LEDs
Using nanospheres as a more efficient photon down-converter for white LEDs
[P]
Build your own LED water conductivity meter - conductivity as a water quality measurement
[E]
Determine how the output of an LED flashlight changes over time as its temperature increases.
[E]
How efficient an LED is compared to a conventional incandescent lightbulb?
[E]
Color Mixing with Red, Green, & Blue LEDs
[E]
Measure the light output of an LED as a function of current through the LED.
[E]
Investigate the operation of Light Emitting Diodes (LED) and determine if modern LEDs have the advantages to replace incandescent light bulbs for energy-saving purposes.
[E]
[E]
[E]
[E]
Build a LED Radiometer
[E]
Make your own white LED flashlight bulb.
[E]
[E]
Lights & LED Circuits
Capacitors
Low-Cost Supercapacitors for Energy Storage
[P]
Improvement of Supercapacitors
[P]
[P]
Enhancing the Rate Capability of the Ni-Co-O System Supercapacitor Electrode Using NH3 Treatment
[E]
Design and Synthesis of Hydrogenated TiO2-Polyaniline Nanorods for Flexible High-Performance Supercapacitors
[E]
Explore Solar Energy with a Supercapacitor Car Motor
[E]
Build a Leyden jar capacitor out of common household materials and determine how much charge is stored as you test different charge cycles.
[E]
See if static electricity could be stored in a Leyden jar capacitor made out of common household materials, and if so, can the charge held inside the Leyden jar be measured.
[E]
The effect of different shapes (square, isosceles triangle, equilateral triangle) of asymmetrical capacitors on thrust production.
[E]
Test capacitance properties
[E]
[E]
Build a baking soda variable electrolytic capacitor and oscillator.
[E]
[E]
[E]
Explore the relationship between thrust and voltage of an asymmetric capacitor as a means of generating air thrust (The Biefeld-Brown effect / electrohydrodynamics (EHD).
[E]
Diodes
How Does the Spectrum of an Ionized Gas Affect the Amount of Electric Current that a Silicon Photodiode Produces?
[E]
What Is the Effect of Temperature on the Output of Semiconductor Diodes?
[E]
[E]
Build your own borax or baking soda rectifier.
[E]
[E]
Build a negative resistance oscillator with a homemade tunnel diode.
[E]
[E]
Make your oun vacuum tube diode.
[E]
[E]
Build a simple Zener-regulated power supply
[E]
[E]
[E]
Semiconductors
Explore the history, applications, and recent advancements of semiconductor technology.
[P]
Build your own photocell.
[E]
[E]
How long would it take for a semiconductor device to reach a dangerously high temperature of 200°C when soldered into a circuit?
[E]
Experiments With Transistors and Solid State Devices
[E]
Make your own thermistor and pressure sensor.
[E]
[E]
[E]
Build an active semiconductor device with iron pyrites.
[E]
[E]
Investigate Moore's Law
[E]
[E]
[E]
[E]
Use of Quartz Crystal Microbalance (QCMB) to Study Antibody Antigen Interactions
[E]
[E]
[E]
Research memristors (memory resistor) and explain their revolutionary nature
[E]
Can Light Energy Accurately Measure Surface Area?
[E]
Use an electronic photosensor to verify that the inverse square law applies to light.
[E]
Miscellany
Comparing the Electrical Resistance of Solder Joints and Electrically Conductive Adhesives
[E]
Make your own vacuum tube triode.
[E]
[E]