State the band gap of the semiconductor used in the making of $LED$.
(N/A) The band gap of the semiconductor used in the making of a Light Emitting Diode $(LED)$ is typically in the range of $1.8 \ eV$ to $3.0 \ eV$.
This energy range corresponds to the visible spectrum of light,allowing the $LED$ to emit light in colors ranging from red to violet.
The specific band gap depends on the material composition of the semiconductor used (e.g.,Gallium Arsenide Phosphide or Gallium Nitride).
This energy range corresponds to the visible spectrum of light,allowing the $LED$ to emit light in colors ranging from red to violet.
The specific band gap depends on the material composition of the semiconductor used (e.g.,Gallium Arsenide Phosphide or Gallium Nitride).
Explore More
Similar Questions
What are optoelectronic devices? Give the names of such major devices.
Difficult
View SolutionWhich type of semiconductor device does not need any bias voltage?
For the emission of light,a light emitting diode $(LED)$ is:
An $LED$ is constructed from a $pn$ junction based on a certain semiconducting material whose energy gap is $1.9 \ eV$. The wavelength of the emitted light is:
$A$ family uses $8 \; kW$ of power.
$(a)$ Direct solar energy is incident on the horizontal surface at an average rate of $200 \; W$ per square meter. If $20 \%$ of this energy can be converted to useful electrical energy, how large an area is needed to supply $8 \; kW$?
$(b)$ Compare this area to that of the roof of a typical house.
$(a)$ Direct solar energy is incident on the horizontal surface at an average rate of $200 \; W$ per square meter. If $20 \%$ of this energy can be converted to useful electrical energy, how large an area is needed to supply $8 \; kW$?
$(b)$ Compare this area to that of the roof of a typical house.
Medium
View SolutionVedclass Products
For Students
Vedclass Test Series
Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.
Start Free TrialFor Teachers
Exam Paper Generator
Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.
Try FreeFor Institutes
Online Exam Module
Live online exams with unlimited students, 360° analytics & white-label branding.
See Demo