/9781111794378_smallCoverImage.gif)
Modern Physics
Physics
ISBN:9781111794378
Author:Raymond A. Serway, Clement J. Moses, Curt A. Moyer
Publisher:Cengage Learning
![Text book image](https://www.bartleby.com/isbn_cover_images/9781938168185/9781938168185_smallCoverImage.gif)
University Physics Volume 3
Physics
ISBN:9781938168185
Author:William Moebs, Jeff Sanny
Publisher:OpenStax