Impact of Side Chains of Conjugated Polymers on Electronic Structure: A Case Study.

ABSTRACT: Processing from solution is a crucial aspect of organic semiconductors, as it is at the heart of the promise of easy and inexpensive manufacturing of devices. Introducing alkyl side chains is an approach often used to increase solubility and enhance miscibility in blends. The influence of these side chains on the electronic structure, although highly important for a detailed understanding of the structure-function relationship of these materials, is still barely understood. Here, we use time-resolved electron paramagnetic resonance spectroscopy with its molecular resolution to investigate the role of alkyl side chains on the polymer PCDTBT and a series of its building blocks with increasing length. Comparing our results to the non-hexylated compounds allows us to distinguish four different

SUBMITTER: Matt C 

PROVIDER: S-EPMC6572471 | biostudies-literature | 2019 May

REPOSITORIES: biostudies-literature