PbS Quantum-Dot Depleted Heterojunction Solar Cells Employing CdS Nanorod Arrays as the Electron Acceptor with Enhanced Efficiency.
作者： Xudong Yao , Shangjing Liu , Yajing Chang , Guopeng Li , Longfei Mi
关键词: Nanoparticle 、 Optoelectronics 、 Nanorod 、 Electron acceptor 、 Electron 、 Heterojunction 、 Energy conversion efficiency 、 Nanotechnology 、 Diffusion 、 Quantum dot 、 Materials science
摘要: Depleted heterojunction (DH) solar cells have shown great potential in power conversion. A 3-D DH structure was first designed and fabricated through a layer-by-layer spin-coating technique to increase the interfacial contact of p-type PbS quantum dots (QDs) n-type CdS nanorod arrays. As result, decent conversion efficiency 4.78% this achieved, which is five times planar similar thickness. In structure, arrays (NRs) were grown vertically as electron acceptors, on deposited absorbing materials fashion. The results are discussed view effective transportation electrons NRs than hopping large nanoparticle-based film, enlarged area, shortened carrier diffusion distance.
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