Characterization of Si Implantation and Annealing of InP by Raman Spectroscopy

1994 ◽  
Vol 354 ◽  
Author(s):  
L. Artus ◽  
R. Cusco ◽  
J.M. Martin ◽  
G. Gonzalez-Diaz

AbstractRaman scattering was used to assess the lattice damage caused by Si+ implantation in InP, as well as the lattice recovery achieved after rapid thermal annealing (RTA). Semi-insulating InP was implanted with Si+ with doses in the range of 1012 to 5xl014cm”2. Raman scattering measurements show a progressive intensity reduction of the characteristic first- and second-order InP Raman peaks and an enhancement of the disorder activated modes with increasing dose. The onset of amorphization was found to be at about 1014 cm”2. RTA of the implanted samples at 875 °C for 10s results in a very good recovery of the InP lattice even for the highest dose, as confirmed by Raman scattering measurements.

1989 ◽  
Vol 164 ◽  
Author(s):  
P.M Fauchet ◽  
I.H. Campbell

AbstractRaman scattering is becoming a widely used tool for the characterization of semiconductor microcrystals due to its sensitivity to crystal sizes below a few hundred angstroms. Through detailed analysis of the first order Raman spectrum it is possible to determine the size and shape of microcrystalline grains. First order spectra must be examined with care however, since they are sensitive to other factors including: stress/strain, surface vibrations, mixed amorphous/microcrystalline phases and intragrain defects. Second order Raman spectra are more sensitive to microcrystalline effects than first order spectra. They offer the potential to measure crystal sizes greater than a few hundred angstroms but much work remains to be done to quantify the size dependence of the second order spectra.


1999 ◽  
Vol 144-145 ◽  
pp. 697-701 ◽  
Author(s):  
W.K Choi ◽  
S Kanakaraju ◽  
Z.X Shen ◽  
W.S Li

1989 ◽  
Vol 66 (10) ◽  
pp. 4775-4779 ◽  
Author(s):  
M. de Potter ◽  
W. De Raedt ◽  
M. Van Hove ◽  
G. Zou ◽  
H. Bender ◽  
...  

2012 ◽  
Vol 27 (9) ◽  
pp. 1314-1323 ◽  
Author(s):  
Chun-Wei Chang ◽  
Min-Hao Hong ◽  
Wei-Fan Lee ◽  
Kuan-Ching Lee ◽  
Li-De Tseng ◽  
...  

Abstract


AIP Advances ◽  
2012 ◽  
Vol 2 (3) ◽  
pp. 032150 ◽  
Author(s):  
Min-Hao Hong ◽  
Chun-Wei Chang ◽  
Dung-Ching Perng ◽  
Kuan-Ching Lee ◽  
Shiu-Ko Jang Jian ◽  
...  

Materials ◽  
2019 ◽  
Vol 12 (23) ◽  
pp. 3928 ◽  
Author(s):  
Kashif Shahzad ◽  
Kunpeng Jia ◽  
Chao Zhao ◽  
Dahai Wang ◽  
Muhammad Usman ◽  
...  

The effect of ion-induced defects on graphene was studied to investigate the contact resistance of 40 nm palladium (Pd) contacting on graphene. The defect development was considered and analyzed by irradiating boron (B), carbon (C), nitrogen (N2), and argon (Ar) ions on as-transferred graphene before metallization. The bombardment energy was set at 1.5 keV and ion dose at 1 × 1014 ions/cm2. The defect yields under different ion irradiation conditions were examined by Raman spectroscopy. Although, dissolution process occurs spontaneously upon metal deposition, chemical reaction between metal and graphene is more pronounced at higher temperatures. The rapid thermal annealing (RTA) treatment was performed to improve the Pd/graphene contact after annealing at 450 °C, 500 °C, 550 °C, and 600 °C. The lowest contact resistance of 95.2 Ω-µm was achieved at 550 °C RTA with Ar ion irradiation. We have proved that ion irradiation significantly enhance the Pd/graphene contact instead of pd/pristine graphene contact. Therefore, in view of the contention of results ion induced defects before metallization plus the RTA served an excellent purpose to reduce the contact resistance.


1986 ◽  
Vol 69 ◽  
Author(s):  
D. Kirillov ◽  
P. Ho ◽  
G. A. Davis

AbstractRaman scattering was applied to study mixing of GaAs/AlAs superlattices. Different implantation ions and doses were used. The evolution from partially amorphous to completely amorphous and from partially mixed to completely mixed structures was observed. Rapid thermal annealing caused recrystallization of the damaged material. Different types of structures were obtained, depending on the implantation doses and species of ions. Completely mixed crystalline alloys could be obtained only for high implantation doses.


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