Impact of microstructure on the electron–hole interaction in lead halide perovskites
Despite the remarkable progress in the performance of devices based on the lead halide perovskite semiconductor family, there is still a lack of consensus on their fundamental photophysical properties. Here, using magneto-optical transmission spectroscopy we elucidate the impact of the microstructur...
| Main Authors: | , , , , , , , , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Royal Society of Chemistry (RSC)
2020
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| Online Access: | https://hdl.handle.net/1721.1/124562 |
| _version_ | 1826214244836704256 |
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| author | Mahboubi Soufiani, Arman Yang, Zhuo Young, Trevor Miyata, Atsuhiko Surrente, Alessandro Pascoe, Alexander Galkowski, Krzysztof Abdi-Jalebi, Mojtaba Brenes, Roberto Urban, Joanna Zhang, Nan Bulović, Vladimir Portugall, Oliver Cheng, Yi-Bing Nicholas, Robin J. Ho-Baillie, Anita Green, Martin A. Plochocka, Paulina Stranks, Samuel D. |
| author2 | Massachusetts Institute of Technology. Research Laboratory of Electronics |
| author_facet | Massachusetts Institute of Technology. Research Laboratory of Electronics Mahboubi Soufiani, Arman Yang, Zhuo Young, Trevor Miyata, Atsuhiko Surrente, Alessandro Pascoe, Alexander Galkowski, Krzysztof Abdi-Jalebi, Mojtaba Brenes, Roberto Urban, Joanna Zhang, Nan Bulović, Vladimir Portugall, Oliver Cheng, Yi-Bing Nicholas, Robin J. Ho-Baillie, Anita Green, Martin A. Plochocka, Paulina Stranks, Samuel D. |
| author_sort | Mahboubi Soufiani, Arman |
| collection | MIT |
| description | Despite the remarkable progress in the performance of devices based on the lead halide perovskite semiconductor family, there is still a lack of consensus on their fundamental photophysical properties. Here, using magneto-optical transmission spectroscopy we elucidate the impact of the microstructure on the Coulomb interaction between photo-created electron-hole pairs in methylammonium lead triiodide (MAPbI 3 ) and the triple-cation lead mixed-halide composition, Cs 0.05 (MA 0.17 FA 0.83 ) 0.95 Pb(I 0.83 Br 0.17 ) 3 (Cs: cesium, MA: methylammonium, FA: formamidinium) by investigating thin films with a wide range of grain sizes from tens of nanometers to microns. At low temperatures, in which thermal fluctuations of the interactions are frozen and the rotational disorder of the organic cation is negligible, the exciton binding energy and reduced effective mass of carriers remain effectively unchanged with grain size. We conclude that the microstructure plays a negligible role in the Coulomb interaction of the photo-created electron-hole pairs, in contrast to previous reports. This renewed understanding of the relationship between these fundamental electronic properties and the microstructure is critical for future fundamental studies and improving device design. |
| first_indexed | 2024-09-23T16:02:25Z |
| format | Article |
| id | mit-1721.1/124562 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T16:02:25Z |
| publishDate | 2020 |
| publisher | Royal Society of Chemistry (RSC) |
| record_format | dspace |
| spelling | mit-1721.1/1245622022-09-29T17:49:03Z Impact of microstructure on the electron–hole interaction in lead halide perovskites Mahboubi Soufiani, Arman Yang, Zhuo Young, Trevor Miyata, Atsuhiko Surrente, Alessandro Pascoe, Alexander Galkowski, Krzysztof Abdi-Jalebi, Mojtaba Brenes, Roberto Urban, Joanna Zhang, Nan Bulović, Vladimir Portugall, Oliver Cheng, Yi-Bing Nicholas, Robin J. Ho-Baillie, Anita Green, Martin A. Plochocka, Paulina Stranks, Samuel D. Massachusetts Institute of Technology. Research Laboratory of Electronics Despite the remarkable progress in the performance of devices based on the lead halide perovskite semiconductor family, there is still a lack of consensus on their fundamental photophysical properties. Here, using magneto-optical transmission spectroscopy we elucidate the impact of the microstructure on the Coulomb interaction between photo-created electron-hole pairs in methylammonium lead triiodide (MAPbI 3 ) and the triple-cation lead mixed-halide composition, Cs 0.05 (MA 0.17 FA 0.83 ) 0.95 Pb(I 0.83 Br 0.17 ) 3 (Cs: cesium, MA: methylammonium, FA: formamidinium) by investigating thin films with a wide range of grain sizes from tens of nanometers to microns. At low temperatures, in which thermal fluctuations of the interactions are frozen and the rotational disorder of the organic cation is negligible, the exciton binding energy and reduced effective mass of carriers remain effectively unchanged with grain size. We conclude that the microstructure plays a negligible role in the Coulomb interaction of the photo-created electron-hole pairs, in contrast to previous reports. This renewed understanding of the relationship between these fundamental electronic properties and the microstructure is critical for future fundamental studies and improving device design. Australian Renewable Energy Agency (ARENA) Australian Centre for Advanced Photovoltaics (ACAP) Seventh Framework Programme (FP7/2007-2013) ANR JCJC project milliPICS Region Midi-Pyrenees (Contract MESR 13053031) IDEX program Emergence and Programme des Investissements d’Avenir. LAPHENE project (ANR-11-IDEX-0002-02) 2020-04-13T14:21:02Z 2020-04-13T14:21:02Z 2017-05 2017-03 2019-05-10T17:57:40Z Article http://purl.org/eprint/type/JournalArticle 1754-5692 1754-5706 https://hdl.handle.net/1721.1/124562 Soufiani, Arman Mahboubi et al. "Impact of microstructure on the electron–hole interaction in lead halide perovskites." Energy & Environmental Science 10, 6 (May 2017) : 1358-1366. ©2017 The Royal Society of Chemistry en http://dx.doi.org/10.1039/c7ee00685c Energy & Environmental Science Creative Commons Attribution-Noncommercial-Share Alike http://creativecommons.org/licenses/by-nc-sa/4.0/ application/pdf Royal Society of Chemistry (RSC) Other repository |
| spellingShingle | Mahboubi Soufiani, Arman Yang, Zhuo Young, Trevor Miyata, Atsuhiko Surrente, Alessandro Pascoe, Alexander Galkowski, Krzysztof Abdi-Jalebi, Mojtaba Brenes, Roberto Urban, Joanna Zhang, Nan Bulović, Vladimir Portugall, Oliver Cheng, Yi-Bing Nicholas, Robin J. Ho-Baillie, Anita Green, Martin A. Plochocka, Paulina Stranks, Samuel D. Impact of microstructure on the electron–hole interaction in lead halide perovskites |
| title | Impact of microstructure on the electron–hole interaction in lead halide perovskites |
| title_full | Impact of microstructure on the electron–hole interaction in lead halide perovskites |
| title_fullStr | Impact of microstructure on the electron–hole interaction in lead halide perovskites |
| title_full_unstemmed | Impact of microstructure on the electron–hole interaction in lead halide perovskites |
| title_short | Impact of microstructure on the electron–hole interaction in lead halide perovskites |
| title_sort | impact of microstructure on the electron hole interaction in lead halide perovskites |
| url | https://hdl.handle.net/1721.1/124562 |
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