STABLE BIEXCITONS IN CONJUGATED POLYMERS

被引:50
作者
GUO, F [1 ]
CHANDROSS, M [1 ]
MAZUMDAR, S [1 ]
机构
[1] UNIV ARIZONA,CTR OPT SCI,TUCSON,AZ 85721
关键词
D O I
10.1103/PhysRevLett.74.2086
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Theoretical evidence for stable biexcitons are found within the Coulomb-correlated model for -conjugated polymers, for realistic Coulomb interaction parameters. High energy picosecond photoinduced absorption, not anticipated within one-electron theories of -conjugated polymers, is explained as a transition from the optical exciton to the biexciton. © 1995 The American Physical Society.
引用
收藏
页码:2086 / 2089
页数:4
相关论文
共 21 条
[1]  
BAERISWYL D, 1992, CONJUGATED CONDUCTIN
[2]   EXCITONIC N-STRING IN LINEAR-CHAINS - ELECTRONIC-STRUCTURE AND OPTICAL-PROPERTIES [J].
EZAKI, H ;
TOKIHIRO, T ;
HANAMURA, E .
PHYSICAL REVIEW B, 1994, 50 (15) :10506-10515
[3]   ROLE OF THE CONDUCTION-BAND IN ELECTROABSORPTION, 2-PHOTON ABSORPTION, AND 3RD-HARMONIC GENERATION IN POLYDIACETYLENES [J].
GUO, D ;
MAZUMDAR, S ;
DIXIT, SN ;
KAJZAR, F ;
JARKA, F ;
KAWABE, Y ;
PEYGHAMBARIAN, N .
PHYSICAL REVIEW B, 1993, 48 (03) :1433-1459
[4]   SOLITONS IN CONDUCTING POLYMERS [J].
HEEGER, AJ ;
KIVELSON, S ;
SCHRIEFFER, JR ;
SU, WP .
REVIEWS OF MODERN PHYSICS, 1988, 60 (03) :781-850
[5]   ASSIGNMENT OF THE PICOSECOND PHOTOINDUCED ABSORPTION IN PHENYLENE VINYLENE POLYMERS [J].
HSU, JWP ;
YAN, M ;
JEDJU, TM ;
ROTHBERG, LJ ;
HSIEH, BR .
PHYSICAL REVIEW B, 1994, 49 (01) :712-715
[6]   RELAXATION DYNAMICS OF PHOTOEXCITATIONS IN POLYDIACETYLENES AND POLYTHIOPHENE [J].
KOBAYASHI, T ;
YOSHIZAWA, M ;
STAMM, U ;
TAIJI, M ;
HASEGAWA, M .
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS, 1990, 7 (08) :1558-1578
[7]   EXCITON STRINGS IN AN ORGANIC CHARGE-TRANSFER CRYSTAL [J].
KUWATA-GONOKAMI, M ;
PEYGHAMBARIAN, N ;
MEISSNER, K ;
FLUEGEL, B ;
SATO, Y ;
EMA, K ;
SHIMANO, R ;
MAZUMDAR, S ;
GUO, F ;
TOKIHIRO, T ;
EZAKI, H ;
HANAMURA, E .
NATURE, 1994, 367 (6458) :47-48
[8]   OPTICAL PROBES OF EXCITED-STATES IN POLY(P-PHENYLENEVINYLENE) [J].
LENG, JM ;
JEGLINSKI, S ;
WEI, X ;
BENNER, RE ;
VARDENY, ZV ;
GUO, F ;
MAZUMDAR, S .
PHYSICAL REVIEW LETTERS, 1994, 72 (01) :156-159
[9]  
LONG JM, 1994, MOL CRYST LIQ CRYST, V256, P697
[10]   OBSERVATION OF 3 RESONANCES IN THE 3RD-HARMONIC GENERATION SPECTRUM OF CONJUGATED POLYMERS - EVIDENCE FOR THE 4-LEVEL ESSENTIAL STATES MODEL [J].
MAZUMDAR, S ;
GUO, F .
JOURNAL OF CHEMICAL PHYSICS, 1994, 100 (02) :1665-1672