Digital polymerase chain reaction(dPCR) is an absolute quantitative PCR reaction which can disperse the sample into numerous independent reaction units, in order to realize absolute quantitative detection in the sense of single molecule.
Metamaterial perfect absorbers (MPAs) often consist of metal and dielectric elements with dynamic control features of only subwavelength thicknesses. MPAs can achieve unity absorptivity of corresponding electromagnetic waves, and the sizes are much smaller than the working wavelength bands. These special absorbers with fixed absorption performance show great potentials in many important scienti?c and technical applications such as thermal emitters, energy harvesting, infrared detection and imaging.
The development of efficient electrocatalyst to produce molecular hydrogen from water is receiving considerable attention, in an effort to decrease our reliance on fossil fuels. Recently, silver sulfide (Ag2S) nanocrystals have attracted enormous interests due to its excellent properties, including negligible toxicity, adjustable band gap through size control and surface modification and long term stability in acid environment.
Due to the wide application of photodetectors in the fields including optical communication, environmental monitoring, and image sensing, the research for developing highly efficient photodetectors has attracted extensive attention over the past decades. Since 2009, methyl ammonium lead halide (CH3NH3PbX3, X=halogen) perovskites have become one of the hot topics in material science for light collection in photodetectors.
Raman spectroscopy, as a label-free, nondestructive fingerprint detection technique, has been widely used in various application fields, including trace-molecule detection, biomolecular analysis, chemical analysis, material characterization, bioassay, and archeological and criminological identification. However, normal Raman signals are too low to be detected, which limits the application of Raman spectroscopy in many fields.
Due to the wide application of photodetectors in the fields including optical communication, environmental monitoring, and image sensing, the research for developing highly efficient photodetectors has attracted extensive attention over the past decades. Since 2009, methyl ammonium lead halide (CH3NH3PbX3, X=halogen) perovskites have become one of the hot topics in material science for light collection in photodetectors.