Slow light enhanced singlet exciton fission solar cells with a 126% yield of electrons per photon
Year: 2013
Type: article
Abstract: Singlet exciton fission generates two triplet excitons per absorbed photon. It promises to increase the power extracted from sunlight without increasing the number of photovoltaic junctions in a solar cell. We demonstrate solar cells with an external quantum efficiency of 126% by enhancing absorption in thin films of the singlet exciton fission material pentacene. The device structure exploits the long photon dwell time at the band edge of a distributed Bragg reflector to achieve enhancement over a broad range of angles. Measuring the reflected light from the solar cell establishes a lower bound of 137% for the internal quantum efficiency.
Source: Applied Physics Letters
DOI: 10.1063/1.4858176
Authors: Nicholas J. Thompson, Daniel N. Congreve, David Goldberg, Vinod M. Menon, Marc A. Baldo
Language: English
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: bronze
Awards: Graduate Research Fellowship Program, Collaborative: Engineered Nonlinear Optical Materials Based on Hybrid Nanocomposites, TAS::89 0227::TAS RECOVERY; RECOVERY ACT - CENTER FOR EXCITONICS -- EFRC; PI - MARC BALDO, G4917416065, G6191928423, TAS::89 0227::TAS RECOVERY; RECOVERY ACT - CENTER FOR EXCITONICS -- EFRC; PI - MARC BALDO, G952865507
OpenAlex ID: W2039615867