luSb-based quantum \Yell lie1d-cffcct transistors with gate length dowll 10 0.2 III a]'c fabricated for the first time. Hull measurements show that room temperature electron lllobili ties over 30.000 Clll l V l s" are achieved with a s heet carrier densit�· over I 1012 em· l in a modulation doped InSb quantuIlI well with At�I I .,Sb ball'ier layers. Devices wilh 0.2 III gute length and 20% Al barrier exhibit DC tmns"onduclance of 625 SI 111 and If of 150 GHz at Vos �0.5V. 0.2 m devices fabricatcd Oll 30% Al barrier 111 0leriul ,h"'" DC tral1SC"lldlietance 01'920 51 mat Vos "O.5V. Benchmarking against state-of-the-art Si MOSFET s indicate� that InSbW transistors can a"hic\"c equivalent high speed performance witll 5-10 times lower clvnamic power di"ipation and therefore are a promising device technology 10 com plement scaled sil icon-based dC"ices for very low power. ultrn-high speed logic applications.

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The discovery of conducting polymers (CPs) opens up a new path for the researchers to design them accordingly to some specific applications. Poly(3,4ethylenedioxythiophene)‐tosylate (PEDOT‐Tos) being one of the bicyclic polythiophene derivatives has been drawing much attention in the recent years. PEDOT is a well‐known CP with high electrical conductivity and balanced with small counter ion Tos seems to be a material capable in various applications. The improved structural order with the semi‐metallic character as supported by the electronic band structure activates the scientific community to employ PEDOT‐Tos in various applications. Reports show that for the last decade categorically PEDOT‐Tos has been synthesized, which finds applications not only in thermoelectrics, different type of sensors including mechanical and optical, as electrodes in organic electronics but also in biomedical applications specifically in tissue culture. The present work aims at implementing a comprehensive update on the synthesis of PEDOT‐Tos with the structure and properties and also a state‐of‐art review as a promising material in various applications with anticipation that the present work motivate the researchers to bring out PEDOT‐Tos as a multifunctional material.

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