01922nas a2200145   4500008004100000022001400041245007000055210006800125260007700193300001400270490000700284520135400291100002901645856010201674       2010                        eng d  a0935-964800aDilute doping, defects, and ferromagnetism in metal oxide systems0 aDilute doping defects and ferromagnetism in metal oxide systems  aBOSCHSTRASSE 12, D-69469 WEINHEIM, GERMANYbWILEY-V C H VERLAG GMBHcAUG  a3125-31550 v223 a<p>Over the past decade intensive research efforts have been carried out by researchers around the globe on exploring the effects of dilute doping of magnetic impurities on the physical properties of functional non-magnetic metal oxides such as TiO2 and ZnO. This effort is aimed at inducing spin functionality (magnetism, spin polarization) and thereby novel magneto-transport and magneto-optic effects in such oxides. After an early excitement and in spite of some very promising results reported in the literature, this field of diluted magnetic semiconducting oxides (DMSO) has continued to be dogged by concerns regarding uniformity of dopant incorporation, the possibilities of secondary ferromagnetic phases, and contamination issues. The rather sensitive dependence of magnetism of the DMSO systems on growth methods and conditions has led to interesting questions regarding the specific role played by defects in the attendant phenomena. Indeed, it has also led to the rapid re-emergence of the field of defect ferromagnetism. Many theoretical studies have contributed to the analysis of diverse experimental observations in this field and in some cases to the predictions of new systems and scenarios. In this review an attempt is made to capture the scope and spirit of this effort highlighting the successes, concerns, and questions.</p>1 aOgale, Satishchandra, B.  uhttps://library.ncl.res.in/content/dilute-doping-defects-and-ferromagnetism-metal-oxide-systems-001218nas a2200181   4500008004100000022001400041245013600055210006900191260011000260300001600370490000600386520042600392100002400818700002000842700001800862700002900880856012700909       2012                        eng d  a2046-206900aDye sensitized solar cell (DSSC) by a novel fully room temperature process: a solar paint for smart windows and flexible substrates0 aDye sensitized solar cell DSSC by a novel fully room temperature  aTHOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLANDbROYAL SOC CHEMISTRYcMAR  a11645-116490 v23 a<p>We report the development of a titania-nanoparticle-based solar paint which gives a conversion efficiency of 3.6% on FTO/glass substrates under fully room temperature processing. The paint cures quickly saving time in the cell fabrication process. Even on a flexible ITO/PET substrate efficiency of 2.4% was achieved. We present and analyze the results of described materials and device property characterizations.</p>1 aAgarkar, Shruti, A.1 aDhas, Vivek, V.1 aMuduli, Subas1 aOgale, Satishchandra, B.  uhttps://library.ncl.res.in/content/dye-sensitized-solar-cell-dssc-novel-fully-room-temperature-process-solar-paint-smart-002174nas a2200205   4500008004100000022001400041245014700055210006900202260007100271300001400342490000700356520133100363100002401694700002401718700002601742700002401768700002901792700001801821856012901839       2014                        eng d  a0020-166900aDefects in chemically synthesized and thermally processed ZnO nanorods: implications for active layer properties in dye-sensitized solar cells0 aDefects in chemically synthesized and thermally processed ZnO na  a1155 16TH ST, NW, WASHINGTON, DC 20036 USAbAMER CHEMICAL SOCcAPR  a3961-39720 v533 a<p>We have carried out the effect of post annealing temperatures on the performance of solution-grown ZnO rods as photoanodes in dye-sensitized solar cells. Keeping our basic objective of exploring the effect of native defects on the performance of DSSC, we have synthesized ZnO rods having length in the range of 2-5 mu m by a modified sonication-induced precipitation technique. We performed extensive characterization on the samples annealed at various temperatures and confirmed that annealing at 300 degrees C results in ZnO rods with minimum native defects that have been identified as doubly ionized oxygen vacancies. The electron paramagnetic resonance measurements on the samples, on the other hand, confirmed the presence of shallow donors in the low temperature annealed samples. We also carried out electrochemical impedance measurements to understand the transport properties at different interfaces in the solar cell assembly. We could conclude that solution-processed ZnO rods annealed at 300 degrees C are better suited for fabricating DSSC with improved efficiency (1.57%), current density (5.11 mA/cm(2)), and fill factor (45.29%). On the basis of our results, we were able to establish a close connection between the defects in the metal oxide electron transporting nano system and the DSSC performance.</p>1 aDas, Partha, Pratim1 aAgarkar, Shruti, A.1 aMukhopadhyay, Soumita1 aManju, Unnikrishnan1 aOgale, Satishchandra, B.1 aDevi, Sujatha  uhttps://library.ncl.res.in/content/defects-chemically-synthesized-and-thermally-processed-zno-nanorods-implications-active-0