David Mitzi1
Duke University1
Two-dimensional hybrid organic-inorganic perovskite (2D HOIP) semiconductors based on metal halide frameworks offer unprecedented opportunity to tailor structural and materials properties using the full flexibility afforded by the realms of inorganic and organic chemistry,<sup>1</sup> and such tunability offers wide-ranging potential for applications including solar cells, light-emitting devices, detectors, transistors and advanced computing devices. This talk will focus on examining the role that the organic cation plays in tuning one or more of the following: 1) self-assembling quantum well structures with predictable energy band offsets and charge carrier response,<sup>2,3</sup> 2) chirality transfer and symmetry breaking within the inorganic framework,<sup>4</sup> and/or 3) melting and glass formation/crystallization kinetics.<sup>5,6</sup> Recent examples of such structure-property flexibility highlight the unique versatility and promise of using the organic component to control charge, light and spin within the wide-ranging 2D HOIP family.<br/><br/>1. D. B. Mitzi, K. Chondroudis, C. R. Kagan, <i>IBM J. Res. & Dev. </i>45, 29 (2001).<br/>2. D. Seyitliyev, X. Qin, M. K. Jana, S. M. Janke, X. Zhong, W. You, D. B. Mitzi, V. Blum, K. Gundogdu, <i>Adv. Funct. Mater. </i>33, 2213021 (2023).<br/>3. R. Song, C. Liu, Y. Kanai, D. B. Mitzi, V. Blum, <i>Phys. Rev. Mater. </i>7, 084601 (2023).<br/>4. Y. Xie, J. Morgenstein, B. Bobay, R. Song, N. Caturello, P. Sercel, V. Blum, D. B. Mitzi, <i>J. Am. Chem. Soc. </i>145, 17831 (2023).<br/>5. E. J. Crace, A. Singh, S. Haley, B. Claes, D. B. Mitzi, <i>Inorg. Chem.</i> 62, 16161 (2023).<br/>6. A. Singh, Y. Kim, R. Henry, H. Ade, D. B. Mitzi, <i>J. Am. Chem. Soc.</i> 145 18623 (2023).