Reversal of the Charge Transfer between Host and Dopant Atoms in Semiconductor Nanocrystals

Details Reversal of the Charge Transfer between Host and Dopant Atoms in Semiconductor Nanocrystals Reversal of the Charge Transfer between Host and Dopant Atoms in Semiconductor Nanocrystals

2004-03-18

arxiv.org/abs/cond-mat/0403483v1

Physics

Condensed Matter

Materials Science

4 pages, 4 figures (3 in color), 2 tables

Scientific paper

We present ab initio density functional calculations that show P (Al) dopant atoms in small hydrogen-terminated Si crystals to be negatively (positively) charged. These signs of the dopant charges are reversed relative to the same dopants in bulk Si. We predict this novel reversal of the dopant charge (and electronic character of the doping) to occur at crystal sizes of order 100 Si atoms. We explain it as a result of competition between fundamental principles governing charge transfer in bulk semiconductors and molecules and predict it to occur in nanocrystals of most semiconductors.

Affiliated with

Also associated with

No associations

Rating

Reversal of the Charge Transfer between Host and Dopant Atoms in Semiconductor Nanocrystals 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 Reversal of the Charge Transfer between Host and Dopant Atoms in Semiconductor Nanocrystals, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Reversal of the Charge Transfer between Host and Dopant Atoms in Semiconductor Nanocrystals will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-525080