Back to Search
Start Over
Irradiation-induced molecular dipole reorientation in inverted polymer solar cell using small molecular electron collection layer.
- Source :
-
Applied Physics Letters . 11/14/2011, Vol. 99 Issue 20, p203301. 3p. 4 Graphs. - Publication Year :
- 2011
-
Abstract
- Inverted polymer solar cell is developed using small molecular tris(8-hydroxyquinolinato) aluminum (Alq3) as an electron collection layer between the active layer and indium-tin-oxide bottom cathode. Upon post-processing light irradiation by simulated solar illumination, the open-circuit voltage of the inverted device increases from 0.52 V to 0.60 V, resulting in the enhancement of the power conversion efficiency from 2.54% to 3.33% with negligible change in the short-circuit current. The performance improvement is attributed to the removal of surface potential due to irradiation-induced molecular dipole reorientation in the Alq3 layer, which reduces the charge transport barrier and improves the charge collection efficiency. [ABSTRACT FROM AUTHOR]
- Subjects :
- *MOLECULAR electronics
*DIPOLE moments
*HYDROXYQUINOLINE
*CATHODES
*IRRADIATION
Subjects
Details
- Language :
- English
- ISSN :
- 00036951
- Volume :
- 99
- Issue :
- 20
- Database :
- Academic Search Index
- Journal :
- Applied Physics Letters
- Publication Type :
- Academic Journal
- Accession number :
- 67327915
- Full Text :
- https://doi.org/10.1063/1.3663548