Energy transfer processes in new conjugated polymer/6,6-phenyl-C 61-butyric acid methyl ester systems for photovoltaic applications

Zhiling Zhang; Yu Xie; Qiquan Qiao; Michael Ropp; David Galipeau; Xingzhong Yan

doi:10.1109/PVSC.2009.5411662

Energy transfer processes in new conjugated polymer/6,6-phenyl-C ₆₁-butyric acid methyl ester systems for photovoltaic applications

Zhiling Zhang, Yu Xie, Qiquan Qiao, Michael Ropp, David Galipeau, Xingzhong Yan

Research output: Chapter in Book/Entry/Poem › Conference contribution

Abstract

The photoinduced energy transfer dynamics in poly[9,9-di-(2-ethylhexyl)- fluorenyl-2,7-diyl]/6,6-phenyl-C₆₁-butyric acid methyl ester (PDFA/PCBM) and poly(9,9-dioctylfluorenyl-2,7-diyl) (PF)/PCBM systems have been investigated. Ultrafast intra-chain energy transfer on the time-scale of a few hundred femtoseconds was found. A decay process that occurs in the picosecond time-scale may indicate an energy transfer process from the polymer to PCBM. This may be associated with a torsional relaxation (in the case of PF) or vibrational relaxation (in the case of PDFA). Bulk heterojunction solar cells have been fabricated using the polymer/PCBM systems. The cell made from PDFA/PCBM blend demonstrated a 30% higher conversion efficiency than the cell made from PF/PCBM blend, consistent with their absorption profiles.

Original language	English (US)
Title of host publication	2009 34th IEEE Photovoltaic Specialists Conference, PVSC 2009
Pages	361-365
Number of pages	5
DOIs	https://doi.org/10.1109/PVSC.2009.5411662
State	Published - 2009
Externally published	Yes
Event	2009 34th IEEE Photovoltaic Specialists Conference, PVSC 2009 - Philadelphia, PA, United States Duration: Jun 7 2009 → Jun 12 2009

Publication series

Name	Conference Record of the IEEE Photovoltaic Specialists Conference
ISSN (Print)	0160-8371

Conference

Conference	2009 34th IEEE Photovoltaic Specialists Conference, PVSC 2009
Country/Territory	United States
City	Philadelphia, PA
Period	6/7/09 → 6/12/09

ASJC Scopus subject areas

Control and Systems Engineering
Industrial and Manufacturing Engineering
Electrical and Electronic Engineering

Access to Document

10.1109/PVSC.2009.5411662

Cite this

Zhang, Z., Xie, Y., Qiao, Q., Ropp, M., Galipeau, D., & Yan, X. (2009). Energy transfer processes in new conjugated polymer/6,6-phenyl-C ₆₁-butyric acid methyl ester systems for photovoltaic applications. In 2009 34th IEEE Photovoltaic Specialists Conference, PVSC 2009 (pp. 361-365). Article 5411662 (Conference Record of the IEEE Photovoltaic Specialists Conference). https://doi.org/10.1109/PVSC.2009.5411662

Energy transfer processes in new conjugated polymer/6,6-phenyl-C ₆₁-butyric acid methyl ester systems for photovoltaic applications. / Zhang, Zhiling; Xie, Yu; Qiao, Qiquan et al.
2009 34th IEEE Photovoltaic Specialists Conference, PVSC 2009. 2009. p. 361-365 5411662 (Conference Record of the IEEE Photovoltaic Specialists Conference).

Research output: Chapter in Book/Entry/Poem › Conference contribution

Zhang, Z, Xie, Y, Qiao, Q, Ropp, M, Galipeau, D & Yan, X 2009, Energy transfer processes in new conjugated polymer/6,6-phenyl-C ₆₁-butyric acid methyl ester systems for photovoltaic applications. in 2009 34th IEEE Photovoltaic Specialists Conference, PVSC 2009., 5411662, Conference Record of the IEEE Photovoltaic Specialists Conference, pp. 361-365, 2009 34th IEEE Photovoltaic Specialists Conference, PVSC 2009, Philadelphia, PA, United States, 6/7/09. https://doi.org/10.1109/PVSC.2009.5411662

Zhang Z, Xie Y, Qiao Q, Ropp M, Galipeau D, Yan X. Energy transfer processes in new conjugated polymer/6,6-phenyl-C ₆₁-butyric acid methyl ester systems for photovoltaic applications. In 2009 34th IEEE Photovoltaic Specialists Conference, PVSC 2009. 2009. p. 361-365. 5411662. (Conference Record of the IEEE Photovoltaic Specialists Conference). doi: 10.1109/PVSC.2009.5411662

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abstract = "The photoinduced energy transfer dynamics in poly[9,9-di-(2-ethylhexyl)- fluorenyl-2,7-diyl]/6,6-phenyl-C61-butyric acid methyl ester (PDFA/PCBM) and poly(9,9-dioctylfluorenyl-2,7-diyl) (PF)/PCBM systems have been investigated. Ultrafast intra-chain energy transfer on the time-scale of a few hundred femtoseconds was found. A decay process that occurs in the picosecond time-scale may indicate an energy transfer process from the polymer to PCBM. This may be associated with a torsional relaxation (in the case of PF) or vibrational relaxation (in the case of PDFA). Bulk heterojunction solar cells have been fabricated using the polymer/PCBM systems. The cell made from PDFA/PCBM blend demonstrated a 30% higher conversion efficiency than the cell made from PF/PCBM blend, consistent with their absorption profiles.",

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