News&Events
Home
>
News&Events
>
CEM Collections
CEM Collections
- 2016-12-01 Catalytic Transformation of Lignocellulose into Chemicals and Fuel Products in Ionic Liquids
- Innovative valorization of naturally abundant and renewable lignocellulosic biomass is of great importance in the pursuit of a sustainable future and biobased economy. Ionic liquids (ILs) as an import...
- 2016-11-28 The influence of large cations on the electrochemical properties of tunnel-structured metal oxides
- Metal oxides with a tunnelled structure are attractive as charge storage materials for rechargeable batteries and supercapacitors, since the tunnels enable fast reversible insertion/extraction of char...
- 2016-11-28 Nanomechanical electro-optical modulator based on atomic heterostructures
- Two-dimensional atomic heterostructures combined with metallic nanostructures allow one to realize strong light–matter interactions. Metallic nanostructures possess plasmonic resonances that can be m...
- 2016-11-28 Tuning charge and correlation effects for a single molecule on a graphene device
- The ability to understand and control the electronic properties of individual molecules in a device environment is crucial for developing future technologies at the nanometre scale and below. Achievin...
- 2016-11-28 A stable lithium-rich surface structure for lithium-rich layered cathode materials
- Lithium ion batteries are encountering ever-growing demand for further increases in energy density. Li-rich layered oxides are considered a feasible solution to meet this demand because their specific...
- 2016-11-28 Reducing the efficiency–stability–cost gap of organic photovoltaics with highly efficient and stable small molecule acceptor ternary solar cells
- Technological deployment of organic photovoltaic modules requires improvements in device light-conversion efficiency and stability while keeping material costs low. Here we demonstrate highly efficien...
- 2016-11-28 Enhanced stability and efficiency in hole-transport-layer-free CsSnI3 perovskite photovoltaics
- Photovoltaics based on tin halide perovskites have not yet benefited from the same intensive research effort that has propelled lead perovskite photovoltaics to >20% power conversion efficiency, due t...
- 2016-11-28 Doped polymer semiconductors with ultrahigh and ultralow work functions for ohmic contacts
- To make high-performance semiconductor devices, a good ohmic contact between the electrode and the semiconductor layer is required to inject the maximum current density across the contact. Achieving o...
- 2016-11-28 The evolving quality of frictional contact with graphene
- Graphite and other lamellar materials are used as dry lubricants for macroscale metallic sliding components and high-pressure contacts. It has been shown experimentally that monolayer graphene exhibit...
- 2016-11-25 Nonstoichiometric acid–base reaction as reliable synthetic route to highly stable CH3NH3PbI3 perovskite film
- Perovskite solar cells have received worldwide interests due to swiftly improved efficiency but the poor stability of the perovskite component hampers the device fabrication under normal condition. He...
- 2016-11-25 Direct and continuous strain control of catalysts with tunable battery electrode materials
- We report a method for using battery electrode materials to directly and continuously control the lattice strain of platinum (Pt) catalyst and thus tune its catalytic activity for the oxygen reduction...
- 2016-11-24 Triarylamine: Versatile Platform for Organic, Dye-Sensitized, and Perovskite Solar Cells
- Triarylamine (TAA) and related materials have dramatically promoted the development of organic and hybrid photovoltaics during the past decade. The power conversion efficiencies of TAA-based organic s...
- 2016-11-23 Ionic solutions of two-dimensional materials
- Strategies for forming liquid dispersions of nanomaterials typically focus on retarding reaggregation, for example via surface modification, as opposed to promoting the thermodynamically driven dissol...
- 2016-11-22 Structure of a model TiO2 photocatalytic interface
- The interaction of water with TiO2 is crucial to many of its practical applications, including photocatalytic water splitting. Following the first demonstration of this phenomenon 40 years ago there h...
- 2016-11-22 Hybrid organic–inorganic inks flatten the energy landscape in colloidal quantum dot solids
- Bandtail states in disordered semiconductor materials result in losses in open-circuit voltage (Voc) and inhibit carrier transport in photovoltaics. For colloidal quantum dot (CQD) films that promise ...
- 2016-11-22 Enhanced electron extraction using SnO2 for high-efficiency planar-structure HC(NH2)2PbI3-based perovskite solar cells
- Planar structures for halide perovskite solar cells have recently garnered attention, due to their simple and low-temperature device fabrication processing. Unfortunately, planar structures typically ...
- 2016-11-22 Perovskite-perovskite tandem photovoltaics with optimized bandgaps
- We demonstrate four and two-terminal perovskite-perovskite tandem solar cells with ideally matched bandgaps. We develop an infrared absorbing 1.2eV bandgap perovskite, FA0.75Cs0.25Sn0.5Pb0.5I3, that c...
- 2016-11-18 Ultrafine jagged platinum nanowires enable ultrahigh mass activity for the oxygen reduction reaction
- Improving the platinum (Pt) mass activity for the oxygen reduction reaction (ORR) should optimize both the specific activity and the electrochemical active surface area (ECSA). We show solution-synthe...
- 2016-11-15 Free Electrons to Molecular Bonds and Back: Closing the Energetic Oxygen Reduction (ORR)–Oxygen Evolution (OER) Cycle Using Core–Shell Nanoelectrocatalysts
- Nanomaterial science and electrocatalytic science have entered a successful “nanoelectrochemical” symbiosis, in which novel nanomaterials offer new frontiers for studies on electrocatalytic charge t...
- 2016-11-15 Conjugated Polymer Zwitterions: Efficient Interlayer Materials in Organic Electronics
- Conjugated polymer zwitterions (CPZs) are neutral, hydrophilic, polymer semiconductors. The pendent zwitterions, viewed as side chain dipoles, impart solubility in polar solvents for solution processi...