Efficient metal-free organic room temperature phosphors
An innovative transformation of organic luminescent materials in recent years has realised the exciting research area of ultralong room-temperature phosphorescence. Here the credit for the advancements goes to the rational design of new organic phosphors. The continuous effort in the area has yielde...
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| Published in | Chemical science (Cambridge) Vol. 12; no. 12; pp. 4216 - 4236 |
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| Main Authors | , , , |
| Format | Journal Article |
| Language | English |
| Published |
Cambridge
Royal Society of Chemistry
01.04.2021
The Royal Society of Chemistry |
| Subjects | |
| Online Access | Get full text |
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| Summary: | An innovative transformation of organic luminescent materials in recent years has realised the exciting research area of ultralong room-temperature phosphorescence. Here the credit for the advancements goes to the rational design of new organic phosphors. The continuous effort in the area has yielded wide varieties of metal-free organic systems capable of extending the lifetime to several seconds under ambient conditions with high quantum yield and attractive afterglow properties. The various strategies adopted in the past decade to manipulate the fate of triplet excitons suggest a bright future for this class of materials. To analyze the underlying processes in detail, we have chosen high performing organic triplet emitters that utilized the best possible ways to achieve a lifetime above one second along with impressive quantum yield and afterglow properties. Such a case study describing different classes of metal-free organic phosphors and strategies adopted for the efficient management of triplet excitons will stimulate the development of better candidates for futuristic applications. This Perspective discusses the phosphorescence features of single- and multi-component crystalline assemblies, host-guest assemblies, polymers, and polymer-based systems under various classes of molecules. The various applications of the organic phosphors, along with future perspectives, are also highlighted.
A summary of the extremely efficient organic phosphors that utilized the best possible ways to manipulate the fate of triplet excitons for achieving a long lifetime along with impressive quantum yield and afterglow properties is provided. |
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| Bibliography: | Aakash D. Nidhankar obtained his M.Sc. (Chemistry) from Yeshwant Mahavidyalaya, SRTM University, Nanded, India in 2015. He is pursuing his Ph.D. in Chemical Science at the National Chemical Laboratory (CSIR-NCL), Pune, India, under the supervision of Dr Santhosh B. Sukumaran. His research interests are mainly focused on functional organic materials with ultralong phosphorescence. p phenylenevinylene) self-assembly from the National Institute for Interdisciplinary Science and Technology (CSIR-NIIST), Trivandrum, India. After several years of postdoctoral studies at the Max Planck Institute of Colloids and Interfaces, Germany, National Institute for Materials Science (NIMS), Japan, and the University of Namur, Belgium, he joined the Organic Chemistry Division of the National Chemical Laboratory (CSIR-NCL) in 2014 as a Senior Scientist. His research interests include self-assembly of luminescent organic materials, phosphorescence, and 2D-polymers for catalytic and energy applications. Dr Goudappagouda obtained his M.Sc. (Chemistry) from Sahyadri Science College, Kuvempu University, Karnataka, India in 2012. Later, he received his Ph.D. in Chemical Science under the guidance of Dr Santhosh Babu Sukumaran from CSIR-National Chemical Laboratory (CSIR-NCL), Pune, India, in 2020. His research work mainly focused on the design and synthesis of donor-acceptor small organic molecules for lighting and light-harvesting applications. Besides, he worked on charge carrier mobility and conductivity of donor-acceptor co-assemblies for electronic applications. Dr Sukumaran Santhosh Babu obtained his Ph.D. on oligo Vivek C. Wakchaure completed his M.Sc. (Organic Chemistry) in 2013 from Savitribai Phule Pune University, Pune, India. In 2015, he started his doctoral study under the supervision of Dr Santhosh Babu Sukumaran at the National Chemical Laboratory (CSIR-NCL) Pune, India. His thesis mainly focuses on strategies to develop processable 2D-polymers using organic solvent-free functional liquids. The thesis describes the synthesis of small organic molecules and two-dimensional polymers for various applications such as sensing, tunable emission, and electrochemical charge storage. ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-3 content type line 23 ObjectType-Review-1 These authors contributed equally to this work. |
| ISSN: | 2041-6520 2041-6539 |
| DOI: | 10.1039/d1sc00446h |