Results 111 to 120 of about 156,775 (308)
Coloring Tetrahedral Semiconductors: Synthesis and Photoluminescence Enhancement of Ternary II-III2-VI4 Colloidal Nanocrystals [PDF]
Ternary tetrahedral II-III2-VI4 semiconductors, where II is Zn or Cd, III In or Ga, and VI S, Se, or Te, are of interest in UV radiation detectors in medicine and space physics as well as CO2 photoreduction under visible light. We synthesize colloidal II-
Chen, Yunhua +8 more
core +2 more sources
Laser‐Assisted Phase Engineering of 2D MoS2 for Efficient Solution‐Processed Electronics
Advanced Materials, EarlyView.Here, local laser‐assisted phase transition from solution‐processed phase‐pure 1T′ to 2H MoS2 is shown to critically depend on the irradiation atmosphere. While processing in air leads to damaged insulating regions, inert conditions yield semiconducting 2H domains, enabling direct field‐effect transistor patterning with optimized lateral 1T′‐2H MoS2 ...
Anna Zhuravlova +10 more
wiley +1 more source
Enhancement of photoluminescence of ZnO rod structure by catechol chelation
四川大学学报. 自然科学版, 2019 The effect of catechol as chelating agent is used to study the structures and photoluminescence of ZnO one dimensional rod like materials by hydrothermal methods.
孙杰 +5 more
doaj
Charge-carrier dynamics in perovskite materials are commonly investigated using techniques that either provide spatially averaged information or probe only a single point, often overlooking nanoscale heterogeneities that critically influence device ...
Kratochvíl, Matouš +12 more
core +1 more source
Rethinking Charge Transport and Recombination in Donor‐Diluted Organic Solar Cells
Advanced Materials, EarlyView.Organic solar cells with 1–45% PM6 content in Y12 were studied to link structure and charge dynamics to performance. The conductivity follows a 3D percolation model without a sharp threshold. Donor dilution preserves the photogeneration yield, but limits the fill factor due to transport resistance losses.
Chen Wang +14 more
wiley +1 more source
Problems Related to Photoluminescence of Si Nanocrystals
It is a widely accepted opinion that the intense photoluminescence (PL) of Si nanocrystals (Si-flc) is caused by radiative recombination. Our analyses of available theoretical and experimental data show that Si-nc has an indirect band structure and ...
Purītis, Tālivaldis +1 more
core
Photoluminescence enhancement of porous silicon by organic cyano compounds
, 1998 A pronounced photoluminescence enhancement on chemically oxidized porous silicon was induced by a series of organic cyano compounds including 1,2-dicyanoethylene (CE), 1,3-dicyanobenzene (1,3-CB), 1,4-dicyanobenzene (1,4-CB), 1-cyanonaphthalene (1-CN ...
Xiao XR +8 more
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Phase Engineering of Atomically Precise Nanoclusters (APNCs) of Gold and Beyond
Advanced Materials, EarlyView.Engineering the structural phase of materials is of paramount importance for both fundamental research and practical applications. In this Review, we summarize the recent progress in controlling the phases of atomically precise nanoclusters (APNCs) of gold, silver and copper, as well as bimetallic systems. The phase‐enabled material properties of APNCs
Yitong Wang +4 more
wiley +1 more source
Next MaterialsTellurite glasses with the composition (in mol%) (100-x)(75TeO2:25Li2O):xAgNO3 (x = 0, 0.6, and 1.2) were synthesized at 800 °C in an ambient atmosphere, for investigation of the influence of Ag nanoparticles on the Te4+ semi metal ion photoluminescence (
Adriana do Carmo Capiotto +4 more
doaj +1 more source
Remarks on Photoluminescence of Si Nanocrystals
It is a widely accepted opinion that the intense photoluminescence (PL) of Si nanocrystals (Si-nc) is caused by electron-hole recombination. It is also widely believed that the Auger recombination in Si-nc occurs only at collisions of one electron and ...
Purītis, Tālivaldis +1 more
core