NOVELTY - Solvent(s) is heated in a vessel under conditions suitable for vaporizing water. The heated solvent is contacted with a mixture comprising water and optionally substituted polythiophene, to remove at least a portion of the water from the mixture as vapor. The water removed from the mixture is exchanged with the solvent.    USE - For exchanging solvent such as dimethylacetamide, N-methylpyrrolidone or ethylene glycol in a mixture comprising water and an optionally substituted polythiophene such as poly-3,4-ethylene dioxythiophene, used to prepare a composition of polythiophene and solvent. The composition is used to form a conductive coating, a conductive film for forming electronic implementation, electro-optic devices such as an organic light emitting device and articles such as antiradiation coating, antistatic coating, battery, catalyst, deicer panel, electrochromic window, electrochromic display, electromagnetic shielding, electromechanical actuator, electronic membrane, embedded array antenna, fuel cell, junction device, lithographic resist, non-corrosive paint, non-linear optical device, conductive paint, polymer electrolyte, radar dish, redox capacitor, sealant, semiconductor circuit, sensor, smart window, telecom device, waveguide and wire. The electromechanical actuator is biomedical device, micropositioner, microsorter, microtweezer, or microvalve. The sensor is biological, chemical, electrochemical, irradiation dosage, mechanical shock, temperature, temperature limit or time-temperature sensor. Article comprising electronic implementation is liquid crystal display, electrophoretic ink display, polymer disperse liquid crystal or identification tag which is smart label for use in customer good such as a toy or supermarket item (all claimed).    ADVANTAGE - Portion or whole of water in the mixture is exchanged as needed using standard laboratory equipment in a cost effective manner. The composition comprising optionally substituted polythiophene and non- or low toxicity exchanged solvent is easy to make and use. The composition has good conductivity, high optical transparency and environmental stability and can be used to replace indium doped tin oxide coated glass substrates that are part of many standard optical light emitting devices. The light emitting devices reduce or avoid use of hard-to-manipulate indium tin oxide components. The converted thiophene mixtures improved stability to air and moisture.    DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following:    (1) A composition formed by exchanging solvent in mixture of water and optionally substituted polythiophene;    (2) A conducting coating which has a layer comprising the composition and having a specific resistance of 10-1012 ohm/sq;    (3) A conductive film which comprises the composition and polymer, copolymer and/or graft polymer;    (4) An article comprising the composition, coating or film;    (5) Manufacture of an electronic implementation which comprises contacting composition, coating and/or film with a first polymer layer, dissolving a portion of the first polymer layer with the composition under conditions forming a hole in the first polymer layer and evaporating the solvent in the composition;    (6) Electronic implementation;    (7) Article comprising electronic implementation;    (8) Optically transparent and electrically conductive polymeric coatings which are fabricated using organic solvent based conductive polymers of poly(ethylenedioxythiophene), and poly(styrene sulfonic acid) of which environmental stability, low water content, low water affinity and flexibility are important consideration for electro-optic device applications;    (9) Fabrication of conductive polymeric coatings which involves producing coatings by employing controlled drying process of air dry for 1 hour at ambient temperatures followed by oven dry at 80degreesC for 5 minutes to improve electrical conductivity without degrading optical transmission;    (10) Electro-optic devices manufactured utilizing conductive coatings;    (11) Article comprising electro-optic implementation; and    (12) An organic light emitting device comprising metal cathode, electron transport layer, organic emitter, hole injection layer and/or glass substrate layer.    DESCRIPTION OF DRAWING(S) - The figure shows the graph of optical transmission versus surface resistance of a solvent exchanged triton AO resistant conductive polymer made from solvent exchanged Baytron.