Why do some researchers use step voltage before light pulse in TOF mobility measurement?

I have seen some researchers using constant bias while some researchers using step voltage before the light pulse in doing Time of Flight charge carrier mobility measurement. In a practical...

05 June 2018 1,767 0 View

Does Poole-Frenkel emission shift cross-over voltage of space charge effect?

It is well known that conductivity of insulator increases with electric field because of increased carrier concentration by Poole-Frenkel emission. There is a renowned paper by Murgatroyd dealing...

05 June 2016 3,125 3 View

Any suggestions of references for transient photocurrent (like TOF) in amorphous semiconductors with uniform absorption?

01 February 2016 1,902 2 View

Can anyone help me understand the true lifetime in semiconductors/insulators?

Suppose that I am doing photoconductivity experiment with some intrinsic semiconductor/insulator. When light generates e-h pairs, under basic assumption, they are pulled opposite way by applied...

05 June 2015 4,400 2 View

Do UV-VIS spectrometers take care of reflectance?

Trying to obtain absorption coefficient from absorbance data. (HP 8453 Spectrometer). When a UV-VIS spectrometer measures absorbance as A = log10(I0/I) how does it determine that the loss in the...

05 June 2015 7,799 6 View

Can anyone please suggest good source materials for geometries and fabrications of contacts for semiconductor (wafer/Thin film) characterization?

04 May 2015 8,050 4 View

How do holes recombine with electrons in single carrier type steady state conduction?

Suppose that e-h pairs are generated on anode surface of an insulator by surface absorption of light. some of the electrons recombine there in surface very shortly. The remaining electrons are...

01 February 2015 413 4 View

Please suggest a good book in dielectric relaxation theories with mathematical details?

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03 April 2014 5,676 1 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

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

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

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

Gas sensor response and recovery time independant of flow rate and chamber volume?

I am trying to obtain the response and recovery times for my gas sensor device. It appears the the response/recovery times are primarily dependant on the flow rate of the gas I inject into the...

26 February 2021 1,511 3 View

How to calculate battery consumption for IoT device?

Hi, everyone I'm working on a privacy-preserving algorithm that will apply to IoT devices. So, I need to measure the power consumption by implementing this algorithm. Any suggestion, advice,...

25 February 2021 8,749 6 View

How the Ground Plane implantation is performed without damaging (and w/o varying the undoped nature) the top Si (8-10 nm) in FDSOI technology ?

It is a general practice to introduce Ground Plane in FDSOI devices under the BoX. The Ground Planes are introduced by Ion Implantation through Top Si layer and Buried Oxide. I wanted to know that...

24 February 2021 5,974 4 View

How to troubleshoot Electrochromic Films and Electrochromic Devices?

I am trying to characterize an electrochromic system. The system uses ITO electrodes on glass, WO3 as the electrochromic film, and NiO as the ion storage layer. When I deposit NiO and WO3 and...

23 February 2021 9,592 2 View

Can a semi-conductor material have different absorption coefficient?

Does the absorption coefficient of the semiconductor changes with the change in the structure of the semiconductor? If you have a thin film and nanowire of the same semiconductor, will the...

23 February 2021 9,799 4 View

How can we determine the band gap of a composite material that is made up of a composition of direct and indirect band gap semiconductor materials?

I have a direct band gap material and an indirect band gap material. If I made a composite of both through physical mixing. Then how can I determine the band gap of such a material as the Tauc...

17 February 2021 8,104 4 View