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We present a method to fabricate binary organic donor and acceptor blends exhibiting a controlled lateral gradient in morphology. Upon combining photometry, ellipsometry and Xray maps together with photoinduced absorption measurements, we show how the gradual exposure to solvent vapor results in a varying degree of polymer crystallinity for the polythiophene/soluble fullerene system along one direction. These morphologically graded samples are characterized by a spectral photoresponse that depends on the specific location in the area of the device where the light beam impinges, a property that stands as proof-of-concept for position sensitive detection. Moreover, we demonstrate that the development of graded morphologies is an effective one-step method which allows for fast performance optimization of organic solar cells. Finally, the appropriateness of eight different solvents for morphology control via vapor annealing is evaluated in a time-effective way using the advanced method, which helps to identify boiling point and solubility as the key processing parameters.

Pertenece a



Campoy Quiles, Mariano -  Randon, V. -  Mróz, M. M. -  Jarzaguet, M. -  Garriga Bacardi, Miquel - 

Id.: 70741591

Idioma: eng  - 

Versión: 1.0

Estado: Final

Palabras claveOrganic photovoltaics - 

Tipo de recurso: Artículo  - 

Tipo de Interactividad: Expositivo

Nivel de Interactividad: muy bajo

Audiencia: Estudiante  -  Profesor  -  Autor  - 

Estructura: Atomic

Coste: no

Copyright: sí

: openAccess

Requerimientos técnicos:  Browser: Any - 

Relación: [References] Publisher's version
[References] http://dx.doi.org/10.2478/oph-2013-0002
[References] Sí

Fecha de contribución: 13-dic-2017


* Organic Photonics and Photovoltaics 1:11-23 (2013)
* 10.2478/oph-2013-0002
* 2299-3177

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