Abstract
Dominant free-exciton recombination radiation has been obtained from chemical vapor deposited diamonds. The crystals are formed in a microwave plasma using the mixtures CO and CO2 diluted with hydrogen. The concentration of CO2 and the position of the samples in the plasma affect the crystallinity of the samples. The peak emission intensity ratio between the free-exciton recombination radiation and the band A emission is more than 20 in the samples formed at the edge of discharging area and with the optimum concentration of CO2. The value is the highest ever reported in diamond.
| Original language | English |
|---|---|
| Pages (from-to) | 451-453 |
| Number of pages | 3 |
| Journal | Applied Physics Letters |
| Volume | 64 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - 1994 |
Fingerprint
ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)
Cite this
Dominant free-exciton recombination radiation in chemical vapor deposited diamonds. / Kawarada, Hiroshi; Tsutsumi, Takahiro; Hirayama, Hiroki; Yamaguchi, Akira.
In: Applied Physics Letters, Vol. 64, No. 4, 1994, p. 451-453.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Dominant free-exciton recombination radiation in chemical vapor deposited diamonds
AU - Kawarada, Hiroshi
AU - Tsutsumi, Takahiro
AU - Hirayama, Hiroki
AU - Yamaguchi, Akira
PY - 1994
Y1 - 1994
N2 - Dominant free-exciton recombination radiation has been obtained from chemical vapor deposited diamonds. The crystals are formed in a microwave plasma using the mixtures CO and CO2 diluted with hydrogen. The concentration of CO2 and the position of the samples in the plasma affect the crystallinity of the samples. The peak emission intensity ratio between the free-exciton recombination radiation and the band A emission is more than 20 in the samples formed at the edge of discharging area and with the optimum concentration of CO2. The value is the highest ever reported in diamond.
AB - Dominant free-exciton recombination radiation has been obtained from chemical vapor deposited diamonds. The crystals are formed in a microwave plasma using the mixtures CO and CO2 diluted with hydrogen. The concentration of CO2 and the position of the samples in the plasma affect the crystallinity of the samples. The peak emission intensity ratio between the free-exciton recombination radiation and the band A emission is more than 20 in the samples formed at the edge of discharging area and with the optimum concentration of CO2. The value is the highest ever reported in diamond.
UR - http://www.scopus.com/inward/record.url?scp=0001109360&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0001109360&partnerID=8YFLogxK
U2 - 10.1063/1.111126
DO - 10.1063/1.111126
M3 - Article
VL - 64
SP - 451
EP - 453
JO - Applied Physics Letters
JF - Applied Physics Letters
SN - 0003-6951
IS - 4
ER -