In the last decade there has been increased emphasis on crystallizingpolymers or assembling small organic molecules to form well orderedorganic films. There are many polymers which can not be crystallized bystandard methods that protein crystallographers use. We have demonstrateda technique that has possibility to be used as a tool to crystallizecertain molecules. On the other hand, the development of the field oforganic electronics has benefited from the unique set of characteristicsoffered by π-conjugated oligmoers and polymers. These molecules showsemiconducting properties. Remarkable progresses have been made on thedevelopment of the devices based on organic semiconducting (OSE)materials due to the unique capabilities offered by the tunability andsynthesis of organic molecules together with the possibility of low-costand large area fabrication at moderate substrate temperature. Some fieldsof applications are organic thin-film transistors (OTFTs), organiclight-emitting diodes (OLEDs), photovoltaic cells etc. Though themobility of the OSE thin films are relatively lower than that ofinorganic counterparts like Si or Ge but highly ordered films canimprove mobility and demonstrated performance of organic thin filmtransistors (OTFT) based on these ordered films suggest that they arecompetitive candidates for replacing the existing or novel thin filmtransistors applications requiring large-area coverage, structuralflexibility, low temperature processing. In this talk I am going todiscuss how to assemble OSE molecules to grow well ordered organicfilms which show improved device properties. Nevertheless, there are manyopen questions and challenges related to the understanding the growthmechanisms and physical principles of molecular ordering in the organicfilms.
