Energy Band Gap of PN Junction Diode Manufacturer,Supplier and Exporter in India
Product Code : EL-SCD-1086
Jlab Export is a leading Energy Band Gap of PN Junction Diode Manufacturer,and suppliers in India
Energy Band Gap of PN Junction Diode (code EL-SCD-1086) is a bench apparatus for finding the energy band gap of a semiconductor by plotting the reverse saturation current of a reverse-biased PN junction diode against temperature. The diode sits in an oven with a temperature control system and a thermometer reading to 100 °C, and a DC regulated power supply and two round meters measure voltage and current. It is made by Jain Laboratory Instruments Pvt Ltd (JLab) at its works in Ambala, India.
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Specifications
| Parameter | Detail |
|---|---|
| Experiment | Reverse saturation current versus temperature in a reverse-biased PN junction diode |
| Diode | One PN junction diode, placed in an oven |
| Temperature | Thermometer reading to 100 °C; temperature control system |
| DC regulated power supply | 500 mA (voltage range to be confirmed with JLab) |
| Meters | Two round meters, for voltage and current measurement |
| Dimensions | 10 x 8 x 5 in (about 25 x 20 x 13 cm) |
| Quality check | Each apparatus is visually inspected before dispatch |
| Pack quantity | Each (sold individually) |
| Minimum order quantity | 10 units |
| Dispatch time | Usually 7–10 working days |
| Product code | EL-SCD-1086 |
| Manufacturer | Jain Laboratory Instruments Pvt Ltd (JLab) — OEM |
| Country of origin | India (made in Ambala, Haryana) |
How Does It Compare with Other JLab Band Gap Apparatus?
| Model | Heating and temperature | Supply and meters (as listed) |
|---|---|---|
| This apparatus (EL-SCD-1086) | Oven with temperature control system; thermometer | DC regulated supply; two round meters |
| Determination of Energy Band Gap in Semiconductor Diode | Electrically heated oven; thermometer | Regulated supply; digital microammeter |
| Energy Band Gap Apparatus | Electric oven; mercury thermometer | Inbuilt variable DC regulated supply; analog moving-coil voltmeter and microammeter on an aluminium panel |
Choose this apparatus when you want an oven with its own temperature control system and round analogue meters. The other two models follow the same reverse-saturation-current method, one with a digital microammeter and one on an aluminium panel; the four probe set-up linked below finds the band gap from resistivity instead.
What Is the Energy Band Gap Apparatus Used For?
The energy band gap is the energy needed to free an electron from the valence band into the conduction band, and it sets how a semiconductor behaves. In a reverse-biased PN junction, the small reverse saturation current comes from thermally generated minority carriers, so it rises steeply as the junction warms, roughly in proportion to the exponential of minus the band gap divided by the product of Boltzmann’s constant and the absolute temperature. Students heat the oven, hold the reverse bias steady, and note the reverse current at a series of temperatures, often on both heating and cooling. Plotting the natural logarithm of the current against the reciprocal of the absolute temperature gives a nearly straight line, and the size of its slope multiplied by Boltzmann’s constant gives the band gap in electron-volts.
The experiment is a standard B.Sc. physics practical and also appears in first-year engineering physics labs, where it links semiconductor theory to a measurement students make themselves. Convert each reading to kelvin before plotting, wait for the temperature to settle before recording, and let the oven cool before handling the diode.
What to Specify When Ordering
- Supply range — confirm the voltage range of the DC regulated supply, which the listing does not state clearly.
- Diode type and spare thermometer — ask which diode is fitted and order a spare thermometer for student use.
- Quantity — the minimum order is 10 units.
Frequently Asked Questions
How does this apparatus find the band gap?
From the change of reverse saturation current with temperature. A graph of the logarithm of the current against the reciprocal of absolute temperature has a slope proportional to the band gap.
How is the diode heated and its temperature measured?
The PN junction diode is placed in an oven with a temperature control system, and a thermometer reading to 100 °C gives the temperature.
What is the range of the power supply?
The listing gives a DC regulated supply rated at 500 mA but its voltage range is not clearly printed, so ask JLab to confirm it.
What is the minimum order and dispatch time?
The minimum order is 10 units, and dispatch is usually within 7–10 working days after visual inspection. Export transit depends on the destination.
Who manufactures this apparatus?
Jain Laboratory Instruments Pvt Ltd, trading as JLab, at its works in Ambala, Haryana, India.
OEM Manufacturer
JLab is the trading name of Jain Laboratory Instruments Pvt Ltd, a physics lab instruments manufacturer in India, incorporated in 2017 and based on Hargolal Road, Ambala, Haryana. The band gap apparatus is assembled in JLab’s own works rather than bought from a trader, so colleges, universities, dealers and importers buy it from the maker; each unit is visually inspected before dispatch, and repeat orders and spares are handled by the manufacturer. JLab exports worldwide and ships to buyers in every region — for example the UK in Western Europe, Albania in Southern Europe, Tajikistan in Central Asia, Morocco in North Africa and Mexico in North America. Tender details are on the JLab lab tenders page.
Related Semiconductor Apparatus
- Determination of Energy Band Gap in Semiconductor Diode — the same method with a digital microammeter.
- Energy Band Gap Apparatus — an aluminium-panel version with analog meters and a mercury thermometer.
- Resistivity of Semiconductors by Four Probe Method at Different Temperatures and Determination of Band-Gap — finds the band gap of a germanium crystal from resistivity.
- Semiconductor Diode and PN Junction Diode Apparatus — forward and reverse characteristics of the PN junction.
See the full Semi Conductor Devices range or all Scientific Instrument apparatus.
Request a Quote
Quotes come direct from the manufacturer. Use the Add To Cart enquiry button, or send the quantity (minimum 10 units), any spares and your delivery location through the contact page.
Last updated: 9 October 2026
