How multiple decay paths affect the photoluminescence intensity in CuInS2

Photoluminescence Study of Deep Levels in CuInS2 Thin Films Grown by Sulfurization Using Ditertiarybutylsulfide

“…2(b). Many studies have shown that the PL emission intensity I PL and the excitation intensity L exc often follows a power law, 33,34) i.e.,…”

“…We find a K value of 0.85, which is indeed consistent with DAP emission. 33,34) The PL peak energy of the P1 emission is plotted as a function of the excitation power in Fig. 2(c).…”

“…4(b), the excitation intensity dependence of the peak P1 emission intensity follows the power law with exponent values K of 0.87, further indicating the DAP transitions of the corresponding states. 33,34) The energy of the P2 emission is plotted in Fig. 4(c) as a function of the excitation power.…”

Sulfurization Growth of CuInS2 Thin Film Using Ditertiarybutylsulfide as a Less Hazardous Source

“…Because there are a limited number of reports on the defects and impurity levels of CuInS 2 alloy, the donor and the acceptor responsible for emissions have not been clearly identified. [16][17][18][19] Therefore, further studies are required to clarify the origins of the PL spectra. For the PL spectrum of the sample sulfurized at the intermediate temperature of 515 C, both characteristic peaks are observed.…”