Role of the Dark 2Ag State in Donor–Acceptor Copolymers as a Pathway for Singlet Fission: A DMRG Study

2017 ◽  
Vol 8 (10) ◽  
pp. 2175-2181 ◽  
Author(s):  
Jiajun Ren ◽  
Qian Peng ◽  
Xu Zhang ◽  
Yuanping Yi ◽  
Zhigang Shuai
Keyword(s):  
Singlet Fission ◽  
Donor Acceptor

Singlet Fission in Concentrated TIPS-Pentacene Solutions: The Role of Excimers and Aggregates

2021 ◽  
Author(s):  
Miroslav Dvořák ◽  
Shyamal K. K. Prasad ◽  
Cameron B. Dover ◽  
Chelsea R. Forest ◽  
Akasha Kaleem ◽  
...  
Keyword(s):  
Singlet Fission

The role of conformational heterogeneity in the excited state dynamics of linked diketopyrrolopyrrole dimers

2021 ◽  
Author(s):  
Siobhan Bradley ◽  
Ming Chi ◽  
Jonathan White ◽  
Christopher R. Hall ◽  
Lars Goerigk ◽  
...  
Keyword(s):  
Excited State ◽  
Conformational Heterogeneity ◽  
Singlet Fission ◽  
Excited State Dynamics

Diketopyrrolopyrrole (DPP) derivatives have been proposed for both singlet fission and energy upconversion as they meet the energetic requirements and exhibit superior photostability compared to many other chromophores. In this...

The role of potential fluctuations in continuous-wave donor–acceptor pair luminescence of heavily doped materials

1999 ◽  
Vol 75 (9) ◽  
pp. 1243-1245 ◽  
Author(s):  
I. Kuskovsky ◽  
D. Li ◽  
G. F. Neumark ◽  
V. N. Bondarev ◽  
P. V. Pikhitsa
Keyword(s):  
Continuous Wave ◽  
Acceptor Pair ◽  
Potential Fluctuations ◽  
Donor Acceptor ◽  
Heavily Doped ◽  
Donor Acceptor Pair ◽  
Doped Materials

Synergetic effects in multiphase catalysts: the role of FeSbO4 as donor—acceptor of spillover oxygen

1996 ◽  
Vol 32 (1-4) ◽  
pp. 311-319 ◽  
Author(s):  
S.R.G. Carrazán ◽  
L. Cadus ◽  
Ph. Dieu ◽  
P. Ruiz ◽  
B. Delmon
Keyword(s):  
Synergetic Effects ◽  
Donor Acceptor ◽  
Multiphase Catalysts

scholarly journals Molecular design strategy for practical singlet fission materials: The charm of donor/acceptor decorated quinoidal structure

CCS Chemistry ◽  
2021 ◽  
pp. 1-17
Author(s):  
Long Wang ◽  
Xiaomei Shi ◽  
Shishi Feng ◽  
WanZhen Liang ◽  
Hongbing Fu ◽  
...  
Keyword(s):  
Molecular Design ◽  
Design Strategy ◽  
Singlet Fission ◽  
Donor Acceptor

scholarly journals Two-electron transfer stabilized by excited-state aromatization

2019 ◽  
Vol 10 (1) ◽  
Author(s):  
Jinseok Kim ◽  
Juwon Oh ◽  
Seongchul Park ◽  
Jose L. Zafra ◽  
Justin R. DeFrancisco ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Excited State ◽  
Excited States ◽  
Transfer Process ◽  
Comprehensive Understanding ◽  
Electron Transfer Process ◽  
Photoactive Materials ◽  
Donor Acceptor ◽  
Scientific Significance

Abstract The scientific significance of excited-state aromaticity concerns with the elucidation of processes and properties in the excited states. Here, we focus on TMTQ, an oligomer composed of a central 1,6-methano[10]annulene and 5-dicyanomethyl-thiophene peripheries (acceptor-donor-acceptor system), and investigate a two-electron transfer process dominantly stabilized by an aromatization in the low-energy lying excited state. Our spectroscopic measurements quantitatively observe the shift of two π-electrons between donor and acceptors. It is revealed that this two-electron transfer process accompanies the excited-state aromatization, producing a Baird aromatic 8π core annulene in TMTQ. Biradical character on each terminal dicyanomethylene group of TMTQ allows a pseudo triplet-like configuration on the 8π core annulene with multiexcitonic nature, which stabilizes the energetically unfavorable two-charge separated state by the formation of Baird aromatic core annulene. This finding provides a comprehensive understanding of the role of excited-state aromaticity and insight to designing functional photoactive materials.

Computational study on GaCl3-mediated reactions of donor–acceptor cyclopropanes with aromatic aldehydes: mechanism and role of GaCl3 and aldehydes

2018 ◽  
Vol 5 (10) ◽  
pp. 1702-1712 ◽  
Author(s):  
Peng-Cheng Tu ◽  
Lin Zhou ◽  
Alexander M. Kirillov ◽  
Ran Fang ◽  
Lizi Yang
Keyword(s):  
Computational Study ◽  
Aromatic Aldehydes ◽  
Donor Acceptor

The mechanism and role of GaCl3 and aldehydes for the GaCl3-mediated reaction of donor–acceptor (D–A) cyclopropanes are clarified through our calculations.

The Role of Electron–Hole Separation in Thermally Activated Delayed Fluorescence in Donor–Acceptor Blends

2015 ◽  
Vol 119 (45) ◽  
pp. 25591-25597 ◽  
Author(s):  
Eric Hontz ◽  
Wendi Chang ◽  
Daniel N. Congreve ◽  
Vladimir Bulović ◽  
Marc A. Baldo ◽  
...  
Keyword(s):  
Delayed Fluorescence ◽  
Electron Hole ◽  
Thermally Activated Delayed Fluorescence ◽  
Thermally Activated ◽  
Donor Acceptor
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