Abstract
Here a dry method of forming non-destructive multiple metal contacts to constitute molecular junctions is proposed for the first time. Silver (Ag) metal dots on a flexible sheet are prepared with simple bench chemistry as completely dry contacts. The formed flexible metal contact can be conveniently lifted and placed on organic/bio molecules to form molecular junctions with a high success rate (∼100%). The reliability of the proposed method is demonstrated on self assembled monolayers of linear organic thiols and electrografted thin film of deoxyribonucleic acid (DNA) on ITO surface. The high repeatability and systematic behaviour of these results demonstrate the reliability of the proposed method of soft contacts. The method is easy, cost-beneficial, and can be used to form different metal contacts as well as conductive pastes. Above all, it can be easily scaled up for mass production.
Published Version
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