Figure 2
From: Broadband energy transfer to sensitizing dyes by mobile quantum dot mediators in solar cells
Broadband enhancement by QDs and their solar cell characteristics.
(a) Absorption of bulk solar cells containing different CdSe quantum dots (QDs). (b) External quantum efficiency (EQE) of solar cells with QDs showing broadband energy transfer. (c) Current density–voltage (J–V) curve of solar cells under the AM 1.5 standard; the solar cell parameters are tabulated in Table S1. (d) EQE enhancement of solar cells containing QDs (red QDs; pink line), Ag plasmonic nanoparticles (~10 nm; blue line), TiO2 scattering layer (~400 nm; green line) and reference cells (without QDs; black dashed line). (e) Calculated scattering power of individual CdSe QDs (pink line), Ag plasmonic (blue) and TiO2 scattering layer (green). (f) Images of electrodes on the reference devices (1, 5), TiO2 scattering layer (2, 6), Ag plasmonic nanoparticles (3, 7) and CdSe QDs (4, 8). The solar cells employing QDs exhibit semi-transparency on both sides (photo and counter–electrode).
