Peter I. Udenze
Peter I. Udenze has a total of 17 co-authors. Here are the top co-authors by number of shared publications:
- Dawen Li
Department of Electrical and Computer Engineering, The University of Alabama, Tuscaloosa, AL 35487, USA
2 shared publications - Lusha Wang
School of Electrical Engineering and Computer Science, Washington State University, Pullman, WA, USA
2 shared publications Chuan Qin
1 shared publicationDawen Li
1 shared publication- Igor Fedin
Department of Chemistry and Biochemistry, The University of Alabama, Tuscaloosa, AL 35487, USA
1 shared publication Jiaqi Gong
1 shared publication
Latest Publications
- Open Access
- 1 November 2026
- Published by KEAI Publishing in Cyber-Physical Energy Systems
Heteroskedasticity-aware conformal uncertainty quantification for ultra-short-term PV forecasting
- 1 November 2026
- Published by KEAI Publishing in Cyber-Physical Energy Systems
Open AccessHeteroskedasticity-aware conformal uncertainty quantification for ultra-short-term PV forecasting
- 13 May 2025
- Published by American Chemical Society (ACS) in ACS Applied Materials & Interfaces
- Vol. 17 (21) , 31614-31626
Interface Modulation by Macromolecules for Enhancing the Efficiency and Stability of Perovskite Solar Cells
Both high-power conversion efficiency (PCE) and long-term stability are critical needs for a reliable perovskite solar cell (PSC). In this work, a polyamidoamine (PAMAM) dendrimer is employed to enhance the efficiency and stability of double-cation-based PSCs via different fabrication scenarios. Based on our experimental results and numerical analysis, the application of a thin layer of PAMAM macromolecules at the interface of the perovskite absorber and the hole transport layer gives rise to enhanced performance, including both efficiency and stability due to reduced interface defects and lower carrier recombination. The results suggest that PAMAM as a capping layer can effectively passivate the surface defects of the perovskite film. As a result, a PCE of 22.8% has been achieved, while the reference devices without the PAMAM passivation layer exhibit a PCE of 20.9%. The operational stability at maximum power point (MPP) under continuous 1 sun illumination and dark storage stability show that the target perovskite/PAMAM device retains 80% of its initial PCE after 1000 h. Our research could significantly impact the field by providing valuable insights into surface passivation using macromolecules to improve the performance of perovskite-based photovoltaic devices.
- 13 May 2025
- Published by American Chemical Society (ACS) in ACS Applied Materials & Interfaces
- Vol. 17 (21) , 31614-31626
Interface Modulation by Macromolecules for Enhancing the Efficiency and Stability of Perovskite Solar Cells
Both high-power conversion efficiency (PCE) and long-term stability are critical needs for a reliable perovskite solar cell (PSC). In this work, a polyamidoamine (PAMAM) dendrimer is employed to enhance the efficiency and stability of double-cation-based PSCs via different fabrication scenarios. Based on our experimental results and numerical analysis, the application of a thin layer of PAMAM macromolecules at the interface of the perovskite absorber and the hole transport layer gives rise to enhanced performance, including both efficiency and stability due to reduced interface defects and lower carrier recombination. The results suggest that PAMAM as a capping layer can effectively passivate the surface defects of the perovskite film. As a result, a PCE of 22.8% has been achieved, while the reference devices without the PAMAM passivation layer exhibit a PCE of 20.9%. The operational stability at maximum power point (MPP) under continuous 1 sun illumination and dark storage stability show that the target perovskite/PAMAM device retains 80% of its initial PCE after 1000 h. Our research could significantly impact the field by providing valuable insights into surface passivation using macromolecules to improve the performance of perovskite-based photovoltaic devices.