TY - JOUR

T1 - Carrier relaxation dynamics in InP quantum dots studied by artificial control of nonradiative losses

AU - Ignatiev, Ivan V.

AU - Kozin, Igor E.

AU - Nair, Selvakumar V.

AU - Ren, Hong-Wen

AU - Sugou, Shigeo

AU - Masumoto, Yasuaki

PY - 2000

Y1 - 2000

N2 - A method to study carrier relaxation dynamics based on the artificial control of nonradiative losses by an external electric field is proposed. Clear evidence of phonon-assisted relaxation as the main relaxation mechanism of hot electron-hole pairs in InP self-assembled quantum dots is found by applying the proposed method. Efficient one-step relaxation processes with emission of acoustic and optical phonons are observed. These findings give important insights into the interaction of the electron-hole pairs in quantum dots with the phonon subsystem.

AB - A method to study carrier relaxation dynamics based on the artificial control of nonradiative losses by an external electric field is proposed. Clear evidence of phonon-assisted relaxation as the main relaxation mechanism of hot electron-hole pairs in InP self-assembled quantum dots is found by applying the proposed method. Efficient one-step relaxation processes with emission of acoustic and optical phonons are observed. These findings give important insights into the interaction of the electron-hole pairs in quantum dots with the phonon subsystem.

M3 - статья

VL - 61

SP - 15633

EP - 15636

JO - Physical Review B-Condensed Matter

JF - Physical Review B-Condensed Matter

SN - 1098-0121

IS - 23

ER -