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Sun D, Deng GH, Xu B, Xu E, Li X, Wu Y, Qian Y, Zhong Y, Nuckolls C, Harutyunyan AR, Dai HL, Chen G, Chen H, Rao Y. Anisotropic Singlet Fission in Single Crystalline Hexacene. iScience 2019; 19:1079-1089. [PMID: 31522118 PMCID: PMC6745488 DOI: 10.1016/j.isci.2019.08.053] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2019] [Revised: 07/01/2019] [Accepted: 08/26/2019] [Indexed: 11/25/2022] Open
Abstract
Singlet fission is known to improve solar energy utilization by circumventing the Shockley-Queisser limit. The two essential steps of singlet fission are the formation of a correlated triplet pair and its subsequent quantum decoherence. However, the mechanisms of the triplet pair formation and decoherence still remain elusive. Here we examined both essential steps in single crystalline hexacene and discovered remarkable anisotropy of the overall singlet fission rate along different crystal axes. Since the triplet pair formation emerges on the same timescale along both crystal axes, the quantum decoherence is likely responsible for the directional anisotropy. The distinct quantum decoherence rates are ascribed to the notable difference on their associated energy loss according to the Redfield quantum dissipation theory. Our hybrid experimental/theoretical framework will not only further our understanding of singlet fission, but also shed light on the systematic design of new materials for the third-generation solar cells.
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Affiliation(s)
- Dezheng Sun
- Department of Physics, Columbia University, New York, NY 10027, USA
| | - Gang-Hua Deng
- Department of Chemistry and Biochemistry, Utah State University, Logan, UT 84322, USA
| | - Bolei Xu
- Department of Chemistry, Temple University, Philadelphia, PA 19122, USA
| | - Enshi Xu
- Department of Chemistry, George Washington University, Washington, DC 20052, USA
| | - Xia Li
- Department of Chemistry and Biochemistry, Utah State University, Logan, UT 84322, USA
| | - Yajing Wu
- Department of Chemistry, Temple University, Philadelphia, PA 19122, USA
| | - Yuqin Qian
- Department of Chemistry and Biochemistry, Utah State University, Logan, UT 84322, USA
| | - Yu Zhong
- Department of Chemistry, Columbia University, New York, NY 10027, USA
| | - Colin Nuckolls
- Department of Chemistry, Columbia University, New York, NY 10027, USA
| | | | - Hai-Lung Dai
- Department of Chemistry, Temple University, Philadelphia, PA 19122, USA
| | - Gugang Chen
- Honda Research Institute USA, Inc., San Jose, CA 95134, USA.
| | - Hanning Chen
- Department of Chemistry, George Washington University, Washington, DC 20052, USA.
| | - Yi Rao
- Department of Chemistry and Biochemistry, Utah State University, Logan, UT 84322, USA.
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Deng GH, Wei Q, Han J, Qian Y, Luo J, Harutyunyan AR, Chen G, Bian H, Chen H, Rao Y. Vibronic fingerprint of singlet fission in hexacene. J Chem Phys 2019. [DOI: 10.1063/1.5110263] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Affiliation(s)
- Gang-Hua Deng
- Department of Chemistry and Biochemistry, Utah State University, Logan, Utah 84322, USA
| | - Qianshun Wei
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an 710119, China
| | - Jian Han
- Department of Chemistry and Biochemistry, Utah State University, Logan, Utah 84322, USA
- School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Yuqin Qian
- Department of Chemistry and Biochemistry, Utah State University, Logan, Utah 84322, USA
| | - Jun Luo
- School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | | | - Gugang Chen
- Honda Research Institute USA, Inc., San Jose, California 95134, USA
| | - Hongtao Bian
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an 710119, China
| | - Hanning Chen
- Department of Chemistry, George Washington University, Washington, DC 20052, USA
| | - Yi Rao
- Department of Chemistry and Biochemistry, Utah State University, Logan, Utah 84322, USA
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Pang W, Li J, Wang K, Fan X, De Luca LT, Bi F, Li H. Effects of Dihydroxylammonium 5,5′-Bistetrazole-1,1′-Diolate on the Properties of HTPB Based Composite Solid Propellant. PROPELLANTS EXPLOSIVES PYROTECHNICS 2018. [DOI: 10.1002/prep.201800046] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- WeiQiang Pang
- Xi'an Modern Chemistry Research Institute; Xi'an 710065 P.R.China
| | - JunQiang Li
- Xi'an Modern Chemistry Research Institute; Xi'an 710065 P.R.China
| | - Ke Wang
- Xi'an Modern Chemistry Research Institute; Xi'an 710065 P.R.China
| | - XueZhong Fan
- Xi'an Modern Chemistry Research Institute; Xi'an 710065 P.R.China
| | - Luigi T. De Luca
- Space Propulsion Laboratory (SPLab); Politecnico di Milano; Milan, I- 20156 Italy
| | - FuQiang Bi
- Xi'an Modern Chemistry Research Institute; Xi'an 710065 P.R.China
| | - Huan Li
- Xi'an Modern Chemistry Research Institute; Xi'an 710065 P.R.China
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Andrzejak M, Petelenz P. Vibronic relaxation energies of acene-related molecules upon excitation or ionization. Phys Chem Chem Phys 2018; 20:14061-14071. [DOI: 10.1039/c8cp01562g] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Effective-mode Franck–Condon parameters evaluation for excited state ionization from the corresponding excitation and ground-state ionization values leads to substantial errors.
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Affiliation(s)
- Marcin Andrzejak
- Department of Theoretical Chemistry
- Faculty of Chemistry
- Jagiellonian University
- 30-387 Krakow
- Poland
| | - Piotr Petelenz
- Department of Theoretical Chemistry
- Faculty of Chemistry
- Jagiellonian University
- 30-387 Krakow
- Poland
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Kumpulainen T, Lang B, Rosspeintner A, Vauthey E. Ultrafast Elementary Photochemical Processes of Organic Molecules in Liquid Solution. Chem Rev 2016; 117:10826-10939. [DOI: 10.1021/acs.chemrev.6b00491] [Citation(s) in RCA: 249] [Impact Index Per Article: 27.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Tatu Kumpulainen
- Department of Physical Chemistry,
Sciences II, University of Geneva, 30 Quai Ernest Ansermet, CH-1211 Geneva 4, Switzerland
| | - Bernhard Lang
- Department of Physical Chemistry,
Sciences II, University of Geneva, 30 Quai Ernest Ansermet, CH-1211 Geneva 4, Switzerland
| | - Arnulf Rosspeintner
- Department of Physical Chemistry,
Sciences II, University of Geneva, 30 Quai Ernest Ansermet, CH-1211 Geneva 4, Switzerland
| | - Eric Vauthey
- Department of Physical Chemistry,
Sciences II, University of Geneva, 30 Quai Ernest Ansermet, CH-1211 Geneva 4, Switzerland
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Chermahini AN, Kermannezhad K, Rezaei M. Theoretical Studies on the Adsorption of 5-Aminotetrazole on Single-walled Carbon Nanotubes. J CHIN CHEM SOC-TAIP 2016. [DOI: 10.1002/jccs.201600130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Zhang Y, Sun Q, Xu K, Song J, Zhao F. Review on the Reactivity of 1,1-Diamino-2,2-dinitroethylene (FOX-7). PROPELLANTS EXPLOSIVES PYROTECHNICS 2015. [DOI: 10.1002/prep.201500065] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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Faber K, Badaczewski F, Ruland W, Smarsly BM. Investigation of the Microstructure of Disordered, Non-graphitic Carbons by an Advanced Analysis Method for Wide-Angle X-ray Scattering. Z Anorg Allg Chem 2014. [DOI: 10.1002/zaac.201400210] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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