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Volumn 102, Issue 1, 2007, Pages

Comparative investigation of InGaN quantum well laser diode structures grown on freestanding GaN and sapphire substrates

Author keywords

[No Author keywords available]

Indexed keywords

ACTIVATION ENERGY; GALLIUM NITRIDE; OPTICAL PROPERTIES; PIEZOELECTRICITY; SAPPHIRE; SEMICONDUCTING INDIUM COMPOUNDS; SUBSTRATES;

EID: 34547213822     PISSN: 00218979     EISSN: None     Source Type: Journal    
DOI: 10.1063/1.2749281     Document Type: Article
Times cited : (18)

References (13)
  • 2
    • 0043100979 scopus 로고    scopus 로고
    • 0021-4922 10.1143/JJAP.36.L1568
    • S. Nakamura, Jpn. J. Appl. Phys., Part 2 0021-4922 10.1143/JJAP.36.L1568 36, L1568 (1997); S. Nakamura, Appl. Phys. Lett. 0003-6951 10.1063/1.120688 72, 211 (1998).
    • (1997) Jpn. J. Appl. Phys., Part 2 , vol.36 , pp. 1568
    • Nakamura, S.1
  • 3
    • 0043100979 scopus 로고    scopus 로고
    • 0003-6951 10.1063/1.120688
    • S. Nakamura, Jpn. J. Appl. Phys., Part 2 0021-4922 10.1143/JJAP.36.L1568 36, L1568 (1997); S. Nakamura, Appl. Phys. Lett. 0003-6951 10.1063/1.120688 72, 211 (1998).
    • (1998) Appl. Phys. Lett. , vol.72 , pp. 211
    • Nakamura, S.1
  • 8
    • 34547189716 scopus 로고    scopus 로고
    • We do not totally rule out a possible influence of different thermal conductivities of the two substrates with buffer layers during the MOCVD growth. Based on our results, however, the influence of different thermal conductivity may be negligible in our case. For instance, if the actual LD growth temperature of sample G was higher than sample S, both the emissions from InGaN barriers and wells in sample G should have shown blueshift behaviors, since In incorporation would be reduced at a relatively higher growth temperature. However, the opposite direction of InGaN-related peak shifts (i.e., redshift for Iny Ga1-y N layers and the blueshift for Inx Ga1-x N wells) observed in sample G cannot be explained in terms of the difference in thermal conductivities.
    • We do not totally rule out a possible influence of different thermal conductivities of the two substrates with buffer layers during the MOCVD growth. Based on our results, however, the influence of different thermal conductivity may be negligible in our case. For instance, if the actual LD growth temperature of sample G was higher than sample S, both the emissions from InGaN barriers and wells in sample G should have shown blueshift behaviors, since In incorporation would be reduced at a relatively higher growth temperature. However, the opposite direction of InGaN-related peak shifts (i.e., redshift for Iny Ga1-y N layers and the blueshift for Inx Ga1-x N wells) observed in sample G cannot be explained in terms of the difference in thermal conductivities.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.