Investigation of the emission decay rate and charge kinetic in air-stable mixed-cation perovskite solar cell with incorporation of organic long persistent luminescence
Abstract
Perovskite solar cell (PSC) has emerged as a good candidate for low-cost and high-performance solar cell. PSC had a breakthrough with the introduction of high-performance mixed-cation FAPbI3/MAPbBr3 perovskite as light converter where the cell efficiency exceeded 20 percent, which is on par with the performance of thin film solar cell but with lower production cost. Besides, the planar PSC can be prepared in ambient air, compared to the usual perovskite materials counterpart. Although solar energy is a good renewable energy option, solar energy conversion is only possible when there s sufficient light source (i.e., during daytime). The remedy for this limitation will be the application of all-day photovoltaics, by incorporating long persistent luminescence (LPL) materials where emission under dark is possible. LPL materials work when the stored excitation energy in excited states is being released slowly as light, as a consequence of internal charge recombination. In order to reduce the fabrication cost of LPL materials, organic LPL materials like TMB and PPT are favored. Unfortunately, the approach to incorporate blended organic LPL materials in the PSC has not been explored where the correlation between the amount of organic LPL materials, module architecture and the performance effect (e.g., efficiency, emission decay rate, charge kinetic and band-gap alignment) are not fully understood. Therefore, this project is envisioned to investigate the emission decay rate of the blended organic LPL materials and its correlation to the charge kinetic and architecture of FAxMA1-xPbI3 PSC module. The research methods involve wet solution process and planar solar cell fabrication. New data and observation on the efficiency of all-day photovoltaic are expected to be produced. The optimized solar cell is anticipated to achieve 20 percent efficiency under dark conditions thereby providing opportunities for it to be developed for commercialization, in-line with Malaysia’s National Green Technology Policy and National Science and Technology Policy.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Jan 04, 2023
- Source ID
- FA23862114106
Entities
People
- Hieng Kiat Jun
Organizations
- Air Force Office of Scientific Research
- United States Air Force
- Universiti Tunku Abdul Rahman