Versatile aza-BODIPY-based low-bandgap conjugated small molecule for light harvesting and near-infrared photodetection
The versatile nature of organic conjugated materials renders their flawless integration into a diverse family of optoelectronic devices with light-harvesting, photodetection, or light-emitting capabilities. Classes of materials that offer the possibilities of two or more distinct optoelectronic func...
| Main Authors: | , , , , , , , , , , , , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2023
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/164224 |
| _version_ | 1811682888854274048 |
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| author | Bhat, Gurudutt Kielar, Marcin Rao, Haixia Gholami, Mahnaz D. Mathers, Isabel Larin, Astrid C. R. Flanagan, Thomas Erdenebileg, Enkhtur Bruno, Annalisa Pannu, Amandeep Singh Fairfull-Smith, Kathryn E. Izake, Emad L. Sah, Pankaj Lam, Yeng Ming Pandey, Ajay K. Sonar, Prashant |
| author2 | School of Materials Science and Engineering |
| author_facet | School of Materials Science and Engineering Bhat, Gurudutt Kielar, Marcin Rao, Haixia Gholami, Mahnaz D. Mathers, Isabel Larin, Astrid C. R. Flanagan, Thomas Erdenebileg, Enkhtur Bruno, Annalisa Pannu, Amandeep Singh Fairfull-Smith, Kathryn E. Izake, Emad L. Sah, Pankaj Lam, Yeng Ming Pandey, Ajay K. Sonar, Prashant |
| author_sort | Bhat, Gurudutt |
| collection | NTU |
| description | The versatile nature of organic conjugated materials renders their flawless integration into a diverse family of optoelectronic devices with light-harvesting, photodetection, or light-emitting capabilities. Classes of materials that offer the possibilities of two or more distinct optoelectronic functions are particularly attractive as they enable smart applications while providing the benefits of the ease of fabrication using low-cost processes. Here, we develop a novel, multi-purpose conjugated small molecule by combining boron-azadipyrromethene (aza-BODIPY) as electron acceptor with triphenylamine (TPA) as end-capping donor units. The implemented donor–acceptor–donor (D–A–D) configuration, in the form of TPA-azaBODIPY-TPA, preserves ideal charge transfer characteristics with appropriate excitation energy levels, with the additional ability to be used as either a charge transporting interlayer or light-sensing semiconducting layer in optoelectronic devices. To demonstrate its versatility, we first show that TPA-azaBODIPY-TPA can act as an excellent hole transport layer in methylammonium lead triiodide (MAPbI3)-based perovskite solar cells with measured power conversion efficiencies exceeding 17%, outperforming control solar cells with PEDOT:PSS by nearly 60%. Furthermore, the optical bandgap of 1.49 eV is shown to provide significant photodetection in the wavelength range of up to 800 nm where TPA-azaBODIPY-TPA functions as donor in near-infrared organic photodetectors (OPDs) composed of fullerene derivatives. Overall, the established versatility of TPA-azaBODIPY-TPA, combined with its robust thermal stability as well as excellent solubility and processability, provides a new guide for developing highly efficient multi-purpose electronic materials for the next-generation of smart optoelectronic devices. |
| first_indexed | 2024-10-01T04:04:00Z |
| format | Journal Article |
| id | ntu-10356/164224 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T04:04:00Z |
| publishDate | 2023 |
| record_format | dspace |
| spelling | ntu-10356/1642242023-09-29T06:21:27Z Versatile aza-BODIPY-based low-bandgap conjugated small molecule for light harvesting and near-infrared photodetection Bhat, Gurudutt Kielar, Marcin Rao, Haixia Gholami, Mahnaz D. Mathers, Isabel Larin, Astrid C. R. Flanagan, Thomas Erdenebileg, Enkhtur Bruno, Annalisa Pannu, Amandeep Singh Fairfull-Smith, Kathryn E. Izake, Emad L. Sah, Pankaj Lam, Yeng Ming Pandey, Ajay K. Sonar, Prashant School of Materials Science and Engineering Energy Research Institute @ NTU (ERI@N) Engineering::Materials Multifunctionality Organic Photodetector The versatile nature of organic conjugated materials renders their flawless integration into a diverse family of optoelectronic devices with light-harvesting, photodetection, or light-emitting capabilities. Classes of materials that offer the possibilities of two or more distinct optoelectronic functions are particularly attractive as they enable smart applications while providing the benefits of the ease of fabrication using low-cost processes. Here, we develop a novel, multi-purpose conjugated small molecule by combining boron-azadipyrromethene (aza-BODIPY) as electron acceptor with triphenylamine (TPA) as end-capping donor units. The implemented donor–acceptor–donor (D–A–D) configuration, in the form of TPA-azaBODIPY-TPA, preserves ideal charge transfer characteristics with appropriate excitation energy levels, with the additional ability to be used as either a charge transporting interlayer or light-sensing semiconducting layer in optoelectronic devices. To demonstrate its versatility, we first show that TPA-azaBODIPY-TPA can act as an excellent hole transport layer in methylammonium lead triiodide (MAPbI3)-based perovskite solar cells with measured power conversion efficiencies exceeding 17%, outperforming control solar cells with PEDOT:PSS by nearly 60%. Furthermore, the optical bandgap of 1.49 eV is shown to provide significant photodetection in the wavelength range of up to 800 nm where TPA-azaBODIPY-TPA functions as donor in near-infrared organic photodetectors (OPDs) composed of fullerene derivatives. Overall, the established versatility of TPA-azaBODIPY-TPA, combined with its robust thermal stability as well as excellent solubility and processability, provides a new guide for developing highly efficient multi-purpose electronic materials for the next-generation of smart optoelectronic devices. Ministry of Education (MOE) National Research Foundation (NRF) Published version Lam Yeng Ming would like to thank the support of the Singapore Ministry of Education Academic Research Fund Tier 2 (Grant No. MOE2019-T2-1-085). Annalisa Bruno and Enkhtur thank the National Research Foundation for the financial support (Grant No. S18-1176-SCRP). Prashant Sonar is thankful to QUT for the financial support from the Australian Research Council (ARC) for the Future Fellowship (Grant No. FT130101337) and QUT core funding (Grant No. QUT/322120-0301/07). Ajay K. Pandey acknowledges support from Australia India Strategic Research Fund (Project AISRF53820). 2023-01-10T05:05:16Z 2023-01-10T05:05:16Z 2022 Journal Article Bhat, G., Kielar, M., Rao, H., Gholami, M. D., Mathers, I., Larin, A. C. R., Flanagan, T., Erdenebileg, E., Bruno, A., Pannu, A. S., Fairfull-Smith, K. E., Izake, E. L., Sah, P., Lam, Y. M., Pandey, A. K. & Sonar, P. (2022). Versatile aza-BODIPY-based low-bandgap conjugated small molecule for light harvesting and near-infrared photodetection. InfoMat, 4(12). https://dx.doi.org/10.1002/inf2.12345 2567-3165 https://hdl.handle.net/10356/164224 10.1002/inf2.12345 2-s2.0-85133499853 12 4 en MOE2019-T2-1-085 S18-1176- SCRP InfoMat 10.21979/N9/HK6JJQ © 2022 The Authors. InfoMat published by UESTC and John Wiley & Sons Australia, Ltd. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited application/pdf |
| spellingShingle | Engineering::Materials Multifunctionality Organic Photodetector Bhat, Gurudutt Kielar, Marcin Rao, Haixia Gholami, Mahnaz D. Mathers, Isabel Larin, Astrid C. R. Flanagan, Thomas Erdenebileg, Enkhtur Bruno, Annalisa Pannu, Amandeep Singh Fairfull-Smith, Kathryn E. Izake, Emad L. Sah, Pankaj Lam, Yeng Ming Pandey, Ajay K. Sonar, Prashant Versatile aza-BODIPY-based low-bandgap conjugated small molecule for light harvesting and near-infrared photodetection |
| title | Versatile aza-BODIPY-based low-bandgap conjugated small molecule for light harvesting and near-infrared photodetection |
| title_full | Versatile aza-BODIPY-based low-bandgap conjugated small molecule for light harvesting and near-infrared photodetection |
| title_fullStr | Versatile aza-BODIPY-based low-bandgap conjugated small molecule for light harvesting and near-infrared photodetection |
| title_full_unstemmed | Versatile aza-BODIPY-based low-bandgap conjugated small molecule for light harvesting and near-infrared photodetection |
| title_short | Versatile aza-BODIPY-based low-bandgap conjugated small molecule for light harvesting and near-infrared photodetection |
| title_sort | versatile aza bodipy based low bandgap conjugated small molecule for light harvesting and near infrared photodetection |
| topic | Engineering::Materials Multifunctionality Organic Photodetector |
| url | https://hdl.handle.net/10356/164224 |
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