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21.
Graphene‐Based Inverted Planar Perovskite Solar Cells: Advancements,Fundamental Challenges,and Prospects
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Dr. Konstantinos Petridis George Kakavelakis Dr. Minas M. Stylianakis Prof. Emmanuel Kymakis 《化学:亚洲杂志》2018,13(3):240-249
Metal halide based perovskite solar cells (PSCs) are considered among the most promising photovoltaic technologies, and already present certified efficiencies that surpass 22 %. The high performance and low fabrication cost make this technology competitive with that of state‐of‐the‐art thin‐film photovoltaics. However, PSCs present some striking disadvantages that hinder their commercialization, including short operational lifetimes, high toxicity, and hysteresis effects, which lower both the performance and long‐term stability of the devices. Herein, work conducted within the last two years is summarized with regard to addressing the challenges of low‐temperature‐processed planar inverted PSCs composed of graphene‐based materials. In addition, critical challenges and the prospects of this field are discussed and some prospects for future research directions are proposed. 相似文献
22.
Stylianos HamilakisAthanase Tsolomitis 《Tetrahedron letters》2003,44(19):3821-3823
Malononitrile has been found to be acylated effectively using N-protected glycines by simultaneous activation of an amino acid carbonyl group and a malononitrile methylene group using carbonyl diimidazole (CDI). The corresponding aminoacetonitriles were isolated as enols and/or as their tautomeric forms, 2-amino-3-cyano-2-pyrrolin-4-ones. 相似文献
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Maria C. Giannakourou Stylianos Poulis Spyridon J. Konteles Akrivi Dipla Vladimiros P. Lougovois Vassiliki Kyrana Charalampos Proestos Vassilia J. Sinanoglou 《Molecules (Basel, Switzerland)》2021,26(9)
The scope of this work is the study of a combined process including a dipping step into an oregano (Origanum vulgare ssp. hirtum) infusion (OV) followed by osmotic treatment of chicken fillets at 15 °C. Chicken fillets were immersed in an osmotic solution consisting of 40% glycerol and 5% NaCl with (OV/OD) and without (OD) prior antioxidant enrichment in a hypotonic oregano solution. A comparative shelf life study of all the samples (untreated, OD and OV/OD treated) was then conducted at 4 °C in order to assess the impact of this process on the quality and shelf life of chilled chicken fillets. Microbial growth, lipid oxidation and color/texture changes were measured throughout the chilled storage period. Rates of microbial growth of pretreated fillets were significantly reduced, mainly as a result of water activity decrease (OD step). Rancidity development closely related to off odors and sensory rejection was greatly inhibited in treated fillets owing to both inhibitory factors (OD and OV), with water-soluble phenols (OV step) exhibiting the main antioxidant effect. Shelf life of treated chicken fillets exhibited a more than three-fold increase as compared to the untreated samples based on both chemical and microbial spoilage indices, maintaining a positive and pleasant sensory profile throughout the storage period examined. 相似文献
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Bächler J Bartke J Bialkowska H Bock R Brockmann R Buncic P Chase SI Derado I Eckardt V Eschke J Ferenc D Fleischmann B Foka P Fuchs M Gazdzicki M Gladysz E Harris JW Heck W Hoffmann M Jacobs PM Kabana S Kadija K Keidel R Kosiec J Kowalski M Kühmichel A Lahanas M Lee JY Ljubicic A Margetis S Morse R Nappi E Odyniec G Paic G Panagiotu AD Petridis A Piper A Posa F Poskanzer AM Pugh HG Pühlhofer F Rai G Rauch W Renfordt R Röhrich D Roland G Rothard H Runge K Sandoval A Schambach JJ Schmitz N 《Physical review letters》1994,72(10):1419-1422
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Georgakilas V Gournis D Bourlinos AB Karakassides MA Petridis D 《Chemistry (Weinheim an der Bergstrasse, Germany)》2003,9(16):3904-3908
A new approach for the synthesis of amide macrocycles, based on the use of organo-clay derivatives as controlling template, is proposed as an alternative to the rotaxane method. Dications of p-xylylene diamine inserted in the clay interlayer space act as molding pillars around which neutral diamine molecules are erected via hydrogen bonding and pi-pi interactions to form supramolecular arrays. Condensation of diamines in the supramolecular arrays with diacetyl dichlorides yields various tetramide macrocycles in good yields. Shape, aromaticity and dimensions of the reactants are factors affecting the condensation reaction. 相似文献
29.
Stylianos Hamilakis Demetrios Kontonassios Constantine Sandris 《Journal of heterocyclic chemistry》1994,31(5):1145-1150
The C-acylation reactions of the active methylene compounds, methyl cyanoacetate and Meldrum's acid, with hippuric acid, using the DCC activation and the mixed anhydride conditions, are shown to proceed through initial formation of 2-phenyl-5(4H)-oxazolone, the hippuric acid azlactone. The conditions of these reactions using the azlactone as the acylating agent were investigated and discussed. 相似文献
30.
T. Gassner A. Gumberidze M. Trassinelli R. Heß U. Spillmann D. Banaś K.-H. Blumenhagen F. Bosch C. Brandau W. Chen Chr. Dimopoulou E. Förster R.E. Grisenti S. Hagmann P.-M. Hillenbrand P. Indelicato P. Jagodzinski T. Kämpfer M. Lestinsky D. Liesen Yu.A. Litvinov R. Loetzsch B. Manil R. Märtin F. Nolden N. Petridis M.S. Sanjari K.S. Schulze M. Schwemlein A. Simionovici M. Steck Th. Stöhlker C.I. Szabo S. Trotsenko I. Uschmann G. Weber O. Wehrhan N. Winckler D.F.A. Winters N. Winters E. Ziegler H.F. Beyer 《X射线光谱测定》2020,49(1):204-208
We present a measurement of K-shell transitions in H-like gold (Au78+) using specially developed transmission type crystal spectrometers combined with Ge(i) microstrip detectors. The experiment has been carried out at the Experimental Storage Ring at GSI in Darmstadt. This is a first high-resolution wavelength-dispersive measurement of a K-shell transition in a high-Z H-like ion, thus representing an important milestone in this field. Ideas on possible future improvements are discussed as well. 相似文献