Exciton delocalization probed by excitation annihilation in the light-harvesting antenna LH2

被引：113
|
作者：
Trinkunas, G
Herek, JL
Polívka, T
Sundström, V
Pullerits, T
机构：
[1] Univ Lund, Dept Chem Phys, S-22100 Lund, Sweden
[2] Inst Phys, LT-2600 Vilnius, Lithuania
来源：
PHYSICAL REVIEW LETTERS | 2001年 / 86卷 / 18期
关键词：
D O I：
10.1103/PhysRevLett.86.4167
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Singlet-singlet annihilation is used to study exciton delocalization in the light harvesting antenna complex LH2 (B800-B850) from the photosynthetic purple bacterium Rhodobacter sphaeroides. The characteristic femtosecond decay constants of the high intensity isotropic and the low intensity anisotropy kinetics of the B850 ring are related to the hopping time tau (h) and the coherence length N-coh Of the exciton. Our analysis yields Ncoh = 2.8 +/- 0.4 and tau (h) = 0.27 +/- 0.05 ps. This approach can be seen as an extension to the concept of the spectroscopic ruler.
引用
收藏
页码：4167 / 4170
页数：4
相关论文
共 50 条
  • [21] Reconstitution of Chlorophyll d into the Bacterial Photosynthetic Light-harvesting Protein LH2
    Saga, Yoshitaka
    Yamashita, Madoka
    Imanishi, Michie
    Kimura, Yukihiro
    CHEMISTRY LETTERS, 2018, 47 (08) : 1071 - 1074
  • [22] Frenkel exciton Hamiltonian for LH2 photosynthetic antenna
    Tretiak, Sergei
    Middleton, Cris
    Chernyak, Vladimir
    Mukamel, Shaul
    2000, ACS, Washington, DC, United States (41):
  • [23] Exciton lineshapes of LH2 photosynthetic antenna proteins
    Freiberg, A
    Ruus, R
    Timpmann, K
    SPECTROSCOPY OF BIOLOGICAL MOLECULES: NEW DIRECTIONS, 1999, : 115 - 118
  • [24] Exciton delocalization and initial dephasing dynamics of purple bacterial LH2
    Book, LD
    Ostafin, AE
    Ponomarenko, N
    Norris, JR
    Scherer, NF
    JOURNAL OF PHYSICAL CHEMISTRY B, 2000, 104 (34): : 8295 - 8307
  • [25] Structural Stability of Light-harvesting Protein LH2 Adsorbed on Mesoporous Silica Supports
    Yuuta Shibuya
    Tetsuji Itoh
    Shun-ichi Matsuura
    Akira Yamaguchi
    Analytical Sciences, 2015, 31 : 1069 - 1074
  • [26] Static and Dynamic Protein Impact on Electronic Properties of Light-Harvesting Complex LH2
    Zerlauskiene, O.
    Trinkunas, G.
    Gall, A.
    Robert, B.
    Urboniene, V.
    Valkunas, L.
    JOURNAL OF PHYSICAL CHEMISTRY B, 2008, 112 (49): : 15883 - 15892
  • [27] Assembly of the LH2 Light-Harvesting Complexes of Thiorhodospira sibirica with Different Carotenoid Levels
    M. A. Bolshakov
    A. A. Ashikhmin
    Z. K. Makhneva
    A. A. Moskalenko
    Microbiology, 2020, 89 : 278 - 286
  • [28] Structural Stability of Light-harvesting Protein LH2 Adsorbed on Mesoporous Silica Supports
    Shibuya, Yuuta
    Itoh, Tetsuji
    Matsuura, Shun-ichi
    Yamaguchi, Akira
    ANALYTICAL SCIENCES, 2015, 31 (10) : 1069 - 1074
  • [29] Assembly of the LH2 Light-Harvesting Complexes of Thiorhodospira sibirica with Different Carotenoid Levels
    Bolshakov, M. A.
    Ashikhmin, A. A.
    Makhneva, Z. K.
    Moskalenko, A. A.
    MICROBIOLOGY, 2020, 89 (03) : 278 - 286
  • [30] Structural stability of light-harvesting protein LH2 adsorbed on mesoporous silica supports
    College of Science, Ibaraki University, 2-1-1 Bunkyo, Mito, Ibaraki
    310-8512, Japan
    不详
    983-8551, Japan
    Anal. Sci., 10 (1069-1074):
12345