Additives in halide perovskite for blue light-emitting diodes : passivating agents or crystallization modulators?
Successful adoption of defect management and carrier confinement strategies in Ruddlesden-Popper (RP) perovskites has driven the impressive improvements to performance of perovskite-based light-emitting diodes (PeLEDs) seen to date. Although functional additives have been advantageous in mitigating...
| Main Authors: | , , , , , , , , , |
|---|---|
| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2021
|
| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/153395 |
| _version_ | 1811680154525630464 |
|---|---|
| author | Nur Fadilah Jamaludin Yantara, Natalia Febriansyah, Benny Tay, Yeow Boon Muhammad, Bening Tirta Laxmi, Shoba Lim, Swee Sien Sum, Tze Chien Mhaisalkar, Subodh Mathews, Nripan |
| author2 | School of Materials Science and Engineering |
| author_facet | School of Materials Science and Engineering Nur Fadilah Jamaludin Yantara, Natalia Febriansyah, Benny Tay, Yeow Boon Muhammad, Bening Tirta Laxmi, Shoba Lim, Swee Sien Sum, Tze Chien Mhaisalkar, Subodh Mathews, Nripan |
| author_sort | Nur Fadilah Jamaludin |
| collection | NTU |
| description | Successful adoption of defect management and carrier confinement strategies in Ruddlesden-Popper (RP) perovskites has driven the impressive improvements to performance of perovskite-based light-emitting diodes (PeLEDs) seen to date. Although functional additives have been advantageous in mitigating defects, their influence over crystallization behavior of RP (L2Am-1PbmX3m+1) perovskites has yet to be fully studied. This is especially important for blue-emitting mono-halide RP perovskites, where stringent control over m domain distribution is needed for efficient PeLEDs. Herein, we investigate the effect of tri-phenyl-phosphine-oxide (TPPO) on crystallization behaviour of blue RP (PBA2Csm-1PbmBr3m+1) perovskites. Despite TPPO addition, its absence in the resulting film eliminates its role as a passivating agent. Instead, TPPO acts as crystallization and phase distribution modulator – promoting the formation of a narrow distribution of higher m domains with higher Br content. In doing so, an enhancement of ~35% was noted with champion device yielding efficiency of 3.8% at λ of 483 nm. |
| first_indexed | 2024-10-01T03:20:32Z |
| format | Journal Article |
| id | ntu-10356/153395 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T03:20:32Z |
| publishDate | 2021 |
| record_format | dspace |
| spelling | ntu-10356/1533952021-12-11T20:11:25Z Additives in halide perovskite for blue light-emitting diodes : passivating agents or crystallization modulators? Nur Fadilah Jamaludin Yantara, Natalia Febriansyah, Benny Tay, Yeow Boon Muhammad, Bening Tirta Laxmi, Shoba Lim, Swee Sien Sum, Tze Chien Mhaisalkar, Subodh Mathews, Nripan School of Materials Science and Engineering School of Physical and Mathematical Sciences Energy Research Institute @ NTU (ERI@N) Engineering::Materials::Photonics and optoelectronics materials Engineering::Materials::Functional materials Halide Perovskite Optoelectronic Successful adoption of defect management and carrier confinement strategies in Ruddlesden-Popper (RP) perovskites has driven the impressive improvements to performance of perovskite-based light-emitting diodes (PeLEDs) seen to date. Although functional additives have been advantageous in mitigating defects, their influence over crystallization behavior of RP (L2Am-1PbmX3m+1) perovskites has yet to be fully studied. This is especially important for blue-emitting mono-halide RP perovskites, where stringent control over m domain distribution is needed for efficient PeLEDs. Herein, we investigate the effect of tri-phenyl-phosphine-oxide (TPPO) on crystallization behaviour of blue RP (PBA2Csm-1PbmBr3m+1) perovskites. Despite TPPO addition, its absence in the resulting film eliminates its role as a passivating agent. Instead, TPPO acts as crystallization and phase distribution modulator – promoting the formation of a narrow distribution of higher m domains with higher Br content. In doing so, an enhancement of ~35% was noted with champion device yielding efficiency of 3.8% at λ of 483 nm. Ministry of Education (MOE) National Research Foundation (NRF) Accepted version This research was funded by Ministry of Education, Singapore (MOE2018-T2-2-083) and (MOE2019-T2-2-097). The photophysical measurements are made possible through the support from the Ministry of Education, Singapore under its AcRF Tier 2 grant MOE-T2EP50120-0004, and the National Research Foundation, Singapore under its NRF Investigatorship (NRF-NRFI2018-04). We acknowledge the Facility for Analysis, Characterization, Testing and Simulation, Nanyang Technological University, Singapore, for use of their electron microscopy/X-ray facilities. 2021-12-07T11:25:17Z 2021-12-07T11:25:17Z 2021 Journal Article Nur Fadilah Jamaludin, Yantara, N., Febriansyah, B., Tay, Y. B., Muhammad, B. T., Laxmi, S., Lim, S. S., Sum, T. C., Mhaisalkar, S. & Mathews, N. (2021). Additives in halide perovskite for blue light-emitting diodes : passivating agents or crystallization modulators?. ACS Energy Letters, 6, 4265-4272. https://dx.doi.org/10.1021/acsenergylett.1c02232 2380-8195 https://hdl.handle.net/10356/153395 10.1021/acsenergylett.1c02232 6 4265 4272 en MOE2018-T2-2-083 MOE2019-T2-2-097 MOE-T2EP50120-0004 NRF-NRFI-2018-04 ACS Energy Letters This document is the Accepted Manuscript version of a Published Work that appeared in final form in ACS Energy Letters, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://doi.org/10.1021/acsenergylett.1c02232. application/pdf application/pdf |
| spellingShingle | Engineering::Materials::Photonics and optoelectronics materials Engineering::Materials::Functional materials Halide Perovskite Optoelectronic Nur Fadilah Jamaludin Yantara, Natalia Febriansyah, Benny Tay, Yeow Boon Muhammad, Bening Tirta Laxmi, Shoba Lim, Swee Sien Sum, Tze Chien Mhaisalkar, Subodh Mathews, Nripan Additives in halide perovskite for blue light-emitting diodes : passivating agents or crystallization modulators? |
| title | Additives in halide perovskite for blue light-emitting diodes : passivating agents or crystallization modulators? |
| title_full | Additives in halide perovskite for blue light-emitting diodes : passivating agents or crystallization modulators? |
| title_fullStr | Additives in halide perovskite for blue light-emitting diodes : passivating agents or crystallization modulators? |
| title_full_unstemmed | Additives in halide perovskite for blue light-emitting diodes : passivating agents or crystallization modulators? |
| title_short | Additives in halide perovskite for blue light-emitting diodes : passivating agents or crystallization modulators? |
| title_sort | additives in halide perovskite for blue light emitting diodes passivating agents or crystallization modulators |
| topic | Engineering::Materials::Photonics and optoelectronics materials Engineering::Materials::Functional materials Halide Perovskite Optoelectronic |
| url | https://hdl.handle.net/10356/153395 |
| work_keys_str_mv | AT nurfadilahjamaludin additivesinhalideperovskiteforbluelightemittingdiodespassivatingagentsorcrystallizationmodulators AT yantaranatalia additivesinhalideperovskiteforbluelightemittingdiodespassivatingagentsorcrystallizationmodulators AT febriansyahbenny additivesinhalideperovskiteforbluelightemittingdiodespassivatingagentsorcrystallizationmodulators AT tayyeowboon additivesinhalideperovskiteforbluelightemittingdiodespassivatingagentsorcrystallizationmodulators AT muhammadbeningtirta additivesinhalideperovskiteforbluelightemittingdiodespassivatingagentsorcrystallizationmodulators AT laxmishoba additivesinhalideperovskiteforbluelightemittingdiodespassivatingagentsorcrystallizationmodulators AT limsweesien additivesinhalideperovskiteforbluelightemittingdiodespassivatingagentsorcrystallizationmodulators AT sumtzechien additivesinhalideperovskiteforbluelightemittingdiodespassivatingagentsorcrystallizationmodulators AT mhaisalkarsubodh additivesinhalideperovskiteforbluelightemittingdiodespassivatingagentsorcrystallizationmodulators AT mathewsnripan additivesinhalideperovskiteforbluelightemittingdiodespassivatingagentsorcrystallizationmodulators |