Title: Hole transit in P3HT:PCBM solar cells with embedded gold nanoparticles
Authors: Cheng, Cheng-En
Pei, Zingway
Hsu, Chia-Chen
Chang, Chen-Shiung
Chien, Forest Shih-Sen
光電工程學系
Department of Photonics
Keywords: Polymer solar cells;Gold nanoparticles;Hole transit;Impedance spectroscopy
Issue Date: 1-Feb-2014
Abstract: The electrical properties of polymer solar cells (PSCs) with gold nanoparticles (AuNPs) embedded in the hole transport layers (Hits) were investigated. The PSCs with AuNP-embedded HTLs exhibited 8%, 9.5%, and 22% enhancement in short-circuit current density, open-circuit voltage, and power conversion efficiency, respectively. The low contact resistance at the active layer/Hit interface resulted in the high collection efficiency and low electron-hole recombination. The downshift of the Fermi energy in AuNP-embedded HTLs lowered the energy barrier and thinned the depletion layer at the active layer/HTL interface, accounting for the enhanced collection efficiency. (C) 2013 Elsevier B.V. All rights reserved.
URI: http://dx.doi.org/10.1016/j.solmat.2013.10.017
http://hdl.handle.net/11536/23820
ISSN: 0927-0248
DOI: 10.1016/j.solmat.2013.10.017
Journal: SOLAR ENERGY MATERIALS AND SOLAR CELLS
Volume: 121
Issue: 
Begin Page: 80
End Page: 84
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