Abstract
Inverted organic photovoltaic devices based on a blend of poly(3-hexylthiophene) and a fullerene have been developed by inserting a solution-processed ZnO interlayer between the indium tin oxide (ITO) electrode and the active layer using Ag as a hole-collecting back contact. Efficient electron extraction through the ZnO and hole extraction through the Ag, with minimal loss in open-circuit potential, is observed with a certified power conversion efficiency of 2.58%. The inverted architecture removes the need for the use of poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) as an ITO modifier and for the use of a low-work-function metal as the back contact in the device.
Original language | American English |
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Article number | 143517 |
Number of pages | 3 |
Journal | Applied Physics Letters |
Volume | 89 |
Issue number | 14 |
DOIs | |
State | Published - 2006 |
NREL Publication Number
- NREL/JA-520-39645