From Monolayer to Bulk: Thin-Film-Specific Polymorphic Transitions of a Molecular Semiconductor.

ABSTRACT: Organic compounds have the potential to form distinct crystal structures on a substrate surface. These are typically referred to as thin-film and monolayer phases. The properties of these phases are often key for developing high-performance devices. Nevertheless, many thin-film-specific phases remain unidentified, and the known bulk phase is instead used as a structural model to discuss structure-property relationships also in thin films. For example, the polymorphism of dinaphtho-[2,3-b:2',3'-f]-thieno-[3,2-b]-thiophene (DNTT) has long been overlooked, even though this compound is widely used as a benchmark material for organic thin-film transistors. For a comprehensive understanding of polymorphic transitions in organic semiconductors, the present study investigates

SUBMITTER: Shioya N 

PROVIDER: S-EPMC12895392 | biostudies-literature | 2026 Feb

REPOSITORIES: biostudies-literature