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Lattice Anchoring Mediated Colloidal Quantum Dot Passivated Perovskite Superlattice Toward High Ambient Tolerance Multiple-Junction Solar Cells


   Cardiff School of Physics and Astronomy

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  Dr BH Hou, Prof W W Langbein  Applications accepted all year round  Self-Funded PhD Students Only

About the Project

Project description: Organic-inorganic lead halide perovskites solar cells (PSCs) have gained considerable attention and are recognized as promising third-generation photovoltaic technology due to their excellent photovoltaic performance and high compatibility with cost-effective manufacturing processes.[1,2] Significant progress has been made in increasing the power conversion efficiency (PCE) of the PSCs in recent years, and they have achieved a PCE of 23%. At present, the research on perovskites is mainly focused on interface modification to improve operational stability and enhance the use of the solar spectrum.[2] Considering the existence of these factors, finding a hybrid structure which can not only passivate Perovskite but also matches its conduction and valence band edges is an effective way to address the spectral utilization and ambient tolerance challenge confronting PSCs. In this project, novel ‘lattice-anchored’ hybrid materials that combine perovskites with colloidal QDs [3,4] will be systematically studied and developed. The lattice matching between the two materials can provide a stability exceeding that of the constituents. The lattice-anchored QDs:perovskite solid is predicted to enable a doubling in charge carrier generation and improving carrier mobility as a result of a reduced energy barrier for carrier transport as well as a better spectral match to the solar spectrum[1,5].

Interested applicants can find out more about our PhD programme and apply via the following link: Physics and Astronomy - Study - Cardiff University

Please submit the following documents with your application:

  • All of your University level certificates and transcripts to date
  • Two references (at least one of these must be academic)
  • Your academic CV
  • Your personal statement

Funding Notes

Please note that bench fees may be charged in addition to tuition fees for this project. This will be confirmed as part of any formal offer for this project.

References

1. Nature 570, 96 (2019), DOI 10.1038/s41586-019-1239-7
2. Isr. J. Chem. 59, 637 (2019), DOI: 10.1002/ijch.201900069
3. ACS Energy Lett. 1, 834 (2016), DOI 10.1021/acsenergylett.6b00294
4. ACS Energy Lett. 3, 1036 (2018), DOI 10.1021/acsenergylett.8b00130
5. Nano Lett. 18, 12, 7546 (2018), DOI 10.1021/acs.nanolett.8b03027

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