Electrical effect of porous silicon doped with erbium / Zetty Daud

Daud, Zetty (2011) Electrical effect of porous silicon doped with erbium / Zetty Daud. [Student Project] (Unpublished)

Abstract

Porous Silicon (PSi) is a form of the chemical element silicon which has an introduced nanoporous hole in its microstructure. In its natural state, it is highly resistive, insulative and its open structure allows doping foreign element/elements into porous silicon. Porous Silicon (PSi) was prepared by electrochemical etching using a p-type Si wafer substrate with constant current density, 20mA/cm2. Ethanoic hydrofluoric acid (HF) 48% electrolyte and ethanol (C2H5OH) at ratio 1:1 electrolyte was used. Then, the samples were doping with Erbium (III) nitrate pentahydrate (Er3N030H5) by using the immersion vibrating technique. Porous silicon doped with Er3N030H5 was coated with gold by using the sputtering technique to make a metal contact. Finally, samples were tested by using IV testing. The result shows that when the Er3N030H5 is diffused into porous silicon, only 0.05gof Er3N030H5 able to diffuse into the pores, and the other sample, erbium had been gathered on the surface of the sample. The resistance of porous silicon (PSi) is increased drastically when the mass of erbium increases. The mass of Er3N030H5 increases the conductivity values of porous silicon doped with ErN03.

Metadata

Item Type: Student Project
Creators:
Creators
Email / ID Num.
Daud, Zetty
UNSPECIFIED
Contributors:
Contribution
Name
Email / ID Num.
Advisor
Ikhsan, Nurul Izrini
UNSPECIFIED
Subjects: Q Science > QC Physics > Electricity and magnetism > Electricity
Q Science > QC Physics > Electricity and magnetism > Electricity > Electric current (General) > Electric conductivity
Divisions: Universiti Teknologi MARA, Shah Alam > Faculty of Applied Sciences
Programme: Bachelor of Science (Hons.) Industrial Physics
Keywords: Porous silicon, Nanoporous holes, Ethanoic hydrofluoric acid (HF)
Date: 2011
URI: https://ir.uitm.edu.my/id/eprint/45493
Edit Item
Edit Item

Download

[thumbnail of 45493.pdf] Text
45493.pdf

Download (123kB)

Digital Copy

Digital (fulltext) is available at:

Physical Copy

Physical status and holdings:
Item Status:

ID Number

45493

Indexing

Statistic

Statistic details