EXCITON TRANSFER DYNAMICS IN CDTE/(CD,ZN)TE ASYMMETRIC DOUBLE-QUANTUM-WELL STRUCTURES

被引：10

作者：

HAACKE, S

PELEKANOS, NT

MARIETTE, H

HEBERLE, AP

RUHLE, WW

ZIGONE, M

机构：

[1] CEA,CNRS,JOINT GRP MICROSTRUCT SEMICONDUCT II VI,F-38042 GRENOBLE,FRANCE

[2] MAX PLANCK INST FESTKORPERFORSCH,D-70506 STUTTGART,GERMANY

来源：

JOURNAL OF CRYSTAL GROWTH | 1994年 / 138卷 / 1-4期

关键词：

D O I：

10.1016/0022-0248(94)90916-4

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

Time-resolved photoluminescence measurements on CdTe/(Cd,Zn)Te asymmetric double quantum wells (ADQWs) with electron and hole confinement potentials of some tens of meV are reported. The carrier transfer from the narrow into the wide well is evidenced by photoluminescence decay times of the narrow well as short as a few picoseconds. The observed tunneling times depend strongly upon the barrier and well widths of the investigated samples which determine the relative position of spatial direct and cross exciton transitions. Very efficient tunneling is found in ADQWs in which the transfer of spatial direct excitons under emission of LO phonons is possible. In any case, one has to consider excitonic rather than single particle electron or hole states in order to explain the observed behaviour of the tunneling times.

引用

收藏

页码：831 / 837

页数：7

相关论文

共 20 条

[1] CALCULATION OF ENERGY-BAND PRESSURE COEFFICIENTS FROM DIELECTRIC THEORY OF CHEMICAL BOND [J].

CAMPHAUSEN, DL ;

CONNELL, GAN ;

PAUL, W .

PHYSICAL REVIEW LETTERS, 1971, 26 (04) :184-+

[2] TRANSFORMATION OF SPATIALLY DIRECT TO SPATIALLY INDIRECT EXCITONS IN COUPLED DOUBLE QUANTUM WELLS [J].

CHARBONNEAU, S ;

THEWALT, MLW ;

KOTELES, ES ;

ELMAN, B .

PHYSICAL REVIEW B, 1988, 38 (09) :6287-6290

[3] QUANTIZATION OF EXCITONIC POLARITONS IN CDTE-CDZNTE DOUBLE HETEROSTRUCTURES [J].

DAUBIGNE, YM ;

DANG, LS ;

WASIELA, A ;

MAGNEA, N ;

DALBO, F ;

MILLION, A .

JOURNAL DE PHYSIQUE, 1987, 48 (C-5) :363-366

[4] TIME-RESOLVED EXCITON TRANSFER IN GAAS/ALXGA1-XAS DOUBLE-QUANTUM-WELL STRUCTURES [J].

FERREIRA, R ;

ROLLAND, P ;

ROUSSIGNOL, P ;

DELALANDE, C ;

VINATTIERI, A ;

CARRARESI, L ;

COLOCCI, M ;

ROY, N ;

SERMAGE, B ;

PALMIER, JF ;

ETIENNE, B .

PHYSICAL REVIEW B, 1992, 45 (20) :11782-11794

[5] EXCITONS IN RESONANT COUPLING OF QUANTUM-WELLS [J].

FOX, AM ;

MILLER, DAB ;

LIVESCU, G ;

CUNNINGHAM, JE ;

HENRY, JE ;

JAN, WY .

PHYSICAL REVIEW B, 1990, 42 (03) :1841-1844

[6] EXCITON TRANSFER IN CDTE/(CD,MN)TE-DOUBLE QUANTUM-WELL STRUCTURES [J].

GOEDE, O ;

HEIMBRODT, W ;

HIEKE, K ;

GUMLICH, HE ;

PIER, T ;

LUNN, B ;

ASHENFORD, DE ;

JACKSON, S ;

NICHOLLS, JE .

SUPERLATTICES AND MICROSTRUCTURES, 1992, 12 (03) :363-366

[7] QUANTUM TUNNELING AND RELAXATION IN ASYMMETRIC COUPLED WELLS [J].

GURVITZ, SA ;

BARJOSEPH, I ;

DEVEAUD, B .

PHYSICAL REVIEW B, 1991, 43 (18) :14703-14706

[8] TUNNELING DYNAMICS IN CDTE/(CD,ZN)TE ASYMMETRIC DOUBLE-QUANTUM-WELL STRUCTURES [J].

HAACKE, S ;

PELEKANOS, NT ;

MARIETTE, H ;

ZIGONE, M ;

HEBERLE, AP ;

RUHLE, WW .

PHYSICAL REVIEW B, 1993, 47 (24) :16643-16646

[9] RESONANCES IN TUNNELING BETWEEN QUANTUM-WELLS [J].

HEBERLE, AP ;

RUHLE, WW ;

ALEXANDER, MGW ;

KOHLER, K .

SEMICONDUCTOR SCIENCE AND TECHNOLOGY, 1992, 7 (3B) :B421-B423

[10] ASYMMETRIC DUAL QUANTUM WELL LASER - WAVELENGTH SWITCHING CONTROLLED BY INJECTION CURRENT [J].

IKEDA, S ;

SHIMIZU, A ;

HARA, T .

APPLIED PHYSICS LETTERS, 1989, 55 (12) :1155-1157