Organic Monolayer Determination on Semiconductor Substrates

Vector assembly of colloids on monolayer substrates

The key to spontaneous and directed assembly is to encode the desired assembly information to building blocks in a programmable and efficient way. In computer graphics, raster graphics encodes images on a single-pixel level, conferring fine details at the expense of large file sizes, whereas vector graphics encrypts shape information into vectors that allow small file sizes and operational tran...

Patterned growth of large oriented organic semiconductor single crystals on self-assembled monolayer templates.

This work demonstrates a method for inducing site-specific nucleation and subsequent growth of large oriented organic semiconductor single crystals using micropatterned self-assembled monolayers (SAMs). We demonstrate growth of oriented, patterned, and large organic semiconductor single crystals for potential use in organic electronic devices. The control over multiple parameters in a single sy...

Organic epitaxial layers on organic substrates

Direct determination of monolayer MoS2 and WSe2 exciton binding energies on insulating and metallic substrates

Understanding the excitonic nature of excited states in two-dimensional (2D) transition-metaldichalcogenides (TMDCs) is of key importance to make use of their optical and charge transportproperties in optoelectronic applications. We contribute to this by the direct experimentaldetermination of the exciton binding energy (Eb,exc) of monolayer MoS2 and WSe2 on twofundamentally...

Flip Chip on Organic Substrates

The attachment of a flip chip of moderate size and pitch to an organic substrate has lost much of its mystique in recent years. A small but increasing number of companies, including several contract manufacturers, is establishing flip chip capabilities. This can, in fact, be done in a step by step fashion and with moderate investments in facilities, equipment and training. Still, since only the...