Abstract
The effects of annealing on gold structures sputtered onto glass substrate were studied using AFM, UV-Vis methods and electrical measurements. The colour of the as-deposited films changes from blue to green with increasing deposition time. After 1 hour annealing at 300°C the structures acquire red colour regardless of the film thickness. The annealing results in dramatic changes of surface morphology and roughness and creation of relatively large "spherolytic and hummock-like" structures in the gold layer. For deposited structures a non-zero optical band gap Eopt g was determined from UV-Vis spectra using Tauc's model and it indicates a semi-conducting character of the structures. The annealing leads to an increase of the band gap. Electrical resistance of the deposited unannealed structures decreases dramatically for deposition times above 50 s. For annealed structures the resistance fall comes until after 250 s deposition time.
| Original language | English |
|---|---|
| Pages (from-to) | 747-751 |
| Number of pages | 5 |
| Journal | Applied Physics A: Materials Science and Processing |
| Volume | 102 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 1 Mar 2011 |
| Externally published | Yes |
Fingerprint
ASJC Scopus subject areas
- Materials Science(all)
- Chemistry(all)
Cite this
Annealing of sputtered gold nano-structures. / Švorčík, V.; Kvítek, O.; Lyutakov, O.; Siegel, J.; Kolská, Z.
In: Applied Physics A: Materials Science and Processing, Vol. 102, No. 3, 01.03.2011, p. 747-751.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Annealing of sputtered gold nano-structures
AU - Švorčík, V.
AU - Kvítek, O.
AU - Lyutakov, O.
AU - Siegel, J.
AU - Kolská, Z.
PY - 2011/3/1
Y1 - 2011/3/1
N2 - The effects of annealing on gold structures sputtered onto glass substrate were studied using AFM, UV-Vis methods and electrical measurements. The colour of the as-deposited films changes from blue to green with increasing deposition time. After 1 hour annealing at 300°C the structures acquire red colour regardless of the film thickness. The annealing results in dramatic changes of surface morphology and roughness and creation of relatively large "spherolytic and hummock-like" structures in the gold layer. For deposited structures a non-zero optical band gap Eopt g was determined from UV-Vis spectra using Tauc's model and it indicates a semi-conducting character of the structures. The annealing leads to an increase of the band gap. Electrical resistance of the deposited unannealed structures decreases dramatically for deposition times above 50 s. For annealed structures the resistance fall comes until after 250 s deposition time.
AB - The effects of annealing on gold structures sputtered onto glass substrate were studied using AFM, UV-Vis methods and electrical measurements. The colour of the as-deposited films changes from blue to green with increasing deposition time. After 1 hour annealing at 300°C the structures acquire red colour regardless of the film thickness. The annealing results in dramatic changes of surface morphology and roughness and creation of relatively large "spherolytic and hummock-like" structures in the gold layer. For deposited structures a non-zero optical band gap Eopt g was determined from UV-Vis spectra using Tauc's model and it indicates a semi-conducting character of the structures. The annealing leads to an increase of the band gap. Electrical resistance of the deposited unannealed structures decreases dramatically for deposition times above 50 s. For annealed structures the resistance fall comes until after 250 s deposition time.
UR - http://www.scopus.com/inward/record.url?scp=79959342742&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=79959342742&partnerID=8YFLogxK
U2 - 10.1007/s00339-010-5977-5
DO - 10.1007/s00339-010-5977-5
M3 - Article
VL - 102
SP - 747
EP - 751
JO - Applied Physics
JF - Applied Physics
SN - 0340-3793
IS - 3
ER -