Firman Mangasa

8 Questions 35 Answers 0 Followers

Questions related from Firman Mangasa

Does a small shift (~0.3 eV to higher BE) of Cu2p3/2 peak represent anything?

A Cu/ZnO bilayer film is deposited with RF sputtering at room temperatureThe XPS-depth was conducted and we found that the Cu diffuse into ZnO2 layer.The Cu2p3/2 peak located at 932.6 eV (from Cu...

03 March 2017 6,133 4 View

Is it possible that a component at 530.6 eV is the lowest binding energy (in O1s core level)?

I prepared 2 films of Al-doped ZnO (2wt% AZO). Sample 1 is deposited under 1.2 mTorr and sample 2 is under 12 mTorr (both in Ar ambient, 130 Watt, RF Magnetron). The O1s core level of sample 2 is...

02 February 2015 6,535 14 View

Is there anyway to enhance the attachment between the glass substrate sample and TEM grid?

We prepared TEM sample (Si or Glass substrate) by FIB then loaded it to TEM Cu-grid. Unfortunately, the glass substrate sample seems doesn't well attached to the grid, and may flew away/dropped...

05 May 2014 3,806 4 View

How to prepare a nanofiber sample for Force Volume mode - AFM experiment?

I would like to measure mechanical properties of ceramic nanofiber (100-200 nm in diameter) by using Force Volume mode. Does anyone know how to prepare this kind of sample? Please find the SEM...

01 January 2014 5,866 7 View

Is there anyway to converge the PL laser spot?

I'd like to measure the defect contribution of 150 um in diameter MIM structure. However our PL laser spot is about 1mm. Is it possible for converged light to be 150um? By using additional...

01 January 2014 4,018 5 View

How to clean dust-like pollutant from thin film?

I grow ZnO nanorods film by using hydrothermal method as similar to this paper http://iopscience.iop.org/0957-4484/23/14/145201/article At the end of the synthesis I found dust-like particle...

05 May 2013 2,892 28 View

What changes will be exhibited in amorphous structure if we doped it with a compound?

For example, Si amorphous is doped with pentavalence element such as As and P. I know that there will be charge effect contribution due to this doping (according to its Kroger Vink Eq.) What I am...

11 November 2012 3,440 10 View

Could anyone explain Bipolar and Unipolar characteristic in RRAM devices?

Resistive Random Access Memory (RRAM) polarity can be distinguished as Bipolar and Unipolar. However I don't know which type of polarity is better and why.

10 October 2012 7,357 4 View