Thesis
Development of Perovskite solar cells on ultrathin deformable substrates
- Creator
- Rights statement
- Awarding institution
- University of Strathclyde
- Date of award
- 2024
- Thesis identifier
- T16944
- Person Identifier (Local)
- 201993932
- Qualification Level
- Qualification Name
- Department, School or Faculty
- Abstract
- The work documented in this thesis revolves around the fabrication of perovskite solar cells (PSCs) on to ultra-thin substrates that are able to withstand severe mechanical deformation. PSCs on rigid glass substrates have already proved their potential reaching efficiencies of more than 26% in less than 15 years of development. Bandgap tunability according to composition, high absorption coefficient, and low cost of the materials make them excellent candidates for multitudes of applications. Moreover, continuous fabrication techniques can bring down costs significantly, easing their way into the market. On the other hand, perovskite absorbers are sensitive against oxygen and moisture, which drastically reduces their lifetime and performance. However, reports in the literature showcase the ability to bypass the intrinsic limitations of this technology, allowing for optimism. In this thesis the work focusses on fabricating PSCs on flexible ultra-thin substrates (1.4 μm). First, rigid glass substrates are employed, in an effort to optimise both materials, processes and configuration, ensuring a smooth transition to stretchable substrates. Reasonable efficiencies exceeding 12% are achieved, however new challenges arise with the employment of elastic substrates. These challenges are mitigated by changing the absorber material while simultaneously fabrication without the use of glovebox is tried and early mechanical testing shows optimistic results. Finally, an in-depth study on defect passivation via physical passivation methods and direct nucleation and crystallization control is detailed. The highest power conversion efficiency of the entire project of almost 13% is recorded while the devices show good stability under continuous illumination and remain operational after areal compression of up to 40%.
- Advisor / supervisor
- Ivaturi, Aruna
- Resource Type
- Note
- This thesis was previously under moratorium from 24/05/2024 until 24/05/2025.
- DOI
- Embargo Note
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