02088nas a2200229   4500008004100000022001400041245017400055210006900229260011000298300001600408490000600424520111500430100001601545700002801561700001801589700003001607700002401637700002101661700002301682700002101705856013201726       2015                        eng d  a2046-206900aDetailed study on the thermal, photo-physical and electrochemical properties and OFET applications of D-pi-A-pi-D structured unsymmetrical diketopyrrolopyrrole materials0 aDetailed study on the thermal photophysical and electrochemical   aTHOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLANDbROYAL SOC CHEMISTRYcOCT  a94859-948650 v53 a<p>A series of seven unsymmetrical diketopyrrolopyrrole (DPP) derivatives with donor-pi-acceptor-pi-donor (D-pi-A-pi-D) architecture have been designed, synthesized and well characterised. The effect of the electron donating capacity and extent of electronic conjugation of the end-capping units on the thermal, photo-physical and electrochemical properties of the synthesized materials was thoroughly investigated using various experimental techniques and theoretical calculations. Organic field-effect transistors (OFETs) were fabricated using these materials to obtain their hole/electron transporting characteristics. All these materials showed moderate to good hole transporting ability, and the OFET fabricated using the DPP-derivative with benzofuran and pyrene end groups exhibited a hole mobility of 6.7 x 10(-4) cm(2) V-1 s(-1) with VT of similar to 9 V. The observed photo-physical, electrochemical, thermal, and charge carrier properties of the synthesized DPP-derivatives indicated their applicability in various areas like organic photovoltaics, disposable electronics and biomedical devices.</p>1 aBharath, D.1 aChithiravel, Sundaresan1 aSasikumar, M.1 aChereddy, Narendra, Reddy1 aShanigaram, Balaiah1 aBhanuprakash, K.1 aKrishnamoorthy, K.1 aRao, Jayathirtha  uhttps://library.ncl.res.in/content/detailed-study-thermal-photo-physical-and-electrochemical-properties-and-ofet-applications-0