Skip to Main Content
 

Global Search Box

 
 
 

ETD Abstract Container

Abstract Header

HIGH-PERFORMANCE PEROVSKITE PHOTOVOLTAICS BASED ON NOVEL METAL HALIDE PEROVSKITES

Shen, Lening
http://rave.ohiolink.edu/etdc/view?acc_num=akron1731680171797561

Abstract Details

2024, Doctor of Philosophy, University of Akron, Polymer Engineering.
Metal halide perovskites, as an emerging and promising photovoltaic material, have drawn great concentrations in both academia and industry in the past decade. Compared to the most common silicon-based solar cells, perovskite solar cells have many advantages, such as the easy-processing and environmentally friendly manufacture. Recently, 26.7% efficiency has been certified by the National Renewable Energy Laboratory. Although this efficiency is still lower than the certified record of Si-based solar cells (27.6%), the theoretically highest efficiency of perovskite solar cells (33.7%) is higher than that of Si-based solar cells (29.4%), which indicates the huge potential of perovskite solar cells. However, there are still many issues that limit the application of perovskite solar cells, such as the stability of perovskite solar cells. Moreover, for the perovskite material itself, the severe photocurrent hysteresis and unbalanced charge carrier mobility will influence the device performance of perovskite solar cells. To solve these issues, many efforts have been made to boost the devices performance and improve the stability of perovskite solar cells. For example, the additives and surface modifications were widely reported to address stability issues. The unbalanced charge carrier mobility could be tuned by either optimizing the perovskite formula or blending other p-type/n-type materials. Furthermore, according to recent research, the main reason for the hysteresis of perovskite solar cells is the counterion migration of perovskite materials. Therefore, some organic molecules with special function groups, such as carboxyl and hydroxyl, were applied to interact with the counterions of perovskites to suppress the migration of counterions. In my research projects, my works are mainly focused on enhancing the stability and device performance of perovskite solar cells. Meanwhile, look for novel metal halide perovskite composites to reduce the photocurrent hysteresis and balance the charge carrier mobilities.
Xiong Gong (Advisor)
Fardin Khabaz (Committee Chair)
Jie Zheng (Committee Member)
Junpeng Wang (Committee Member)
Toshikazu Miyoshi (Committee Member)
296 p.
Energy; Engineering; Materials Science
Perovskite photovoltaics

Recommended Citations

Citations

  • Shen, L. (2024). HIGH-PERFORMANCE PEROVSKITE PHOTOVOLTAICS BASED ON NOVEL METAL HALIDE PEROVSKITES [Doctoral dissertation, University of Akron]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=akron1731680171797561

    APA Style (7th edition)

  • Shen, Lening. HIGH-PERFORMANCE PEROVSKITE PHOTOVOLTAICS BASED ON NOVEL METAL HALIDE PEROVSKITES. 2024. University of Akron, Doctoral dissertation. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=akron1731680171797561.

    MLA Style (8th edition)

  • Shen, Lening. "HIGH-PERFORMANCE PEROVSKITE PHOTOVOLTAICS BASED ON NOVEL METAL HALIDE PEROVSKITES." Doctoral dissertation, University of Akron, 2024. http://rave.ohiolink.edu/etdc/view?acc_num=akron1731680171797561

    Chicago Manual of Style (17th edition)

akron1731680171797561
58
© 2024, all rights reserved.
This open access ETD is published by University of Akron and OhioLINK.