Why drift current is independent of the bias voltage in a pn junction?

03 March 2018 1 10K Report

Can anyone explains that why drift current is independent of the bias voltage?

I thought the drift current is dependent on the bias voltage. The drift current equation tells us that the drift current is dependent on number of carriers, carrier mobilities and Electric field. Since electric field is dependent on the bias voltage, then how come the drift current is independent of the bias voltage?

Tony Maine

The applied electric field is of the order of volts per micron; the drift current depends in interatomic fields of the order of volts per angstrom, far far higher.

Badges
Science topic

More Chenjin Lu's questions See All

How surface recombination velocity at the junction interface affects the schottky junction solar cells transport?

It is generally known that a higher surface recombination velocity (SRV) tends to lower the device performance (e.g. Voc) due to a higher recombination at the metal and semiconductor interface....

06 July 2019 4,897 3 View

What is the most useful book to study electrochemical deposition?

I am very new to the area of thin film fabrication using electrochemical deposition method. Thus could any one inform me what is the most useful book or studying material for one who wants to...

08 September 2018 2,295 0 View

What would be the doping concentration of TMO material such as MoOx, NiO, TiOx??

Can any one share with me the paper that has deep discussion about the doping density in those Transitional Metal Oxides (TMOs) material?? I find that in those literature that people reported...

07 August 2018 4,775 0 View

Can Silvaco TCAD simulation model TCO layer (e.g. ITO)?

Hi I want to simulate ITO/c-Si junction behavior and solar cell performance. Therefore, here comes to a question about Silvaco TCAD simulator. Is that possible to model TCO layer such as ITO as a...

05 June 2018 7,065 5 View

How to effectively disperse nanoparticles in organic solvent?

Hi all, I want to disperse Mo nanopowder into IPA solvent. I am planning to adding some dispersing agent and use ultrasonic treatment. However, I am not sure what kind of dispersing agent should...

09 October 2017 2,289 2 View

How to determine metal particles within the films?

Hi all, I prepared some transitional metal oxide solution by mixing nano powder transitional metal with organic solvent and some H2O2. Then I deposited the solution on silicon using spin coating....

09 October 2017 9,893 9 View

How to measure the resistivity of transition metal oxide?

How can I measure the transition metal oxide thin film electrical property, especially for some low conductivity film like MoO3.

06 July 2017 2,970 3 View

What should be done for boiling hydrogen peroxide and ethanol solution?

Hi, I am planning to boiling the solution with mixture of hydrogen peroxide and ethanol. What safety issue it may be exposed to and what should I do to prevent it? Should I evaporize the solution...

01 February 2017 3,858 4 View

Loss and absorption property of oxidized element?

01 February 2017 3,776 2 View

Why Si surface is hydrophobic after cleaning with HF solution?

From what I know is after HF etching of the Si surface, the SiOx is removed and the surface is left with H-terminal on top of Si. Since H is more electronegative than Si, As a result H is negative...

31 December 2016 2,388 4 View

Physics: Why do we describe light by referring to its wavelength, but microwaves and radar pulses by referring to their frequency?

In physics, the description of the properties of light generally refers to its wavelength (nm), while in the range of microwaves and radio waves we refer to the frequency of a signal (e.g. kHz or...

03 March 2021 1,682 3 View

What is the most Operating System (OS) which can be INSTALL on Tiny hard devices like Raspberry Pi (RPi) hardware ?

I'm targeting to deploy a mesh network and manually configure MANET routing protocols. I'm preparing scenarios, architectures, and hard devices needed to do that. Are there some step-by-step...

03 March 2021 1,931 5 View

How to manually calculate p value in ANOVA? what is the equation or formula for it?

03 March 2021 4,928 5 View

Can we classify HV and LV lines based on line length?

I have dataset which shows the length of power lines. I need to classify the lines based on the line length. Is there a rule to classify the High voltage (HV) and low voltage (LV) lines based on...

03 March 2021 4,116 4 View

Waters 2707 HPLC autosampler problem?

I am using a 2707 waters HPLC device. When I try to inject a sample, it says missing plate or rack. I changed the needle and calibrated its position but I still get the same problem. I even get...

02 March 2021 1,408 1 View

Is there any effect of different colours of light (white, red, yellow, blue etc.) on the rate of photosynthesis? If yes, why?

Light is inevitable for the process of photosynthesis reaction. Naturally sunlight plays the vital role for this process. Light may be of different colours like white, red, yellow, blue etc....

02 March 2021 7,890 2 View

What are anisotropic electrical and optical properties of a semiconductor due to?

In some materials, properties such as band gap, thermal conductivity differ along different crystallographic axes. What are the basics?

01 March 2021 1,923 3 View

No title

01 March 2021 3,905 5 View

How can I integrate a routing protocol in a tiny device (e.g. Raspberry Pi)?

Hi Community, I'm facing the issue of integration/compiling a new routing protocol in a WSN simulator. The final goal is to successfully add, configure this routing protocol in hardware devices...

01 March 2021 9,332 6 View

Is it necessary to report effect size (ES) in statistics of biomedical research given that we already report p values routinely?

Pls share your thoughts

01 March 2021 7,330 4 View