Results 81 to 90 of about 146,031 (367)
Advanced Functional Materials, EarlyView.Dynamic linkages are highly attractive in preparing single crystals of covalent organic polymers (COPs). Here, single crystals of two COPs CityU‐15 and CityU‐16 based on reversible B─N bonds are constructed using tetra(4‐pyridyl)tetrathiafulvalene and tetra(4‐pyridyl)porphine as monomers.
Xin Wang +7 more
wiley +1 more source
Micromachines, 2020 In this study, we propose an eight-channel monolithic optical transmitter using silicon electro-absorption modulators (EAMs) based on free-carrier injection by Schottky junctions. The transmitter consists of a 1 × 8 silicon arrayed-waveguide grating (AWG)
Uiseok Jeong +3 more
doaj +1 more source
Hot Carrier-Assisted Intrinsic Photoresponse in Graphene [PDF]
Science 334 (6056), p. 648-652 (2011), 2011 Graphene is a new material showing high promise in optoelectronics, photonics, and energy-harvesting applications. However, the underlying physical mechanism of optoelectronic response has not been established. Here, we report on the intrinsic optoelectronic response of high-quality dual-gated monolayer and bilayer graphene p-n junction devices.
arxiv +1 more source
Homogeneously bright, flexible and foldable lighting devices with functionalised graphene electrodes [PDF]
, 2016 Alternating current electroluminescent technology allows the fabrication of large area, flat and flexible lights. Presently the maximum size of a continuous panel is limited by the high resistivity of available transparent electrode materials causing a ...
Alonso, Elias Torres +4 more
core +4 more sources
Imbalanced Surface Charge Induced Phase Segregation in Mixed Halide Perovskites
Advanced Functional Materials, EarlyView.The key factor determining the phase segregation in mixed halide perovskites (MHP) is the intrinsic imbalanced surface charges in the crystal lattice. MHP films with excellent crystallinity and surface morphology can suffer severe phase segregation.
Zixin Zeng +7 more
wiley +1 more source
2D Bi2Se3 van der Waals Epitaxy on Mica for Optoelectronics Applications
Nanomaterials, 2020 Bi2Se3 possesses a two-dimensional layered rhombohedral crystal structure, where the quintuple layers (QLs) are covalently bonded within the layers but weakly held together by van der Waals forces between the adjacent QLs.
Shifeng Wang +6 more
doaj +1 more source
Carbon Energy, 2023 Lead halide perovskites have received considerable attention from researchers over the past several years due to their superior optical and optoelectronic properties, because of which they can be a versatile platform for fundamental science research and ...
Shangui Lan +7 more
doaj +1 more source
Optoelectronically probing the density of nanowire surface trap states to the single state limit [PDF]
Applied Physics Letters 106, 053117 (2015), 2014 Due to the large surface-to-volume ratio, surface trap states play a dominant role in the optoelectronic properties of nanoscale devices(1-6). Understanding the surface trap states allows us to properly engineer the device surfaces for better performance. But characterization of surface trap states at nanoscale has been a formidable challenge using the
arxiv +1 more source
Valence-band electronic structure evolution of graphene oxide upon thermal annealing for optoelectronics [PDF]
, 2016 We report valence-band electronic structure evolution of graphene oxide (GO) upon its thermal reduction. The degree of oxygen functionalization was controlled by annealing temperature, and an electronic structure evolution was monitored using real-time ...
Mattevi, C, Yuji Takakuwa, YT
core +1 more source
Advanced Functional Materials, EarlyView.PBTTT‐OR‐R, a C14‐alkoxy/alkyl‐PBTTT polymer derivative, is of substantial interest for optoelectronics due to its specific fullerene intercalation behavior and enhanced charge‐transfer absorption. Comparing this polymer with (S) and without (O) homocoupling defects reveals that PBTTT‐OR‐R(O) forms stable co‐crystals with PC61BM, while PBTTT‐OR‐R(S ...
Zhen Liu +14 more
wiley +1 more source