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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

Cardiff United Kingdom Electrical Engineering Energy Technologies Nanotechnology Optical Physics Other Other Other Other Physical Chemistry Solid State Physics

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].

Start date: April, July or October 2021 4 years Full Time.

How to Apply:

Applicants should submit an application for postgraduate study via the Cardiff University webpages (https://www.cardiff.ac.uk/study/postgraduate/research/programmes/programme/physics-and-astronomy) including:

• an upload of your CV
• a personal statement/covering letter
• two references
• Current academic transcripts

Applicants should select Doctor of Philosophy, with a start date of April, July or October 2021.

In the research proposal section of your application, please specify the project title and supervisors of this project and copy the project description in the text box provided. In the funding section, please select the ’self -funding’ option.

Candidates should hold a good bachelor’s degree (first or upper second-class honours degree) or a MSc degree in Physics or a related subject.

Applicants whose first language is not English will be required to demonstrate proficiency in the English language (IELTS 6.5 or equivalent).

Funding Notes

Self-Funded PhD Students Only


This PhD position is opening for self-funded student only, which means the candidate with own funding to cover the living cost and tuition fees will be considered.

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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