Surface-Engineered Graphene for Controlled Growth of Organic Semiconducting Films
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초록
내용
Graphene's π-conjugated network facilitates quasi-epitaxy of organic molecules through π-π interactions, enabling control over the growth morphology of organic semiconducting thin films, which is crucial for optimizing their optoelectronic properties. Utilizing graphene as a growth substrate allows for a clean atomic interface and controlled charge injection, unlike conventional substrates. Surface treatments of graphene can modify its properties, enhancing the crystallinity and charge mobility of films like pentacene, a model organic molecule for OTFTs. However, while controlling pentacene's orientation on graphene is essential, challenges in understanding the graphene-pentacene interface hinder precise growth control. This study explores surface modifications to graphene to manipulate pentacene's molecular arrangement, aiming to improve device performance in organic electronics.