Results 71 to 80 of about 4,629,960 (206)

Polyelectrolyte Layer as a Work Function Modifier for Transparent Electrodes Enabling Efficient Perovskite Solar Cells With Superior Low‐Light Performance

EcoEnergy, EarlyView.
Polyelectrolytes represent a low‐cost and effective platform for tailoring charge extraction interfaces in inverted perovskite solar cells (PSCs). In this work, we introduce a protonated polyethyleneimine (PEI) layer (pH = 2) between the ITO electrode and the PTAA hole transport layer to increase the apparent work function of ITO by 0.066 eV and reduce
Aleksandra Furasova, Anna Botnar, Vladimir Ivanov, Vadim Belyaev, Igor Margaryan, Daniel Sapori, Aleksandra Koroleva, Soslan Khubezhov, Dmitry Shestakov, Ekaterina V. Skorb, Sergey V. Makarov   +10 more
wiley   +1 more source

Clean, robust alkali sources by intercalation within highly oriented pyrolytic graphite [PDF]

, 2020
We report the fabrication, characterization, and use of rubidium vapor dispensers based on highly oriented pyrolytic graphite (HOPG) intercalated with metallic rubidium.
Matthew B. Squires, Imhof, Eric A., Hostutler, David A., Spencer E. Olson, Benjamin K. Stuhl, Eric A. Imhof, David A. Hostutler, Stuhl, Benjamin K., Squires, Matthew B., Kohn, Rudolph N., Jr., Spanjers, Mary, Kasch, Brian L., Rudolph N. Kohn, Brian L. Kasch, Matthew S. Bigelow, Olson, Spencer E., Mary Spanjers, Bigelow, Matthew S.   +17 more
core   +1 more source

Alloying at the nanoscale

Materials & Design
We report a general flash arc synthesis (FAS) method to batch fabricate alloy micro/nanocrystals of up to eight components on a wafer-scale. Combined with experiments and first-principle calculations, we show that the shape and size distribution of ...
Cai Lu, Bozhao Wu, Yangyang Pan, Hui Fang, Jianxin Liu, Xiaoqi Yang, Ze Liu   +6 more
doaj   +1 more source

Trace element content and magnetic properties of commercial HOPG samples studied by ion beam microscopy and SQUID magnetometry

AIP Advances, 2014
In this study, the impurity concentration and magnetic response of nine highly oriented pyrolytic graphite (HOPG) samples with different grades and from different providers were determined using ion beam microscopy and SQUID magnetometry.
D. Spemann, P. Esquinazi, A. Setzer, W. Böhlmann   +3 more
doaj   +1 more source

Nanostructured Optical Superabsorbers from Carbon Nanotube Forest for Heat Management Using Environmental Blackbody Radiation from the Visible to Mid‐Infrared

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Our computational model of the optical absorption from multiwalled carbon nanotubes suggests the optical absorption depends strongly on the in‐plane electrical conductivity, and weakly on the through‐plane conductivity. Such strong absorption enables solar‐to‐thermal conversion for heat scavenging in cold climates and radiative cooling in hot climates,
José V. Anguita, Zongtao Zhang, Kai Yang, Diane J. Roth, Charles J. Footer, Sajad Haq, Peter H. Aaen, Sunday Ekpo, S. Ravi P. Silva   +8 more
wiley   +1 more source

Graphite : nitric acid (Oriented parallel)

, 1999
Inelastic Neutron Scattering spectrum of Graphite : nitric acid (Oriented parallel), C : HNO₃, measured on the TFXA instrument. 3rd stage HOPG (highly ordered pyrolytic graphite) nitric acid intercalation compound in silica cell (silica contribution ...
F. Fillaux, CNRS, Thaias, France
core   +1 more source

Scanning electrochemical microscopy for the in situ characterization of solid-electrolyte interphases: Highly oriented pyrolytic graphite versus graphite composite

, 2022
S.1486-1494The solid-electrolyte interphase (SEI) is of key importance for the performance and safety of lithium-ion batteries. Recently, scanning electrochemical microscopy (SECM) has been used to study in situ the SEI. Here, we compare the SEI of
Peters, F., Wittstock, G., Bülter, H.
core   +1 more source

Electrochemical exfoliation of graphene from pencil lead

Scientific Reports
Addressing an ever-increasing demand for graphene in recent years, simple, accessible, and effective graphene synthesis methods are essential. One of such methods is to use a highly oriented pyrolytic graphite (HOPG) to perform an electrochemical ...
Natchanon Jiwarawat, Thapan Leukulwatanachai, Kunbhass Subhakornphichan, Siwagorn Limwathanagura, Sittinadh Wanotayan, Nithi Atthi, Apirak Pankiew, Porpin Pungetmongkol   +7 more
doaj   +1 more source

Polymerization of Heteroleptic Amphiphilic Osmium(II) Complexes at the Air/Water Interface: Attempts Toward Nanoarchitectonics in Form of Molecular Textiles

European Journal of Inorganic Chemistry, EarlyView.
Amphiphilic heteroleptic osmium(II) complexes enable a bottom‐up route toward molecular textiles via interfacial polymerization. Confined to a single monolayer, noncontact atomic force microscopy reveals predominantly linear polymers with partial branching.
Luise J. Sokoliuk, Antoine Hinaut, Salome L. Heim, Laurent Marot, Olaf Fuhr, Dieter Fenske, Ernst Meyer, Marcel Mayor   +7 more
wiley   +1 more source

Graphite : nitric acid (Oriented perpendicular)

, 1999
Inelastic Neutron Scattering spectrum of Graphite : nitric acid (Oriented perpendicular), C : HNO₃, measured on the TFXA instrument. 3rd stage HOPG (highly ordered pyrolytic graphite) nitric acid intercalation compound in silica cell (silica contribution
F. Fillaux, CNRS, Thaias, France
core   +1 more source