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1. 中国科学院 激发态物理重点实验室 长春光学精密机械与物理研究所,吉林 长春,130033
2. 海南师范大学 物理与电子工程学院,海南 海口,571158
收稿日期:2010-10-08,
修回日期:2011-03-22,
网络出版日期:2011-06-22,
纸质出版日期:2011-06-22
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张铁民, 缪国庆, 傅军, 符运良, 林红. 利用In<sub>0.82</sub>Ga<sub>0.18</sub>As与InP衬底之间的应力制作结构材料的缓冲层[J]. 发光学报, 2011,32(6): 612-616
ZHANG Tie-min, MIAO Guo-qing, FU Jun, FU Yun-liang, LIN Hong. Preparation of Buffer by The Stress Between In<sub>0.82</sub>Ga<sub>0.18</sub>As Layer and InP Substrate[J]. Chinese Journal of Luminescence, 2011,32(6): 612-616
张铁民, 缪国庆, 傅军, 符运良, 林红. 利用In<sub>0.82</sub>Ga<sub>0.18</sub>As与InP衬底之间的应力制作结构材料的缓冲层[J]. 发光学报, 2011,32(6): 612-616 DOI: 10.3788/fgxb20113206.0612.
ZHANG Tie-min, MIAO Guo-qing, FU Jun, FU Yun-liang, LIN Hong. Preparation of Buffer by The Stress Between In<sub>0.82</sub>Ga<sub>0.18</sub>As Layer and InP Substrate[J]. Chinese Journal of Luminescence, 2011,32(6): 612-616 DOI: 10.3788/fgxb20113206.0612.
采用低压金属有机化学气相淀积(LP-MOCVD)技术
在InP (100)衬底上生长In
0.82
Ga
0.18
As
研究生长温度对In
0.82
Ga
0.18
As材料表面形貌、结晶质量和电学性能的影响。利用InP(100)衬底与In
0.82
Ga
0.18
As材料晶格失配所产生的应变
在不同的生长温度下应变释放程度不同
进而在In
0.82
Ga
0.18
As表面形成不同类型的缓冲层。分析不同的缓冲层对外延层In
0.82
Ga
0.18
As的影响
从而优化出最佳的生长温度。
In
0.82
Ga
0.18
As layers were grown on semi-insulating Fe-doped InP (100) substrates by low pressure metalorganic chemical vapor deposition (LP-MOCVD). The growth was performed using TMIn
TMGa
and AsH
3
as growth precursors of In
Ga
and As
respectively
in a horizontal reactor. The substrate on a graphite susceptor was heated by inductively coupling radio frequency power
the growth temperature was detected by a thermocouple
and the reactor pressure was kept at 110
4
Pa. Thickness of In
0.82
Ga
0.18
As layer for all samples was kept to be 300 nm. In our experiments
the growth temperature of In
0.82
Ga
0.18
As layers was 390
410
430
450
470
530 ℃
respectively. Because the strain caused by the lattice mismatch between In
0.82
-Ga
0.18
As layer and InP substrate was varied from the growth temperature
the surface of In
0.82
Ga
0.18
As layer was different. It was analyzed that the growth temperature of In
0.82
Ga
0.18
As layer influenced on the surface morphology
crystalline quality and the electrical property of the In
0.82
Ga
0.18
As layer. The surface morphology of In
0.82
Ga
0.18
As layer was studied by the scanning electron microscopy (SEM). The components and crystalline quality of In
0.82
Ga
0.18
As layer were characterized by X-ray diffraction (XRD). The electrical property of In
0.82
Ga
0.18
As layer was measured using the Hall Effect. This work shows a useful way how to design for the optimum buffer in growthing highly mismatched epitaxy layers.
Nagai H, Noguchi Y, Crack formation in InP-GaxIn1-xAs-InP double heterostructure fabrication [J]. Appl. Phys. Lett., 1976, 29 (11):740-741.[2] Bandy S, Nishimoto C, Hyder S, et al. Saturation velocity determination for In0.53Ga0.47As field-effect transistors [J]. Appl. Phys. Lett., 1981, 38 (10):817-819.[3] Murray S L, Newman F D, Murray C S, et al. MOCVD growth of lattice matched and mismatched InGaAs materials for thermophotovoltaic energy conversion [J]. Semicond. Sci. Technol., 2003, 18 (5):s202-s208.[4] Bachmann K J, Shay J L, An InGaAs detector for the 1.0-1.7-m wavelength range [J]. Appl. Phys. Lett., 1978, 32 (7):446-448.[5] Ducommun Y, Kroutvar M, Finley J J, et al. Dynamics of optically stored charges in InGaAs quantum dots [J]. Physica E, 2004, 21 (2-4):886-891.[6] Hoogeveen R W M, van der A R J, Goede A P H. Extended wavelength InGaAs infrared (1.0~2.4m) detector arrays on SCIAMACHY for space based spectrometry of the earth atmosphere [J]. Infrared Phys. Techn., 2001, 42 (1):1-16.[7] Mathews J W, Mader S, Light T B. Accommodation of misfit across the interface between crystals of semiconducting elements or compounds [J]. J. Appl. Phys., 1970, 41 (9):3800-3805.[8] Fitzgerald E A, Watson G P, Proano R E, et al. Nucleation mechanisms and the elimination of misfit dislocations at mismatched interfaces by reduction in growth area [J]. J. Appl. Phys., 1989, 65 (6):2220-2237.[9] Guha S, Madhukar A, Chen Li, Defect reduction in strained InxGa1-xAs via growth on GaAs(100) substrates patterned to submicron dimensions [J]. Appl. Phys. Lett., 1990, 56 (23):2304-2306.[10] Zhang Tiemin, Miao Guoqing, Song Hang, et al. Effect of buffer layer growth temperature on structural and electrical properties of In0.82Ga0.18As with two step growth technique [J]. Chin. J. Lumin. (发光学报), 2009, 30 (6):787-791 (in English).[11] Goldman R S, Chang J C P, Kavanagh K L, Control of surface morphology and strain relaxation of InGaAs grown on GaAs using a step-graded buffer [J]. SPIE, 1994, 2140 :179-188.
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