Triplet-Sensitization by Lead Halide Perovskite Thin Films for Near-Infrared-to-Visible Upconversion
Lead halide-based perovskite thin films have attracted great attention due to the rapid increase in perovskite solar cell efficiencies. The same optoelectronic properties that make perovskites ideal absorber materials in solar cells are also beneficial in other light-harvesting applications and make...
| Main Authors: | , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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American Chemical Society (ACS)
2019
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| Online Access: | https://hdl.handle.net/1721.1/123322 |
| _version_ | 1826204015607676928 |
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| author | Nienhaus, Lea Correa-Baena, Juan-Pablo Wieghold, Sarah Einzinger, Markus Lin, Ting-An Shulenberger, Katherine Klein, Nathan Wu, Mengfei Bulovic, Vladimir Buonassisi, Tonio Baldo, Marc A Bawendi, Moungi G |
| author2 | Massachusetts Institute of Technology. Department of Chemistry |
| author_facet | Massachusetts Institute of Technology. Department of Chemistry Nienhaus, Lea Correa-Baena, Juan-Pablo Wieghold, Sarah Einzinger, Markus Lin, Ting-An Shulenberger, Katherine Klein, Nathan Wu, Mengfei Bulovic, Vladimir Buonassisi, Tonio Baldo, Marc A Bawendi, Moungi G |
| author_sort | Nienhaus, Lea |
| collection | MIT |
| description | Lead halide-based perovskite thin films have attracted great attention due to the rapid increase in perovskite solar cell efficiencies. The same optoelectronic properties that make perovskites ideal absorber materials in solar cells are also beneficial in other light-harvesting applications and make them prime candidates as triplet sensitizers in upconversion via triplet-triplet annihilation in rubrene. In this contribution, we take advantage of long carrier lifetimes and carrier diffusion lengths in perovskite thin films, their high absorption cross-sections throughout the visible spectrum, and the strong spin-orbit coupling owing to the abundance of heavy atoms to sensitize the upconverter rubrene. Employing bulk perovskite thin films as the absorber layer and spin-mixer in inorganic/organic heterojunction upconversion devices allows us to forego the passivating ligands required for colloidal sensitizers, which can hinder exciton transport through large scale arrays and reduce the triplet transfer efficiency to the annihilator. Our bilayer device exhibits an upconversion efficiency in excess of 3% under 785 nm illumination at an incident power of ∼88 W/cm[superscript 2]. Keywords: lead halide perovskites; upconversion; free carriers; triplet excitons; charge-separated state; triplet-charge annihilation; triplet-triplet annihilation |
| first_indexed | 2024-09-23T12:47:29Z |
| format | Article |
| id | mit-1721.1/123322 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T12:47:29Z |
| publishDate | 2019 |
| publisher | American Chemical Society (ACS) |
| record_format | dspace |
| spelling | mit-1721.1/1233222024-06-25T18:06:56Z Triplet-Sensitization by Lead Halide Perovskite Thin Films for Near-Infrared-to-Visible Upconversion Nienhaus, Lea Correa-Baena, Juan-Pablo Wieghold, Sarah Einzinger, Markus Lin, Ting-An Shulenberger, Katherine Klein, Nathan Wu, Mengfei Bulovic, Vladimir Buonassisi, Tonio Baldo, Marc A Bawendi, Moungi G Massachusetts Institute of Technology. Department of Chemistry Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science Massachusetts Institute of Technology. Department of Mechanical Engineering Lead halide-based perovskite thin films have attracted great attention due to the rapid increase in perovskite solar cell efficiencies. The same optoelectronic properties that make perovskites ideal absorber materials in solar cells are also beneficial in other light-harvesting applications and make them prime candidates as triplet sensitizers in upconversion via triplet-triplet annihilation in rubrene. In this contribution, we take advantage of long carrier lifetimes and carrier diffusion lengths in perovskite thin films, their high absorption cross-sections throughout the visible spectrum, and the strong spin-orbit coupling owing to the abundance of heavy atoms to sensitize the upconverter rubrene. Employing bulk perovskite thin films as the absorber layer and spin-mixer in inorganic/organic heterojunction upconversion devices allows us to forego the passivating ligands required for colloidal sensitizers, which can hinder exciton transport through large scale arrays and reduce the triplet transfer efficiency to the annihilator. Our bilayer device exhibits an upconversion efficiency in excess of 3% under 785 nm illumination at an incident power of ∼88 W/cm[superscript 2]. Keywords: lead halide perovskites; upconversion; free carriers; triplet excitons; charge-separated state; triplet-charge annihilation; triplet-triplet annihilation National Science Foundation (U.S.) (Contract EEC-1041895) National Science Foundation (NSF) (Grant EEC-1041895) National Science Foundation Graduate Research Fellowship (Grant 1122374) US Department of Energy, Office of Basic Energy Sciences, Division of Materials Sciences and Engineering (Award DE-FG02-07ER46454) 2019-12-27T18:04:45Z 2019-12-27T18:04:45Z 2019-03-22 2019-02-05 2019-09-20T11:27:55Z Article http://purl.org/eprint/type/JournalArticle 2380-8195 https://hdl.handle.net/1721.1/123322 Nwinhaus, Lea et al. "Triplet-Sensitization by Lead Halide Perovskite Thin Films for Near-Infrared-to-Visible Upconversion." ACS Energy Letters 4, 4 (March 2019): 888-895 © 2019 American Chemical Society en 10.1021/acsenergylett.9b00283 ACS Energy Letters Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf American Chemical Society (ACS) Other repository |
| spellingShingle | Nienhaus, Lea Correa-Baena, Juan-Pablo Wieghold, Sarah Einzinger, Markus Lin, Ting-An Shulenberger, Katherine Klein, Nathan Wu, Mengfei Bulovic, Vladimir Buonassisi, Tonio Baldo, Marc A Bawendi, Moungi G Triplet-Sensitization by Lead Halide Perovskite Thin Films for Near-Infrared-to-Visible Upconversion |
| title | Triplet-Sensitization by Lead Halide Perovskite Thin Films for Near-Infrared-to-Visible Upconversion |
| title_full | Triplet-Sensitization by Lead Halide Perovskite Thin Films for Near-Infrared-to-Visible Upconversion |
| title_fullStr | Triplet-Sensitization by Lead Halide Perovskite Thin Films for Near-Infrared-to-Visible Upconversion |
| title_full_unstemmed | Triplet-Sensitization by Lead Halide Perovskite Thin Films for Near-Infrared-to-Visible Upconversion |
| title_short | Triplet-Sensitization by Lead Halide Perovskite Thin Films for Near-Infrared-to-Visible Upconversion |
| title_sort | triplet sensitization by lead halide perovskite thin films for near infrared to visible upconversion |
| url | https://hdl.handle.net/1721.1/123322 |
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