Role of microstructure in porous silicon gas sensors for NO$_2$

Details Role of microstructure in porous silicon gas sensors for NO$_2$ Role of microstructure in porous silicon gas sensors for NO$_2$

2003-11-12

arxiv.org/abs/cond-mat/0311275v1

Physics

Condensed Matter

Materials Science

3 pages, 4 figures, package SIunits required

Scientific paper

10.1063/1.1775887

Electrical conductivity of porous silicon fabricated form heavily doped p-type silicon is very sensitive to NO$_2$, even at concentrations below 100 ppb. However, sensitivity strongly depends on the porous microstructure. The structural difference between sensitive and insensitive samples is independently confirmed by microscopy images and by light scattering behavior. A way to change the structure is by modifying the composition of the electrochemical solution. We have found that best results are achieved using ethanoic solutions with HF concentration levels between 13% and 15%.

Affiliated with

Also associated with

No associations

Rating

Role of microstructure in porous silicon gas sensors for NO$_2$ does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Role of microstructure in porous silicon gas sensors for NO$_2$, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Role of microstructure in porous silicon gas sensors for NO$_2$ will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-337220