Minimal model for charge transfer excitons at the dielectric interface

Article

关键词: ORGANIC SOLAR-CELLS;    SEPARATION;    ACCEPTOR;    STATES;    COLD;   

DOI  :  10.1103/PhysRevB.93.121301

来源: SCIE

【 摘 要 】

A theoretical description of the charge transfer (CT) exciton across the donor-acceptor interface without the use of a completely localized hole (or electron) is a challenge in the field of organic solar cells. We calculate the total wave function of the CT exciton by solving an effective two-particle Schrodinger equation for the inhomogeneous dielectric interface. We formulate the magnitude of the CT and construct a minimal model of the CT exciton under the breakdown of inversion symmetry. We demonstrate that both a light hole mass and a hole localization along the normal to the dielectric interface are crucial to yield the CT exciton.

【 授权许可】

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