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Displaying 1 - 5 of 5

Ruddlesden-Popper-Phase Hybrid Halide Perovskite/Small-Molecule Organic Blend Memory Transistors

December 31, 2020
Author(s)
Murali Gedda, Emre Yengel, Hendrik Faber, Fabian Paulus, Joshua Kreb, Ming Chun Tang, Siyuan Zhang, Christina A. Hacker, Prashant Kumar, Dipti R. Naphade, Yana Vaynzof, George Volonakis, Feliciano Giustino, Thomas D. Anthopoulos
Controlling the morphology of metal halide perovskite layers during processing is critical for the reliable manufacturing of optoelectronic devices. Here we report on a strategy to control the microstructure of solution-processed layered Ruddlesden-Popper

Unraveling the compositional heterogeneity and carrier dynamics of alkali cation doped 3D/2D perovskites with improved stability

December 11, 2020
Author(s)
Ming Chun Tang, Siyuan Zhang, Nhan V. Nguyen, Edwin J. Heilweil, Christina A. Hacker, Timothy J. Magnanelli, Thomas D. Anthopoulos
Preventing the degradation of hybrid perovskite by humid air remains a challenge for their future commercial utilization. 3D/2D perovskites with hierarchical architecture have attracted significant attention due to their promising power conversion

Role of alkali-metal cations in electronic structure and halide segregation of hybrid perovskites

July 1, 2020
Author(s)
Siyuan Zhang, Ming Chun Tang, Yuanyuan Fan, Ruipeng Li, Nhan V. Nguyen, Kui Zhao, Thomas D. Anthopoulos, Christina A. Hacker
Triple-cation hybrid perovskites with mixed-halide have become one of the most dominant composition due to superior photovoltaic performance and stability. In this study, we systematically investigate the incorporation of cesium (Cs+) and potassium (K+) at

Efficient hybrid mixed-ion perovskite photovoltaics: in situ diagnostics of the roles of cesium and potassium alkali cation addition

June 19, 2020
Author(s)
Ming Chun Tang, Yuanyuan Fan, Dounya Barrit, Ruipeng Li, Hoang X. Dang, Siyuan Zhang, Timothy J. Magnanelli, Nhan V. Nguyen, Edwin J. Heilweil, Christina A. Hacker, Detlet-M Smilgies, Kui Zhao, Aram Amassian, Thomas D. Anthopoulos
Perovskite photovoltaics have made extraordinary progress in efficiency and stability in the past few years owing to process and formulation developments like antisolvent drip and mixed-cation mixed-halide compositions. Perovskite solar cells performance