Chin. Phys. Lett.  2000, Vol. 17 Issue (8): 615-616    DOI:
Original Articles |
Excitation Transfer in Vertically Self-organized Pairs of Unequal-Sized InAs/GaAs Quantum Dots
WANG Hai-Long;FENG Song-Lin;YANG Fu-Hua;SUN Bao-Quan;JIANG De-Sheng
National Laboratory for Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083
Cite this article:   
WANG Hai-Long, FENG Song-Lin, YANG Fu-Hua et al  2000 Chin. Phys. Lett. 17 615-616
Download: PDF(213KB)  
Export: BibTeX | EndNote | Reference Manager | ProCite | RefWorks
Abstract The excitation transfer processes in vertically self-organized pairs of unequal-sized quantum dots (QD’s), which are created in InAs/GaAs bilayers with different InAs deposition amounts in the first and second layers, have been investigated experimentally by photoluminescence technique. The distance between the two dot layers is varied from 3 to 12nm. The optical properties of the formed pairs of unequal-sized QD’s with clearly discernible ground-state transition energy depend on the spacer thickness. When the spacer layer of GaAs is thin enough, only one photoluminescence peak related to the large QD ensemble has been observed as a result of strong electronic coupling in the InAs QD pairs. The results provide evidence for nonresonant energy transfer from the smaller QDs in the second layer to the larger QD’s in the first layer in such an asymmetric QD pair.
Keywords: 78.66.Fd      73.20.Dx      73.61.-r     
Published: 01 August 2000
PACS:  78.66.Fd (III-V semiconductors)  
  73.20.Dx  
  73.61.-r (Electrical properties of specific thin films)  
TRENDMD:   
URL:  
https://cpl.iphy.ac.cn/       OR      https://cpl.iphy.ac.cn/Y2000/V17/I8/0615
Service
E-mail this article
E-mail Alert
RSS
Articles by authors
WANG Hai-Long
FENG Song-Lin
YANG Fu-Hua
SUN Bao-Quan
JIANG De-Sheng
Related articles from Frontiers Journals
[1] TENG Long, ZHANG Rong, XIE Zi-Li, TAO Tao, ZHANG Zhao, LI Ye-Cao, LIU Bin, CHEN Peng, HAN Ping, ZHENG You-Dou. Raman Scattering Study of InxGa1−xN Alloys with Low Indium Compositions[J]. Chin. Phys. Lett., 2012, 29(2): 615-616
[2] WANG Fei, **, ZHANG Xin-Liang, YU Yu, XU En-Ming . Preprocessing-Free All-Optical Clock Recovery from NRZ and NRZ-DPSK Signals Using an FP-SOA Based Active Filter[J]. Chin. Phys. Lett., 2011, 28(6): 615-616
[3] GAO Bo**, LIU Hong-Xia, WANG Shu-Long . AlGaN/GaN Ultraviolet Detector with Dual Band Response[J]. Chin. Phys. Lett., 2011, 28(5): 615-616
[4] XU Yue-Hua, JIA Yong-Lei, ZHOU Jian, DONG Jin-Ming. Infrared Absorption Spectra of Undoped and Doped Few-Layer Graphenes[J]. Chin. Phys. Lett., 2010, 27(5): 615-616
[5] TANG Guang-Hua, XU Bo, JIANG Li-Wen, KONG Jin-Xia, KONG Ning, LIANG De-Chun, LIANG Ping, YE Xiao-Ling, JIN Peng, LIU Feng-Qi, CHEN Yong-Hai, WANG Zhan-Guo. A Photovoltaic InAs Quantum-Dot Infrared Photodetector[J]. Chin. Phys. Lett., 2010, 27(4): 615-616
[6] YU Hai-Ming, S. Granville, YU Da-Peng, J-Ph. Ansermet. Second Harmonic Detection of Spin-Dependent Transport in Magnetic Nanostructures[J]. Chin. Phys. Lett., 2010, 27(2): 615-616
[7] WANG Hua-Lin, DING Wan-Yu, LIU Chao-Qian, CHAI Wei-Ping. Influence of O2 Flux on Compositions and Properties of ITO Films Deposited at Room Temperature by Direct-Current Pulse Magnetron Sputtering[J]. Chin. Phys. Lett., 2010, 27(12): 615-616
[8] LU Hui-Min, CHEN Gen-Xiang, JIAN Shui-Sheng. Design of Phosphor-Free Single-Chip White Light-Emitting Diodes Using InAlGaN Irregular Multiple Quantum Well Structures[J]. Chin. Phys. Lett., 2009, 26(8): 615-616
[9] RUAN Jun, YU Tong-Jun, JIA Chuan-Yu, TAO Ren-Chun, WANGZhan-Guo, ZHANG Guo-Yi. Indium-Induced Effect on Polarized Electroluminescence from InGaN/GaN MQWs Light Emitting Diodes[J]. Chin. Phys. Lett., 2009, 26(8): 615-616
[10] LIAO Zhong-Wei, GOU Hong-Yan, HUANG Yue, SUN Qing-Qing, DING Shi-Jin, ZHANG Wei, ZHANG Shi-Li,. Robust Low Voltage Program-Erasable Cobalt-Nanocrystal Memory Capacitors with Multistacked Al2O3/HfO2/Al2O3 Tunnel Barrier[J]. Chin. Phys. Lett., 2009, 26(8): 615-616
[11] A. John Peter, K. Navaneethakrishnan. Hydrogenic Donor in a Spherical Quantum Dot with Different Confinements[J]. Chin. Phys. Lett., 2009, 26(8): 615-616
[12] FAN Ya-Ming, ZHANG Xing-Wang, YOU Jing-Bi, YING Jie, TAN Hai-Ren, CHEN Nuo-Fu. Growth-Parameter Spaces and Optical Properties of Cubic Boron Nitride Films on Si(001)[J]. Chin. Phys. Lett., 2009, 26(5): 615-616
[13] ZHANG Li, HE Qing, JIANG Wei-Long, LI Chang-Jian, SUN Yun. Cu(In, Ga)Se2 Thin Films on Flexible Polyimide Sheet: Structural and Electrical Properties versus Composition[J]. Chin. Phys. Lett., 2009, 26(2): 615-616
[14] XIONG Yong-Hua, NIU Zhi-Chuan, DOU Xiu-Ming, SUN Bao-Quan, HUANG She-Song, NI Hai-Qiao, DU Yun, XIA Jian-Bai. Electrically Driven InAs Quantum-Dot Single-Photon Sources[J]. Chin. Phys. Lett., 2009, 26(2): 615-616
[15] WANG Hai-Li, XIONG Yong-Hua, HUANG She-Song, NI Hai-Qiao, HE Zhen-Hong, DOU Xiu-Ming, NIU Zhi-Chuan. Photoluminescence of Charged Low-Density InAs/GaAs Quantum Dots[J]. Chin. Phys. Lett., 2009, 26(10): 615-616
Viewed
Full text


Abstract