Grain size modulation and interfacial engineering of CH3NH3PbBr3 emitter films through incorporation of tetraethylammonium bromide
Metal halide perovskites have demonstrated breakthrough performances as absorber and emitter materials for photovoltaic and display applications respectively. However, despite the low manufacturing cost associated with solution‐based processing, the propensity for defect formation with this techniqu...
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sg-ntu-dr.10356-1384422021-11-01T03:55:35Z Grain size modulation and interfacial engineering of CH3NH3PbBr3 emitter films through incorporation of tetraethylammonium bromide Nur Fadilah Jamaludin Yantara, Natalia Ng, Yan Fong Li, Mingjie Goh, Teck Wee Thirumal, Krishnamoorthy Sum, Tze Chien Mathews, Nripan Soci, Cesare Mhaisalkar, Subodh School of Materials Science & Engineering School of Physical and Mathematical Sciences Interdisciplinary Graduate School (IGS) Energy Research Institute @ NTU (ERI@N) Engineering::Materials::Energy materials CH3NH3PbBr3 Hybrid Halide Perovskites Metal halide perovskites have demonstrated breakthrough performances as absorber and emitter materials for photovoltaic and display applications respectively. However, despite the low manufacturing cost associated with solution‐based processing, the propensity for defect formation with this technique has led to an increasing need for defect passivation. Here, we present an inexpensive and facile method to remedy surface defects through a postdeposition treatment process using branched alkylammonium cation species. The simultaneous realignment of interfacial energy levels upon incorporation of tetraethylammonium bromide onto the surface of CH3NH3PbBr3 films contributes favorably toward the enhancement in overall light‐emitting diode characteristics, achieving maximum luminance, current efficiency, and external quantum efficiency values of 11 000 cd m−2, 0.68 cd A−1, and 0.16 %, respectively. Accepted version 2020-05-06T04:23:23Z 2020-05-06T04:23:23Z 2018 Journal Article Nur Fadilah Jamaludin, Yantara, N., Ng, Y. F., Li, M., Goh, T. W., Thirumal, K., Sum, T. C., Mathews, N., Soci, C. & Mhaisalkar, S. (2018). Grain size modulation and interfacial engineering of CH3NH3PbBr3 emitter films through incorporation of tetraethylammonium bromide. ChemPhysChem, 19(9), 1075-1080. https://dx.doi.org/10.1002/cphc.201701380 1439-4235 https://hdl.handle.net/10356/138442 10.1002/cphc.201701380 29297203 2-s2.0-85042541323 9 19 1075 1080 en ChemPhysChem 10.21979/N9/YSG1OS @ 2018 Wiley‐VCH Verlag GmbH & Co. KGaA, Weinheim. All rights reserved. This paper was published in ChemPhysChem and is made available with permission of Wiley‐VCH Verlag GmbH & Co. KGaA, Weinheim. application/pdf |
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Engineering::Materials::Energy materials CH3NH3PbBr3 Hybrid Halide Perovskites |
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Engineering::Materials::Energy materials CH3NH3PbBr3 Hybrid Halide Perovskites Nur Fadilah Jamaludin Yantara, Natalia Ng, Yan Fong Li, Mingjie Goh, Teck Wee Thirumal, Krishnamoorthy Sum, Tze Chien Mathews, Nripan Soci, Cesare Mhaisalkar, Subodh Grain size modulation and interfacial engineering of CH3NH3PbBr3 emitter films through incorporation of tetraethylammonium bromide |
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Metal halide perovskites have demonstrated breakthrough performances as absorber and emitter materials for photovoltaic and display applications respectively. However, despite the low manufacturing cost associated with solution‐based processing, the propensity for defect formation with this technique has led to an increasing need for defect passivation. Here, we present an inexpensive and facile method to remedy surface defects through a postdeposition treatment process using branched alkylammonium cation species. The simultaneous realignment of interfacial energy levels upon incorporation of tetraethylammonium bromide onto the surface of CH3NH3PbBr3 films contributes favorably toward the enhancement in overall light‐emitting diode characteristics, achieving maximum luminance, current efficiency, and external quantum efficiency values of 11 000 cd m−2, 0.68 cd A−1, and 0.16 %, respectively. |
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School of Materials Science & Engineering |
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School of Materials Science & Engineering Nur Fadilah Jamaludin Yantara, Natalia Ng, Yan Fong Li, Mingjie Goh, Teck Wee Thirumal, Krishnamoorthy Sum, Tze Chien Mathews, Nripan Soci, Cesare Mhaisalkar, Subodh |
format |
Article |
author |
Nur Fadilah Jamaludin Yantara, Natalia Ng, Yan Fong Li, Mingjie Goh, Teck Wee Thirumal, Krishnamoorthy Sum, Tze Chien Mathews, Nripan Soci, Cesare Mhaisalkar, Subodh |
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Nur Fadilah Jamaludin |
title |
Grain size modulation and interfacial engineering of CH3NH3PbBr3 emitter films through incorporation of tetraethylammonium bromide |
title_short |
Grain size modulation and interfacial engineering of CH3NH3PbBr3 emitter films through incorporation of tetraethylammonium bromide |
title_full |
Grain size modulation and interfacial engineering of CH3NH3PbBr3 emitter films through incorporation of tetraethylammonium bromide |
title_fullStr |
Grain size modulation and interfacial engineering of CH3NH3PbBr3 emitter films through incorporation of tetraethylammonium bromide |
title_full_unstemmed |
Grain size modulation and interfacial engineering of CH3NH3PbBr3 emitter films through incorporation of tetraethylammonium bromide |
title_sort |
grain size modulation and interfacial engineering of ch3nh3pbbr3 emitter films through incorporation of tetraethylammonium bromide |
publishDate |
2020 |
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https://hdl.handle.net/10356/138442 |
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1718368060049457152 |