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Rui Chen Master Thesis Ohiolink.pdf (3.26 MB)

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HIGH PERFORMANCE SOLUTION-PROCESSED PEROVSKITE PHOTOVOLTAICS BY NOVEL MATERIALS

Chen, Rui
http://rave.ohiolink.edu/etdc/view?acc_num=akron1617818409646272

Abstract Details

2021, Master of Science, University of Akron, Polymer Engineering.
Organic-inorganic halide perovskites have been the next generation photovoltaics as it excellent photoelectronic properties. This thesis mainly reported novel photoactive layer materials called low-dimension perovskite and their corresponding PVs, including solar cells and photodetectors. In CHAPTER I, the fundamental physic of perovskite materials and overviews of perovskite solar cells and photodetectors were reported. In CHAPTER II, enhanced device performance of perovskite photovoltaics by one-step self-assembled (PEA)2(MA)n-1PbnI3n+1/MAPbI3 2D/3D bilayer thin films post-treated by 1-butanol (where PEA is phenethylammoniu and MA is methylammonium) were report. Compared to 3D MAPbI3 thin films, (PEA)2(MA)n-1PbnI3n+1/MAPbI3 2D/3D bilayer thin films not only possess larger crystals, but also exhibit enhanced build-in potentials, suppressed charge carrier recombination, boosted charge carrier transport, and shortened charge carrier extraction time. As a result, perovskite solar cell by (PEA)2(MA)n-1PbnI3n+1/MAPbI3 2D/3D bilayer thin films exhibit 22.13 % power conversion efficiency with dramatically enhanced stability. Moreover, at room temperature, perovskite photodetectors by (PEA)2(MA)n-1PbnI3n+1/MAPbI3 2D/3D bilayer thin films show a photoresponsivity of 1.38 AW-1, and a detectivity of 6.52 × 1014 Jones (1 Jones = 1 cm Hz1/2 W-1), and a linear dynamic range of over 167 dB. In CHAPTER III, the improved device performance of perovskite photovoltaics by one-step self-assembled (PEA)2(MA)79Pb80I241 thin film incorporating with 0.1% Nd3+ were exhibited. Compared with 3D MAPbI3 thin films, (PEA)2(MA)79Pb80I241: Nd3+ thin film not only possess larger crystal, but also shown enhanced build-in potentials, suppressed charge carrier recombination, boosted charge carrier mobility, and shortened charge carrier extraction time. As a result, perovskite solar cell by (PEA)2(MA)79Pb80I241: Nd3+ thin film exhibit 21.66 % power conversion efficiency with extremely improved stability. Perovskite photodetectors by (PEA)2(MA)79Pb80I241: Nd3+ thin film show a photoresponsivity of 0.83 AW-1, and a detectivity of 4.29 × 1014 Jones (1 Jones = 1 cm Hz1/2 W-1), and a large linear dynamic range over 165 dB. All these results demonstrate that we develop a facile way to realize high-performance and stable perovskite photovoltaics. CHAPTER IV is a summary of two works in terms of perovskite solar cells and perovskite photodetectors. Finally, CHAPTER V is an outlook for future work of perovskite photovoltaics.
Xiong Gong (Advisor)
Weinan Xu (Committee Chair)
Chunming Liu (Committee Member)
170 p.
Chemistry; Optics; Organic Chemistry; Polymer Chemistry

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Citations

  • Chen, R. (2021). HIGH PERFORMANCE SOLUTION-PROCESSED PEROVSKITE PHOTOVOLTAICS BY NOVEL MATERIALS [Master's thesis, University of Akron]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=akron1617818409646272

    APA Style (7th edition)

  • Chen, Rui. HIGH PERFORMANCE SOLUTION-PROCESSED PEROVSKITE PHOTOVOLTAICS BY NOVEL MATERIALS. 2021. University of Akron, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=akron1617818409646272.

    MLA Style (8th edition)

  • Chen, Rui. "HIGH PERFORMANCE SOLUTION-PROCESSED PEROVSKITE PHOTOVOLTAICS BY NOVEL MATERIALS." Master's thesis, University of Akron, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=akron1617818409646272

    Chicago Manual of Style (17th edition)

akron1617818409646272
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