Increasing photon absorption and stability of PbS quantum dot solar cells using a ZnO interlayer
作者： Lai-Hung Lai , Mark J. Speirs , Feng-Kuei Chang , Laura Piveteau , Maksym V. Kovalenko
DOI: 10.1063/1.4934946
关键词: Nanoparticle 、 Absorption (electromagnetic radiation) 、 Quantum efficiency 、 Heterojunction 、 Materials science 、 Multiple exciton generation 、 Energy conversion efficiency 、 Optoelectronics 、 Quantum dot 、 Wide-bandgap semiconductor
摘要: We compared PbS quantum dot (QD) solar cells with different cathode interlayer materials, namely, LiF and ZnO nanoparticles, using the same device structure. Solar fabricated gave a power conversion efficiency of 4.8%, which is higher (above experimental variation) than 4.1% obtained interlayer. found that alters spatial distribution optical field, leading to an increase in external visible range. Furthermore, devices as showed more stable performance ones LiF, practically no degradation after 1 month inside N2 glovebox.
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