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Issue 2, 2014
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Directing the film structure of organic semiconductors via post-deposition processing for transistor and solar cell applications

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Abstract

The morphology of thin films of molecular and polymeric semiconductors, which is structurally complex and heterogeneous across multiple length scales, is known to significantly affect the device performance. Yet, controlling the film structure is challenging, typically requiring chemical modification of the organic semiconductors, substrates, or the conditions under which the films are formed. Post-deposition processing offers an opportunity to decouple film formation from structural development, providing greater control over molecular ordering in organic semiconductor thin films. This review highlights recent advances in post-deposition processing, focusing specifically on methods that control three important aspects of the film structure – the in-plane and out-of-plane molecular orientations and molecular packing – and correlating these structural changes with device performance in organic thin-film transistors and solar cells.

Graphical abstract: Directing the film structure of organic semiconductors via post-deposition processing for transistor and solar cell applications

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Article information


Submitted
01 Aug 2013
Accepted
04 Nov 2013
First published
07 Nov 2013

Energy Environ. Sci., 2014,7, 592-608
Article type
Perspective

Directing the film structure of organic semiconductors via post-deposition processing for transistor and solar cell applications

A. M. Hiszpanski and Y. Loo, Energy Environ. Sci., 2014, 7, 592
DOI: 10.1039/C3EE42615G

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