| 초록 |
The incorporation of halide perovskites in optoelectronics have provided a fast advance in the fabrication of new sensitizers. Mixed halide perovskites as APbX3-xYx, (A = MA+, Cs+, FA+; X,Y=Cl-, Br-, I-) have been highlighted due to their facile band gap tunability by varying the halide composition for designing of optoelectronic devices. Nonetheless, their performance in real devices is strongly limited as mixed halide perovskites exhibit photo/current-induced phase segregation, losing their original photophysical properties and effective band gap tunability. The phase segregation has been the key factor to decrease the photovoltaic performance to open-circuit voltage and photoconversion efficiency, also limiting the performance of tandem devices and the potentiality of color design in perovskite LEDs. This review summarizes recent trends to hinder the phase segregation. |
