In general, you should aim for a broader peak rather than really sharp one.
The smaller peak intensities together with the broader peak widths, however, show that the ability of crystal formation for the 19 kg/mol material is reduced.
The spectra exhibit a sharp peak at ~−240 mV for 21-AGNR, a broad peak at ~−400 mV for 14-AGNR and a broader peak at ~−800 mV for 7-AGNR, as marked by green arrows, respectively.
In the case of maximum Raman gain (Fig. 4d), the 2nd Stokes spectrum consists of two sharp peaks which merge into one broader peak with the bandwidth of ~0.5 nm at high powers.
The presence of a sharp peak at t = 0, well separated by a broader peak at larger values of t, allows a clearcut definition of residue environment as either buried (t ≤ t*) or solvent exposed (t > t*), using the same threshold t* = 10 for all residues.
For concentrations well above the I/N* transition, the 1D-SAXS profile (Fig. 2a, first two panels from the top, 300 mg ml−1 and 287.4 mg ml−1) reveals a single intense and narrow X-ray Bragg reflection, superimposed on a much broader peak, with the maximum of the scattering intensity located approximately at a scattering wave vector q=qDNA=2.3 nm−1.
Both are featured by a broader peak located in a similar region of GSI.
Similarly, the broader peak at 328 cm−1 is attributed to multiple-phonon scattering processes.
The presence of a broader peak at 2θ = 23 illustrated the amorphous silica coating on Fe3O4 NPs.
The characteristic carbonyl stretching of chitosan observed at 1733 cm−1 and the broader peak at 1635 correspondingnding to the chitosan NH2 band.
S-H/V spectral ratios of the weak motion show a broader peak from 1 to 2 Hz at the KNG201 site.
