Ultrafast Terahertz Photoconductivity of Bulk Heterojunction Materials Reveals High Carrier Mobility up to Nanosecond Time Scale.
(2012) In Journal of the American Chemical Society 134(29). p.11836-11839- Abstract
- The few-picosecond (ps) decay of terahertz (THz) photoconductivity typically observed for conjugated polymer:fullerene blends (at excitation fluencies ∼10(15) photons/cm(2) per pulse) is shown to be a result of charge pair annihilation for two polymer:PCBM blends. At a factor of 100 lower excitation density, the THz decay is in the hundreds of ps time scale, implying that very high carrier mobility (∼0.1 cm(2) V(-1) s(-1)) prevails for long time after charge formation, of importance for free charge formation in organic solar cells.
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/2967681
- author
- Ponseca, Carlito LU ; Yartsev, Arkady LU ; Wang, Ergang ; Andersson, Mats R ; Vithanage, Dimali LU and Sundström, Villy LU
- organization
- publishing date
- 2012
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Journal of the American Chemical Society
- volume
- 134
- issue
- 29
- pages
- 4 pages
- publisher
- The American Chemical Society (ACS)
- external identifiers
-
- wos:000306724500003
- pmid:22747242
- scopus:84864213087
- pmid:22747242
- ISSN
- 1520-5126
- DOI
- 10.1021/ja301757y
- language
- English
- LU publication?
- yes
- additional info
- The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Chemical Physics (S) (011001060)
- id
- 51c5db2c-f4c0-4696-8e57-3728c291742e (old id 2967681)
- date added to LUP
- 2016-04-01 13:49:10
- date last changed
- 2023-09-17 05:44:08
@article{51c5db2c-f4c0-4696-8e57-3728c291742e, abstract = {{The few-picosecond (ps) decay of terahertz (THz) photoconductivity typically observed for conjugated polymer:fullerene blends (at excitation fluencies ∼10(15) photons/cm(2) per pulse) is shown to be a result of charge pair annihilation for two polymer:PCBM blends. At a factor of 100 lower excitation density, the THz decay is in the hundreds of ps time scale, implying that very high carrier mobility (∼0.1 cm(2) V(-1) s(-1)) prevails for long time after charge formation, of importance for free charge formation in organic solar cells.}}, author = {{Ponseca, Carlito and Yartsev, Arkady and Wang, Ergang and Andersson, Mats R and Vithanage, Dimali and Sundström, Villy}}, issn = {{1520-5126}}, language = {{eng}}, number = {{29}}, pages = {{11836--11839}}, publisher = {{The American Chemical Society (ACS)}}, series = {{Journal of the American Chemical Society}}, title = {{Ultrafast Terahertz Photoconductivity of Bulk Heterojunction Materials Reveals High Carrier Mobility up to Nanosecond Time Scale.}}, url = {{http://dx.doi.org/10.1021/ja301757y}}, doi = {{10.1021/ja301757y}}, volume = {{134}}, year = {{2012}}, }