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Showing papers by "P. Jha published in 2014"


Journal ArticleDOI
TL;DR: In this paper, the authors demonstrate the preparation of flexible polyaniline-silver (PANI-Ag) nanocomposite films via an in situ facile UV induced polymerization of aniline in presence of AgNO 3.

93 citations


Journal ArticleDOI
TL;DR: In this paper, temperature dependent in-situ Raman as well as optical microscopy of poly(3-hexylthiophene) and [6,6]-phenyl-C 71 butyric acid methyl ester (P3HT:PCBM) films were carried out to investigate the structural and morphological evolution during heating and cooling cycles of thermal annealing.

32 citations


Journal ArticleDOI
TL;DR: In this paper, the solution of thin graphene-sheets obtained from a simple ultrasonic exfoliation process was found to chemically interact with [6,6]-phenyl C71 butyric acid methyl ester (PCBM) molecules, which significantly altered the positions of highest occupied molecular orbital and lowest unoccupied molecular orbital of PCBM, which was beneficial for the enhancement of the open circuit voltage of the solar cells.
Abstract: The solution of thin graphene-sheets obtained from a simple ultrasonic exfoliation process was found to chemically interact with [6,6]-phenyl C71 butyric acid methyl ester (PCBM) molecules. The thinner graphene-sheets have significantly altered the positions of highest occupied molecular orbital and lowest unoccupied molecular orbital of PCBM, which is beneficial for the enhancement of the open circuit voltage of the solar cells. Flexible bulk heterojunction solar cells fabricated using poly 3-hexylthiophene (P3HT):PCBM-graphene exhibited a power conversion efficiency of 2.51%, which is a ∼2-fold increase as compared to those fabricated using P3HT:PCBM. Inclusion of graphene-sheets not only improved the open-circuit voltage but also enhanced the short-circuit current density owing to an improved electron transport.

11 citations


Journal ArticleDOI
TL;DR: A case of peritonitis in a continuous ambulatory peritoneal dialysis patient by two different species of enterococci is reported, and the effectiveness of linezolid for the treatment of vancomycin resistant enterococcal infection is emphasized.
Abstract: Peritonitis in a continuous ambulatory peritoneal dialysis patient by two different species of enterococci is a rare condition. We report a case of peritonitis from which vancomycin sensitive Enterococcus faecalis and vancomycin resistant Enterococcus faecium were isolated. It also emphasizes the effectiveness of linezolid for the treatment of vancomycin resistant enterococcal infection.

6 citations