jjm electronics

Optoelectronics


These boards are designed specifically for the semiconductor content in the Waves and Matter unit of Higher Physics.
 
Plot junction characteristics, demonstrate light emission, investigate photoconductive and photovoltaic mode for photodiode.

VARIABLE VOLTAGE SOURCE

An adjustable voltage supply which greatly simplifies the collection of data for pn junctions (or any other two terminal component).
 
  • operates from 12V ac supply
  • single or dual polarity operation
  • dual polarity allows investigation of forward and reverse characteristics without changing connections
  • 2V or 10V range setting
  • voltage adjusted by multiturn potentiometer (allows very precise setting)
 

Order Code: 03-004  Price: £26.40

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PN JUNCTION DIODE

A robust silicon diode mounted on board with 680R protection resistor.

Order Code: 03-001  Price: £8.25

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LED

A 8mm light emitting diode mounted on board with 680R protection resistor.
 
An 8mm red LED is supplied as standard, but the board can be supplied with the same size yellow or green LED if preferred - specify on order.

Order Code: 03-002  Price: £8.35

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PHOTODIODE

A large area photodiode mounted on board with 680R protection resistor.
 
In photoconductive mode strong illumination will give reverse current of half a mA or more.
 
In photovoltaic mode will generate approx10uW in diffuse daylight rising to 100uW in strong illumination.
 
 

Order Code: 03-003  Price: £9.25

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OPTOELECTRONICS SET

Order Code: 03-010  Price: £48.00

One each of the above four boards

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