Figure 2From: STM-induced light emission from thin films of perylene derivatives on the HOPG and Au substrates STM-LE spectra of PTCDI-C7 thin film (blue line) and solvent molecules (black line) on HOPG substrate (Vs = +2.2 V, It = 20 nA, acquisition time = 15 min). Both spectra are smoothened by averaging the 10 nearest points of the raw data.Back to article page