02169nas a2200157   4500008004100000245009300041210006900134260000800203300001600211490000600227520157400233100002501807700002301832700003001855856012601885       2013                        eng d00aCleavable and removable polymer thermosets for organic field effect transistor packaging0 aCleavable and removable polymer thermosets for organic field eff  cSEP  a22591-225960 v33 aRecent years have witnessed tremendous progress in the design and synthesis of electroactive materials for the fabrication of organic electronic devices. However, very little research effort has been devoted to developing organic packaging materials, which are crucial for the efficient functioning of the devices. Polymer thermosets (PTs) are extensively used for the packaging of microelectronic and optoelectronic devices. Although PTs are effective in providing mechanical stability and environmental protection to devices, the removal of PTs without destroying the underlying surface is cumbersome. Facile removal of PTs is essential to reuse the expensive substrates. Herein, we report the preparation of a thermoset using an aliphatic disulfide containing cross-linker, cystamine. By varying the cross-linker concentration, the mechanical property of the thermoset was varied from ductile to brittle. The ductile thermoset was coated on metal, semiconductor and flexible substrates. The thermosets were then cleaved using a biomolecule in neutral pH. We have demonstrated that the cleavage and removal of thermosets don't affect the surface properties of the underlying substrates. Furthermore, the thermosets were coated on top of organic field effect transistors to provide environmental protection. The thermoset coated devices showed a charge carrier mobility of 5.3 x 10(-3) cm(2) V-1 s(-1). Then, the thermoset was cleaved and removed, and the substrate was reused for the fabrication of organic field effect transistors with unchanged device efficiencies.1 aArulkashmir, Arulraj1 aBhosale, Manik, E.1 aKrishnamoorthy, Kothandam  uhttps://library.ncl.res.in/content/cleavable-and-removable-polymer-thermosets-organic-field-effect-transistor-packaging-001035nas a2200193   4500008004100000022001400041245013700055210006900192260011000261300001200371490000700383520021200390100002500602700002200627700001900649700001500668700003000683856012800713       2014                        eng d  a1359-734500aChemically doped perylene diimide lamellae based field effect transistor with low operating voltage and high charge carrier mobility0 aChemically doped perylene diimide lamellae based field effect tr  aTHOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLANDbROYAL SOC CHEMISTRYcOCT  a326-3280 v503 a<p>Chemical doping of an electron transporter results in the formation of a radical anion containing semiconductor which showed high electron mobility (13 cm(2) V-1 s(-1)) at low operating voltage (1 V).</p>1 aArulkashmir, Arulraj1 aJain, Bhanprakash1 aJohn, Jino, C.1 aRoy, Kanak1 aKrishnamoorthy, Kothandam  uhttps://library.ncl.res.in/content/chemically-doped-perylene-diimide-lamellae-based-field-effect-transistor-low-operating-001699nas a2200253   4500008004100000245009000041210006900131260000800200300001000208490000800218520083300226100002801059700003001087700002501117700002001142700002001162700003001182700001601212700003701228700001801265700002401283700002101307856011701328       2016                        eng d00a"Click" polymerization: a convenient strategy to prepare designer fullerene materials0 aClick polymerization a convenient strategy to prepare designer f  cOCT  a34-410 v1083 a"Click" polymeric assemblies of fullerenes, thiophenes and aryl compounds were prepared for the first time to study their spectroscopic/chemical/electronic characteristics and possible applications in photovoltaic cells. The GPC and NMR spectroscopic data confirmed a moderate to high degree of polymerization while microscopic pictures showed well-defined arrangements of fullerenes. The FTIR studies indicated that the product is free from starting azide materials, whereas thermogravimetric analysis data suggested a good stability. Band gap of the material was determined using UV-Vis spectroscopy, cyclic voltammetric techniques and compared with computational investigation. The fullerene copolymer was fabricated as acceptor material in a bulk heterojunction photovoltaic cell. (C) 2016 Elsevier Ltd. All rights reserved.1 aKrishnamurthy, Munusamy1 aKrishnamoorthy, Kothandam1 aArulkashmir, Arulraj1 aRaghavendra, V.1 aMurali, Adhigan1 aJaisankar, Sellamuthu, N.1 aMurugan, P.1 aGurusamy-Thangavelu, Senthil, A.1 aNasar, Sultan1 aMandal, Asit, Baran1 aSamanta, Debasis  uhttps://library.ncl.res.in/content/click-polymerization-convenient-strategy-prepare-designer-fullerene-materials