A Conformationally Driven Mechanism in n-Type Doping of Naphthalene Diimide-Bithiophene Copolymer by 1H-Benzimidazoles.

ABSTRACT: N-doped polymer semiconductors are of great interest in the field of organic thermoelectrics, as high-conductive materials are still highly desired. In this framework, this paper aims to clarify whether the n-doping of naphthalene diimide-bithiophene copolymer, P(NDI2OD-T2), by 1H-benzimidazoles is a thermally activated process. The study interestingly demonstrates that a relevant change in conductivity, with an increase of more than three orders of magnitude with respect to pristine P(NDI2OD-T2), occurs before the annealing process takes place, thus revealing that benzimidazole-derived dopants are already active at room temperature. Moreover, despite the annealing time and temperature affecting the electrical conductivity of the system, their contribution is less relevant, with the increa

SUBMITTER: Cimo S 

PROVIDER: S-EPMC12005812 | biostudies-literature | 2025 Apr

REPOSITORIES: biostudies-literature