Energetic disorder dominates optical properties and recombination dynamics in tin-lead perovskite nanocrystals
Tin-lead alloyed perovskite nanocrystals (PNCs) offer a promising pathway toward low-toxicity and air-stable light-emitting devices. However, substantial energetic disorder has thus far hindered their lighting applications compared to pure lead-based PNCs. A fundamental understanding of this disorde...
Saved in:
| Main Authors: | , , , , , , , , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
KeAi Communications Co. Ltd.
2025-01-01
|
| Series: | eScience |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2667141724000636 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1841560512476741632 |
|---|---|
| author | Dandan Wang Yusheng Li Yongge Yang Chao Ding Yuyao Wei Dong Liu Hua Li Huan Bi Shikai Chen Sujun Ji Boyu Zhang Yao Guo Huiyun Wei Hongshi Li Shuzi Hayase Qing Shen |
| author_facet | Dandan Wang Yusheng Li Yongge Yang Chao Ding Yuyao Wei Dong Liu Hua Li Huan Bi Shikai Chen Sujun Ji Boyu Zhang Yao Guo Huiyun Wei Hongshi Li Shuzi Hayase Qing Shen |
| author_sort | Dandan Wang |
| collection | DOAJ |
| description | Tin-lead alloyed perovskite nanocrystals (PNCs) offer a promising pathway toward low-toxicity and air-stable light-emitting devices. However, substantial energetic disorder has thus far hindered their lighting applications compared to pure lead-based PNCs. A fundamental understanding of this disorder and its impact on optical properties is crucial for overcoming this limitation. Here, using temperature-dependent static and transient absorption spectroscopy, we meticulously distinguish the contributions of static disorder (including defects, impurities, etc.) and dynamic disorder (carrier–phonon interactions). We reveal how these disorders shape band-tail structure and ultimately influence inter-band carrier recombination behaviors. Surprisingly, we find that static and dynamic disorder primarily control band-tail defect states and bandgap renormalization, respectively, which together modulate fast carrier trapping and slow band-band recombination rates. Furthermore, we link these disorders to the tin-induced symmetry-lowering distortions in tin-lead alloyed PNCs. These findings illuminate critical design principles for highly luminescent, low-toxicity tin-lead PNCs, accelerating their adoption in optoelectronic applications. |
| format | Article |
| id | doaj-art-c6fe8fe9e5d2448f8abc269ab8370f05 |
| institution | Kabale University |
| issn | 2667-1417 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | KeAi Communications Co. Ltd. |
| record_format | Article |
| series | eScience |
| spelling | doaj-art-c6fe8fe9e5d2448f8abc269ab8370f052025-01-04T04:57:21ZengKeAi Communications Co. Ltd.eScience2667-14172025-01-0151100279Energetic disorder dominates optical properties and recombination dynamics in tin-lead perovskite nanocrystalsDandan Wang0Yusheng Li1Yongge Yang2Chao Ding3Yuyao Wei4Dong Liu5Hua Li6Huan Bi7Shikai Chen8Sujun Ji9Boyu Zhang10Yao Guo11Huiyun Wei12Hongshi Li13Shuzi Hayase14Qing Shen15Faculty of Informatics and Engineering, The University of Electro-Communications, 1-5-1 Chofugaoka, Chofu, Tokyo 182-8585, JapanFaculty of Informatics and Engineering, The University of Electro-Communications, 1-5-1 Chofugaoka, Chofu, Tokyo 182-8585, Japan; Corresponding authors.Faculty of Informatics and Engineering, The University of Electro-Communications, 1-5-1 Chofugaoka, Chofu, Tokyo 182-8585, JapanFaculty of Informatics and Engineering, The University of Electro-Communications, 1-5-1 Chofugaoka, Chofu, Tokyo 182-8585, JapanFaculty of Informatics and Engineering, The University of Electro-Communications, 1-5-1 Chofugaoka, Chofu, Tokyo 182-8585, JapanFaculty of Informatics and Engineering, The University of Electro-Communications, 1-5-1 Chofugaoka, Chofu, Tokyo 182-8585, JapanFaculty of Informatics and Engineering, The University of Electro-Communications, 1-5-1 Chofugaoka, Chofu, Tokyo 182-8585, JapanFaculty of Informatics and Engineering, The University of Electro-Communications, 1-5-1 Chofugaoka, Chofu, Tokyo 182-8585, JapanFaculty of Informatics and Engineering, The University of Electro-Communications, 1-5-1 Chofugaoka, Chofu, Tokyo 182-8585, JapanFaculty of Informatics and Engineering, The University of Electro-Communications, 1-5-1 Chofugaoka, Chofu, Tokyo 182-8585, JapanFaculty of Informatics and Engineering, The University of Electro-Communications, 1-5-1 Chofugaoka, Chofu, Tokyo 182-8585, JapanSchool of Materials Science and Engineering, Henan Joint International Research Laboratory of Nanocomposite Sensing Materials, Anyang Institute of Technology, Anyang 455000, ChinaSchool of Mathematics and Physics, University of Science and Technology Beijing, Beijing 100083, ChinaInstitute of New Energy Materials Chemistry, School of Materials Science and Engineering, Nankai University, Tianjin 300350, Chinai-Powered Energy System Research Center (i-PERC), The University of Electro-Communications, 1-5-1 Chofugaoka, Chofu, Tokyo 182-8585, JapanFaculty of Informatics and Engineering, The University of Electro-Communications, 1-5-1 Chofugaoka, Chofu, Tokyo 182-8585, Japan; Corresponding authors.Tin-lead alloyed perovskite nanocrystals (PNCs) offer a promising pathway toward low-toxicity and air-stable light-emitting devices. However, substantial energetic disorder has thus far hindered their lighting applications compared to pure lead-based PNCs. A fundamental understanding of this disorder and its impact on optical properties is crucial for overcoming this limitation. Here, using temperature-dependent static and transient absorption spectroscopy, we meticulously distinguish the contributions of static disorder (including defects, impurities, etc.) and dynamic disorder (carrier–phonon interactions). We reveal how these disorders shape band-tail structure and ultimately influence inter-band carrier recombination behaviors. Surprisingly, we find that static and dynamic disorder primarily control band-tail defect states and bandgap renormalization, respectively, which together modulate fast carrier trapping and slow band-band recombination rates. Furthermore, we link these disorders to the tin-induced symmetry-lowering distortions in tin-lead alloyed PNCs. These findings illuminate critical design principles for highly luminescent, low-toxicity tin-lead PNCs, accelerating their adoption in optoelectronic applications.http://www.sciencedirect.com/science/article/pii/S2667141724000636Tin-lead alloyedPerovskite nanocrystalsEnergetic disorderBand-tail structureCarrier recombination |
| spellingShingle | Dandan Wang Yusheng Li Yongge Yang Chao Ding Yuyao Wei Dong Liu Hua Li Huan Bi Shikai Chen Sujun Ji Boyu Zhang Yao Guo Huiyun Wei Hongshi Li Shuzi Hayase Qing Shen Energetic disorder dominates optical properties and recombination dynamics in tin-lead perovskite nanocrystals eScience Tin-lead alloyed Perovskite nanocrystals Energetic disorder Band-tail structure Carrier recombination |
| title | Energetic disorder dominates optical properties and recombination dynamics in tin-lead perovskite nanocrystals |
| title_full | Energetic disorder dominates optical properties and recombination dynamics in tin-lead perovskite nanocrystals |
| title_fullStr | Energetic disorder dominates optical properties and recombination dynamics in tin-lead perovskite nanocrystals |
| title_full_unstemmed | Energetic disorder dominates optical properties and recombination dynamics in tin-lead perovskite nanocrystals |
| title_short | Energetic disorder dominates optical properties and recombination dynamics in tin-lead perovskite nanocrystals |
| title_sort | energetic disorder dominates optical properties and recombination dynamics in tin lead perovskite nanocrystals |
| topic | Tin-lead alloyed Perovskite nanocrystals Energetic disorder Band-tail structure Carrier recombination |
| url | http://www.sciencedirect.com/science/article/pii/S2667141724000636 |
| work_keys_str_mv | AT dandanwang energeticdisorderdominatesopticalpropertiesandrecombinationdynamicsintinleadperovskitenanocrystals AT yushengli energeticdisorderdominatesopticalpropertiesandrecombinationdynamicsintinleadperovskitenanocrystals AT yonggeyang energeticdisorderdominatesopticalpropertiesandrecombinationdynamicsintinleadperovskitenanocrystals AT chaoding energeticdisorderdominatesopticalpropertiesandrecombinationdynamicsintinleadperovskitenanocrystals AT yuyaowei energeticdisorderdominatesopticalpropertiesandrecombinationdynamicsintinleadperovskitenanocrystals AT dongliu energeticdisorderdominatesopticalpropertiesandrecombinationdynamicsintinleadperovskitenanocrystals AT huali energeticdisorderdominatesopticalpropertiesandrecombinationdynamicsintinleadperovskitenanocrystals AT huanbi energeticdisorderdominatesopticalpropertiesandrecombinationdynamicsintinleadperovskitenanocrystals AT shikaichen energeticdisorderdominatesopticalpropertiesandrecombinationdynamicsintinleadperovskitenanocrystals AT sujunji energeticdisorderdominatesopticalpropertiesandrecombinationdynamicsintinleadperovskitenanocrystals AT boyuzhang energeticdisorderdominatesopticalpropertiesandrecombinationdynamicsintinleadperovskitenanocrystals AT yaoguo energeticdisorderdominatesopticalpropertiesandrecombinationdynamicsintinleadperovskitenanocrystals AT huiyunwei energeticdisorderdominatesopticalpropertiesandrecombinationdynamicsintinleadperovskitenanocrystals AT hongshili energeticdisorderdominatesopticalpropertiesandrecombinationdynamicsintinleadperovskitenanocrystals AT shuzihayase energeticdisorderdominatesopticalpropertiesandrecombinationdynamicsintinleadperovskitenanocrystals AT qingshen energeticdisorderdominatesopticalpropertiesandrecombinationdynamicsintinleadperovskitenanocrystals |