PMID- 29039960
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20180205
LR  - 20180205
IS  - 1948-7185 (Electronic)
IS  - 1948-7185 (Linking)
VI  - 8
IP  - 21
DP  - 2017 Nov 2
TI  - Exciton-Coupled Electron Transfer Process Controlled by Non-Markovian 
      Environments.
PG  - 5390-5394
LID - 10.1021/acs.jpclett.7b01535 [doi]
AB  - We theoretically investigate an exciton-coupled electron transfer (XCET) process 
      that is conversion of an exciton into a charge transfer state. This conversion 
      happens in an exciton transfer (XT) process, and the electron moves away in an 
      electron transfer (ET) process in multiple environments (baths). This XCET 
      process plays an essential role in the harvesting of solar energy in biological 
      and photovoltaic materials. We develop a practical theoretical model to study the 
      efficiency of the XCET process that occurs either in consecutive or concerted 
      processes under the influence of non-Markovian baths. The role of quantum 
      coherence in the XT-ET system and the baths is investigated using reduced 
      hierarchal equations of motion (HEOM). This model includes independent baths for 
      each XT and ET state, in addition to a XCET bath for the conversion process. We 
      found that, while quantum system-bath coherence is important in the XT and ET 
      processes, coherence between the XT and ET processes must be suppressed in order 
      to realize that an efficient irreversible XCET process through the weak 
      off-diagonal interaction between the XT and ET bridge sites arises from an XCET 
      bath.
FAU - Sakamoto, Souichi
AU  - Sakamoto S
AD  - Department of Chemistry, Graduate School of Science, Kyoto University , Sakyoku, 
      Kyoto 606-8502, Japan.
FAU - Tanimura, Yoshitaka
AU  - Tanimura Y
AUID- ORCID: 0000-0002-7913-054X
AD  - Department of Chemistry, Graduate School of Science, Kyoto University , Sakyoku, 
      Kyoto 606-8502, Japan.
LA  - eng
PT  - Journal Article
DEP - 20171023
PL  - United States
TA  - J Phys Chem Lett
JT  - The journal of physical chemistry letters
JID - 101526034
EDAT- 2017/10/19 06:00
MHDA- 2017/10/19 06:01
CRDT- 2017/10/18 06:00
PHST- 2017/10/19 06:00 [pubmed]
PHST- 2017/10/19 06:01 [medline]
PHST- 2017/10/18 06:00 [entrez]
AID - 10.1021/acs.jpclett.7b01535 [doi]
PST - ppublish
SO  - J Phys Chem Lett. 2017 Nov 2;8(21):5390-5394. doi: 10.1021/acs.jpclett.7b01535. 
      Epub 2017 Oct 23.