The already published papers proved that hydrogen bonding interactions can weaken the C-H bonding energy, which lead to the redshift of corresponding peak on the FT-IR spectra [44, 45].
The optical properties of Mo15MnBS31, Mo15MnCS31, and Mo15MnNS31 all reflect the redshift phenomenon which leads to the MoS2 monolayer absorbing more infrared light.
The presence of a thienyl group in 5 b relative to a pyridyl group in 5 a leads to a redshift of the lowest-energy absorption maximum by 20 nm.
Previous study has revealed that thickness increase of the InGaAs SRL leads to redshift of the PL peak and intensity enhancement, which is corresponding to SRL-dominating region marked by the red arrow at the right side [9].
As mentioned above, the InGaAs SBL also leads to redshift of the PL peak, likely through the same mechanism as that of the SRL.
The subsequent attachment of APTES and then nanospheres leads to a redshift in the spectrum corresponding to the addition of material to the sensor.
And the interaction of the dipole and quardrupole leads to a reduction of the depolarization field, which is the origin of the redshift of Au LSP resonances [14].
An increase in anodizing voltage between 100 to 115 V leads to a redshift in the PL emissions and improves the PL activity of the layers in the visible region.
It is found that the variation of distinct sizes of the structure leads to either a redshift and/or a blueshift of the resonant peaks of the intraband optical spectrum.
This leads to a narrowing of the InAs QD bandgap and, in turn, to the redshift of the PL band as well as the photoresponse onset toward IR [1 6, 19, 35].
