Three photon absorption;
Nonlinear optics;
Polymer solar cell;
OPTICAL NONLINEARITIES;
3-PHOTON ABSORPTION;
PHASE-CONJUGATION;
SOLAR-CELLS;
POLYDIACETYLENE;
D O I:
10.1117/12.2035291
中图分类号:
O43 [光学];
学科分类号:
070207 ;
0803 ;
摘要:
Nonlinear absorption is investigated in a poly (3-hexylthiophene) (P3HT) PCBM fullerene blend, one of the most popular organic solar cell's materials. We observe three-photon absorption in the bulk hetero junction photodiode configuration. The output photocurrent of the photodiode is interpreted in terms of the three-photon absorption properties of the P3HT: PCBM blend at 1550 nm.