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Krueger TD, Giesbers G, Van Court RC, Zhu L, Kim R, Beaudry CM, Robinson SC, Ostroverkhova O, Fang C. Ultrafast Dynamics and Photoresponse of a Fungi-Derived Pigment Xylindein from Solution to Thin Films. Chemistry 2021; 27:5627-5631. [PMID: 33543812 DOI: 10.1021/acs.jpcc.0c09627] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Revised: 02/05/2021] [Indexed: 05/22/2023]
Abstract
Organic semiconductor materials have recently gained momentum due to their non-toxicity, low cost, and sustainability. Xylindein is a remarkably photostable pigment secreted by fungi that grow on decaying wood, and its relatively strong electronic performance is enabled by π-π stacking and hydrogen-bonding network that promote charge transport. Herein, femtosecond transient absorption spectroscopy with a near-IR probe was used to unveil a rapid excited-state intramolecular proton transfer reaction. Conformational motions potentially lead to a conical intersection that quenches fluorescence in the monomeric state. In concentrated solutions, nascent aggregates exhibit a faster excited state lifetime due to excimer formation, confirmed by the excimer→charge-transfer excited-state absorption band of the xylindein thin film, thus limiting its optoelectronic performance. Therefore, extending the xylindein sidechains with branched alkyl groups may hinder the excimer formation and improve optoelectronic properties of naturally derived materials.
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Affiliation(s)
- Taylor D Krueger
- Department of Chemistry, Oregon State University, 153 Gilbert Hall, Corvallis, OR, 97331-4003, USA
| | - Gregory Giesbers
- Department of Physics, Oregon State University, 301 Weniger Hall, Corvallis, OR, 97331-6507, USA
| | - Ray C Van Court
- Department of Wood Science and Engineering, Oregon State University, 119 Richardson Hall, Corvallis, OR, 97331-5704, USA
| | - Liangdong Zhu
- Department of Chemistry, Oregon State University, 153 Gilbert Hall, Corvallis, OR, 97331-4003, USA
| | - Ryan Kim
- Department of Chemistry, Oregon State University, 153 Gilbert Hall, Corvallis, OR, 97331-4003, USA
| | - Christopher M Beaudry
- Department of Chemistry, Oregon State University, 153 Gilbert Hall, Corvallis, OR, 97331-4003, USA
| | - Seri C Robinson
- Department of Wood Science and Engineering, Oregon State University, 119 Richardson Hall, Corvallis, OR, 97331-5704, USA
| | - Oksana Ostroverkhova
- Department of Physics, Oregon State University, 301 Weniger Hall, Corvallis, OR, 97331-6507, USA
| | - Chong Fang
- Department of Chemistry, Oregon State University, 153 Gilbert Hall, Corvallis, OR, 97331-4003, USA
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Abstract
Organic (opto)electronic materials have received considerable attention due to their applications in thin-film-transistors, light-emitting diodes, solar cells, sensors, photorefractive devices, and many others. The technological promises include low cost of these materials and the possibility of their room-temperature deposition from solution on large-area and/or flexible substrates. The article reviews the current understanding of the physical mechanisms that determine the (opto)electronic properties of high-performance organic materials. The focus of the review is on photoinduced processes and on electronic properties important for optoelectronic applications relying on charge carrier photogeneration. Additionally, it highlights the capabilities of various experimental techniques for characterization of these materials, summarizes top-of-the-line device performance, and outlines recent trends in the further development of the field. The properties of materials based both on small molecules and on conjugated polymers are considered, and their applications in organic solar cells, photodetectors, and photorefractive devices are discussed.
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Affiliation(s)
- Oksana Ostroverkhova
- Department of Physics, Oregon State University , Corvallis, Oregon 97331, United States
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Bazaka K, Jacob MV, Ostrikov KK. Sustainable Life Cycles of Natural-Precursor-Derived Nanocarbons. Chem Rev 2015; 116:163-214. [PMID: 26717047 DOI: 10.1021/acs.chemrev.5b00566] [Citation(s) in RCA: 144] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Sustainable societal and economic development relies on novel nanotechnologies that offer maximum efficiency at minimal environmental cost. Yet, it is very challenging to apply green chemistry approaches across the entire life cycle of nanotech products, from design and nanomaterial synthesis to utilization and disposal. Recently, novel, efficient methods based on nonequilibrium reactive plasma chemistries that minimize the process steps and dramatically reduce the use of expensive and hazardous reagents have been applied to low-cost natural and waste sources to produce value-added nanomaterials with a wide range of applications. This review discusses the distinctive effects of nonequilibrium reactive chemistries and how these effects can aid and advance the integration of sustainable chemistry into each stage of nanotech product life. Examples of the use of enabling plasma-based technologies in sustainable production and degradation of nanotech products are discussed-from selection of precursors derived from natural resources and their conversion into functional building units, to methods for green synthesis of useful naturally degradable carbon-based nanomaterials, to device operation and eventual disintegration into naturally degradable yet potentially reusable byproducts.
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Affiliation(s)
- Kateryna Bazaka
- Institute for Future Environments, School of Chemistry, Physics and Mechanical Engineering, Queensland University of Technology , Brisbane, Queensland 4000, Australia.,Electronics Materials Lab, College of Science, Technology and Engineering, James Cook University , Townsville, Queensland 4811, Australia.,CSIRO-QUT Joint Sustainable Materials and Devices Laboratory, Commonwealth Scientific and Industrial Research Organization , P.O. Box 218, Lindfield, New South Wales 2070, Australia
| | - Mohan V Jacob
- Electronics Materials Lab, College of Science, Technology and Engineering, James Cook University , Townsville, Queensland 4811, Australia
| | - Kostya Ken Ostrikov
- Institute for Future Environments, School of Chemistry, Physics and Mechanical Engineering, Queensland University of Technology , Brisbane, Queensland 4000, Australia.,CSIRO-QUT Joint Sustainable Materials and Devices Laboratory, Commonwealth Scientific and Industrial Research Organization , P.O. Box 218, Lindfield, New South Wales 2070, Australia.,School of Physics, The University of Sydney , Sydney, New South Wales 2006, Australia
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