Composition and sequence-controlled conductance of crystalline unimolecular monolayers.

ABSTRACT: Understanding how the charge travels through sequence-controlled molecules has been a formidable challenge because of simultaneous requirements in well-controlled synthesis and well-manipulated orientation. Here, we report electrically driven simultaneous synthesis and crystallization as a general strategy to study the conductance of composition and sequence-controlled unioligomer and unipolymer monolayers. The structural disorder of molecules and conductance variations on random positions can be extremely minimized, by uniform synthesis of monolayers unidirectionally sandwiched between electrodes, as an important prerequisite for the reproducible measurement on the micrometer scale. These monolayers show tunable current density and on/off ratios in four orders of magnitude with controlled

SUBMITTER: Wang J 

PROVIDER: S-EPMC10275595 | biostudies-literature | 2023 Jun

REPOSITORIES: biostudies-literature