Related Experiment Video
Updated: May 17, 2026
14:16
Fabrication of Schottky Diodes on Zn-polar BeMgZnO/ZnO Heterostructure Grown by Plasma-assisted Molecular Beam Epitaxy
Published on: October 23, 2018
A multifunctional porous organic Schottky barrier diode
Sasanka Dalapati1, Rajat Saha, Sankar Jana
1Department of Chemistry, University of Calcutta, 92 A.P.C. Road, Kolkata, India.
Angewandte Chemie (International Ed. in English)
|November 7, 2012
Summary
A novel multifunctional porous organic material, ANPPIT, was synthesized and characterized. Its diverse properties were confirmed through nitrogen adsorption, luminescence, and electrical conductivity studies.
Area of Science:
- Materials Science
- Organic Chemistry
- Nanotechnology
Background:
- Porous organic materials offer tunable properties for various applications.
- Developing multifunctional materials is crucial for advanced technologies.
Purpose of the Study:
- To synthesize and characterize a novel multifunctional porous organic material.
- To investigate the material's properties using adsorption, luminescence, and conductivity measurements.
Main Methods:
- Synthesis of the porous organic material (ANPPIT).
- Nitrogen adsorption analysis to determine porosity.
- Guest-dependent luminescence spectroscopy.
- Electrical conductivity measurements.
Main Results:
- Successful synthesis and characterization of ANPPIT.
- Demonstration of porosity via nitrogen adsorption.
- Observation of guest-dependent luminescence.
- Confirmation of electrical conductivity.
Conclusions:
- ANPPIT exhibits multifunctional characteristics.
- The material shows potential for applications requiring porosity, luminescence, and conductivity.
Related Concept Videos
01:27Schottky Barrier Diode
Schottky barrier diodes are specialized semiconductor devices characterized by their unique construction. This construction involves combining a metal layer with a moderately doped n-type semiconductor material. This combination leads to the formation of a Schottky barrier, a pivotal element that defines the diode's operational characteristics. The core functionality of Schottky barrier diodes is their capacity to allow current to flow in only one direction due to their distinctive...
01:24Metal-Semiconductor Junctions
The contact of metal and semiconductor can lead to the formation of a junction with either Schottky or Ohmic behavior.
Schottky Barriers
Schottky barriers arise when a metal with a work function (Φm) contacts a semiconductor with a different work function (Φs). Initially, electrons transfer until the Fermi levels of the metal and semiconductor align at equilibrium. For instance, if Φm > Φs, the semiconductor Fermi level is higher than the metal's before contact. The semiconductor's...
Schottky Barriers
Schottky barriers arise when a metal with a work function (Φm) contacts a semiconductor with a different work function (Φs). Initially, electrons transfer until the Fermi levels of the metal and semiconductor align at equilibrium. For instance, if Φm > Φs, the semiconductor Fermi level is higher than the metal's before contact. The semiconductor's...
01:14Diode: Reverse bias
A diode is reverse-biased when the positive terminal of an external voltage source is connected to the n-type material and the negative terminal to the p-type material. This configuration opposes the natural direction of current flow through the diode, effectively increasing the width of the depletion region and the barrier potential. The reverse bias condition produces a minimal leakage current, primarily due to minority charge carriers. This leakage becomes significant when the reverse...
01:20Diode: Forward bias
In semiconductor devices, diodes play a crucial role in directing current flow, and its operation is primarily categorized into forward bias and reverse bias. A diode is said to be forward-biased when its p-type region is connected to the positive terminal of a battery and its n-type region is linked to the negative terminal. This configuration reduces the potential barrier within the diode, allowing current to flow easily from the p to the n-type region.
The behavior of a diode in forward bias...
The behavior of a diode in forward bias...
01:16Zener Diodes
Zener diodes are specialized semiconductor devices designed to operate in the reverse breakdown region, where they allow current to flow into the cathode, making it positive relative to the anode. This reverse operation distinguishes Zener diodes from conventional diodes and enables their use in various applications, most notably as voltage regulators. One of the defining characteristics of Zener diodes is their nearly vertical I-V (current-voltage) characteristic curve above a certain...
01:15The Ideal Diode
A diode is a semiconductor device that allows current to flow in one direction only, making it a crucial component in electronic circuits for controlling the direction of current flow. An ideal diode is a simplified version of a real diode used to understand how diodes work in circuits. It possesses two terminals: the positive anode and the cathode, which is negative. When a positive voltage is applied to the anode relative to the cathode, the diode is in a forward-biased state, allowing...