How can we make a transistor without doping?

More Manoj KUMAR Parida's questions See All

Cross section of Uranium-238 at different fast energies of neutron?

Dear All, The neutron cross section of element generally falls with the increase in neutron energy. But in U-238 the fission cross section at Neutron energy of 1MeV is 0.3 barns whereas it...

02 March 2017 1,774 4 View

Ideality factor for diodes?

Is there any mathematical formula there for the ideality factor of the diodes? I will be very much thankful for the above. Please send the mathematical expression for it.

08 September 2016 7,007 5 View

The pulse shaping circuit of the radiation detector?

In the radiation detector the pulse shaping circuit consists of CR-RC circuit and amplifier.The function of pulse shaping amplifier is to improve Signal to Noise ratio.It also act as a filter to...

08 September 2016 8,565 4 View

How to reduce shot noise in the semiconductor radiation detector?

Generally there are three types of noise is present in the semiconductor radiation detector.These are Thermal Noise,Shot noise and Flicker Noise.The thermal noise is removed by operating the...

08 September 2016 9,355 2 View

Coating of Enriched Boon-10 on Si Surface other than CVD technique?

Dear All, Is there any technique other than the CVD to coat the Enriched Boron-10 on the Si surface? I will be very much thankful for the reply. Thanks & Regards Manoj

08 September 2016 8,686 0 View

In radiation detector Generally the HV Bias to the detector is given through the charge sensitive Preamplifier?

In the commercial available charge sensitive preamplifier for semiconductor radiation detector.Generally the HV(High Voltage) bias given to the semiconductor detector is through the charge...

08 September 2016 4,154 4 View

Neutron irradiation effect on semiconductor PIN Diode?

I have performed the neutron irradiation on the PIN Diode. I have found that the forward bias cut-in volatge has been shifted. Why these shift been observed in the neutron irradiated PIN...

06 July 2016 8,002 3 View

Why electric field is maximum at the center of the depletion region in the PN junction?

In the depletion region only uncovered ions are exiting then why we have the maximum electric field at the center of the junction?

06 July 2016 7,472 6 View

How does a guard ring in the PIN Diodes reduces the surface leakage current?

The function of the Guard ring is to reduce the leakage current and make the PIN diode to work at higher potential ? How does the guard ring perform this function? Please some one explain...

06 July 2016 6,690 2 View

Common mode signal calaculation?

Dear All, For the common mode signal the input voltage is calculated as (V1+V2)/2. Why we are calculating the common mode input signal as (V1+V2)/2 whereas in differential mode the input signal is...

04 May 2016 2,090 1 View

Are air moisture harvesting technologies effective in combating desertification?

Air moisture harvesting Air water collection devices

06 August 2024 5,473 2 View

Best mask design for metal deposition aiming build a Perovskite solar cell device?

What types of mask designs for metal deposition, to be used in a PVD system, are best suited for perovskite-based solar cells?

31 July 2024 4,835 3 View

¿Are oxygen vacancies in semiconductors capable to change the band gap?

Dear all! Oxygen vacancies do raise negatively the Fermi level by increasing the negative charge in the semiconductor crystal structure. In the case of n-type semiconductors, I wonder if this...

30 July 2024 8,339 2 View

How to build my own lab made four point probe set up?

Hello, I'm trying to measure the conductivity of semiconductor films but since I don't have a commercial four point probe set up I would like to build one on my own in my lab. I have generators,...

30 July 2024 906 2 View

Charge transfer characteristics of inverted perovskite leds?

When testing devices based on ITO/ZnO/CsPbBr3/TFB/MoO3/Ag structures, I found that the current density of the device always increases sharply to 1000mA/cm2 at about 3V bias, and the device does...

16 July 2024 4,291 0 View

What do you think are the key challenges that need to be addressed in the future development and application of these three devices?

Continuous glucose monitors (CGMs) help patients and doctors make more timely management decisions by monitoring blood glucose levels in real time. An insulin pump provides continuous insulin...

07 July 2024 7,742 0 View

What is the best software for simulation of mode locked diode laser?

Hi Dear All I would like to simulate a mode locked semiconductor laser. Does anyone know what is the best software to do it?

06 July 2024 1,648 4 View

Conjugate Pad absorption suddenly changed?

Hello, I am doing some testing on lateral flow devices/materials and have run into a slight issue where I do not understand what the cause may be, but I have some ideas. General Experimental...

01 July 2024 7,960 3 View

How will 5G impact the Internet of Things (IoT) and the connectivity of various smart devices and how will 5G revolutionize the Internet of Things?

28 June 2024 431 4 View

What's novel technological challenges presented by IoT relative to existing technological infrastructure & devices, if any & what makes them novel?

What are the novel technological challenges presented by IoT relative to existing technological infrastructure and devices, if any and what makes them novel?

26 June 2024 5,065 4 View