Measurement of the Charge Carrier Mobility Distribution in Bulk Heterojunction Solar Cells

Jason Seifter; Yanming Sun; Hyosung Choi; Byoung Hoon Lee; Thanh Luan Nguyen; Han Young Woo; Alan J Heeger

doi:10.1002/adma.201500416

Measurement of the Charge Carrier Mobility Distribution in Bulk Heterojunction Solar Cells

Adv Mater. 2015 Sep 9;27(34):4989-96. doi: 10.1002/adma.201500416. Epub 2015 Jul 22.

Authors

Jason Seifter¹, Yanming Sun², Hyosung Choi^{3

4

5}, Byoung Hoon Lee³, Thanh Luan Nguyen⁶, Han Young Woo⁶, Alan J Heeger^{1

3

7}

Affiliations

¹ Physics Department, University of California Santa Barbara, Santa Barbara, CA, 93106, USA.
² Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, Beijing Key Laboratory of Bio-Inspired Energy Materials and Devices, School of Chemistry and Environment, Beihang University, Beijing, 100191, China.
³ Center for Polymers and Organic Solids, University of California Santa Barbara, Santa Barbara, CA, 93106, USA.
⁴ School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 689-798, South Korea.
⁵ Department of Chemistry, College of Natural Sciences, Hanyang University, Seoul, 133-791, South Korea.
⁶ Department of Nanofusion Engineering, Department of Cogno-Mechatronics Engineering, Pusan National University, Miryang, 627-706, South Korea.
⁷ Materials Department, University of California Santa Barbara, Santa Barbara, CA, 93106, USA.

PMID: 26199190
DOI: 10.1002/adma.201500416

Abstract

Charge carrier transport through organic solar cells is fundamentally dispersive due to the disordered structure and complex film morphology within the photoactive layer. A novel application of transient photocurrent and short-circuit variable time-delayed collection field measurements is used to reconstruct the complete charge carrier mobility distribution for the photogenerated carriers in optimized organic solar cells.

Keywords: bulk heterojunctions; charge transport; mobility; organic solar cells; transient photocurrent.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Electric Conductivity
Electric Power Supplies*
Electron Transport
Organic Chemicals / chemistry
Solar Energy*

Substances

Organic Chemicals