High Performance PbS Quantum Dot/Graphene Hybrid Solar Cell with Efficient Charge Extraction
Source abstract
Abstract
Hybrid colloidal quantum dot (CQD) solar cells are fabricated from multilayer stacks of lead sulfide (PbS) CQD and single layer graphene (SG). The inclusion of graphene interlayers is shown to increase power conversion efficiency by 9.18%. It is shown that the inclusion of conductive graphene enhances charge extraction in devices. Photoluminescence shows that graphene quenches emission from the quantum dot suggesting spontaneous charge transfer to graphene. CQD photodetectors exhibit increased photoresponse and improved transport properties. We propose that the CQD/SG hybrid structure is a route to make CQD thin films with improved charge extraction, therefore resulting in improved solar cell efficiency.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Quantum Dots Synthesis And Properties · Carbon and Quantum Dots Applications · Graphene research and applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Engineering Science, University of Oxford, Parks Road, Oxford OX1 3PJ, U.K.
Department of Materials, University of Oxford, Parks Road, Oxford OX1 3PH, U.K.
Jeonju Centre, Korea Basic Science Institute, Jeonju, Jeollabuk-do 561-180, Republic of Korea
Department of Engineering, University of Cambridge, 9 JJ Thomson Avenue, Cambridge CB3 0FA, U.K.
Funding
European Research Council · National Research Foundation of Korea
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