Sequential Codoping Making Nonconjugated Organic Radicals Conduct Ionically Electronically
Mixed conduction through both ionic and electronic pathways in an organic radical has received enormous attention recently, owing to its high conductivity and exceptional processibility amenable to future organic electronics. While the majority of previous works have centered on polymeric systems, t...
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| Format: | Article |
| Language: | English |
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Wiley-VCH
2022-01-01
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| Series: | Small Science |
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| Online Access: | https://doi.org/10.1002/smsc.202100081 |
| _version_ | 1819364553162489856 |
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| author | Yerin Jo Ilhwan Yu Jaehyoung Ko Ji Eon Kwon Yongho Joo |
| author_facet | Yerin Jo Ilhwan Yu Jaehyoung Ko Ji Eon Kwon Yongho Joo |
| author_sort | Yerin Jo |
| collection | DOAJ |
| description | Mixed conduction through both ionic and electronic pathways in an organic radical has received enormous attention recently, owing to its high conductivity and exceptional processibility amenable to future organic electronics. While the majority of previous works have centered on polymeric systems, the study on the mixed conduction in a small molecular radical has gained less attention despite its enormous potential. Herein, a study on the mixed conduction behavior of such system, 4‐substituted 2,2,6,6‐tetramethylpiperidyl‐1‐oxy (4‐hydroxy TEMPO, HT), via sequential codoping with an ionic dopant, lithium bis(trifluoromethanesulfonyl)imide salt (LiTFSI, LT), and an electronic dopant, 2,3,5,6‐tetrafluoro‐7,7,8,8‐tetracyanoquinodimethane (F4TCNQ, FT), is presented. It is found that the coupling between the components plays an important role in determining the total conductivity, in which a maximum conductivity of ≈10−4 S cm−1 was obtained for a HT/LT/FT mixture. A systematic study to connect the physical changes associated with doping and the observed mixed conductivity is provided. It is believed that these findings establish a starting point to study mixed conduction behaviors in small molecular organic radical systems in general, ultimately targeting next‐generation organic electronic devices and batteries. |
| first_indexed | 2024-12-24T23:00:46Z |
| format | Article |
| id | doaj.art-f4183c006ae441a284b13452584eed4b |
| institution | Directory Open Access Journal |
| issn | 2688-4046 |
| language | English |
| last_indexed | 2024-12-24T23:00:46Z |
| publishDate | 2022-01-01 |
| publisher | Wiley-VCH |
| record_format | Article |
| series | Small Science |
| spelling | doaj.art-f4183c006ae441a284b13452584eed4b2022-12-21T16:35:08ZengWiley-VCHSmall Science2688-40462022-01-0121n/an/a10.1002/smsc.202100081Sequential Codoping Making Nonconjugated Organic Radicals Conduct Ionically ElectronicallyYerin Jo0Ilhwan Yu1Jaehyoung Ko2Ji Eon Kwon3Yongho Joo4Institute of Advanced Composite Materials Korea Institute of Science and Technology (KIST) 92 Chudong-ro Bongdong-eup Wanju-gun Jeonbuk 55324 Republic of KoreaInstitute of Advanced Composite Materials Korea Institute of Science and Technology (KIST) 92 Chudong-ro Bongdong-eup Wanju-gun Jeonbuk 55324 Republic of KoreaInstitute of Advanced Composite Materials Korea Institute of Science and Technology (KIST) 92 Chudong-ro Bongdong-eup Wanju-gun Jeonbuk 55324 Republic of KoreaInstitute of Advanced Composite Materials Korea Institute of Science and Technology (KIST) 92 Chudong-ro Bongdong-eup Wanju-gun Jeonbuk 55324 Republic of KoreaInstitute of Advanced Composite Materials Korea Institute of Science and Technology (KIST) 92 Chudong-ro Bongdong-eup Wanju-gun Jeonbuk 55324 Republic of KoreaMixed conduction through both ionic and electronic pathways in an organic radical has received enormous attention recently, owing to its high conductivity and exceptional processibility amenable to future organic electronics. While the majority of previous works have centered on polymeric systems, the study on the mixed conduction in a small molecular radical has gained less attention despite its enormous potential. Herein, a study on the mixed conduction behavior of such system, 4‐substituted 2,2,6,6‐tetramethylpiperidyl‐1‐oxy (4‐hydroxy TEMPO, HT), via sequential codoping with an ionic dopant, lithium bis(trifluoromethanesulfonyl)imide salt (LiTFSI, LT), and an electronic dopant, 2,3,5,6‐tetrafluoro‐7,7,8,8‐tetracyanoquinodimethane (F4TCNQ, FT), is presented. It is found that the coupling between the components plays an important role in determining the total conductivity, in which a maximum conductivity of ≈10−4 S cm−1 was obtained for a HT/LT/FT mixture. A systematic study to connect the physical changes associated with doping and the observed mixed conductivity is provided. It is believed that these findings establish a starting point to study mixed conduction behaviors in small molecular organic radical systems in general, ultimately targeting next‐generation organic electronic devices and batteries.https://doi.org/10.1002/smsc.202100081codopingmixed ionic–electronic conductororganic radical molecules |
| spellingShingle | Yerin Jo Ilhwan Yu Jaehyoung Ko Ji Eon Kwon Yongho Joo Sequential Codoping Making Nonconjugated Organic Radicals Conduct Ionically Electronically Small Science codoping mixed ionic–electronic conductor organic radical molecules |
| title | Sequential Codoping Making Nonconjugated Organic Radicals Conduct Ionically Electronically |
| title_full | Sequential Codoping Making Nonconjugated Organic Radicals Conduct Ionically Electronically |
| title_fullStr | Sequential Codoping Making Nonconjugated Organic Radicals Conduct Ionically Electronically |
| title_full_unstemmed | Sequential Codoping Making Nonconjugated Organic Radicals Conduct Ionically Electronically |
| title_short | Sequential Codoping Making Nonconjugated Organic Radicals Conduct Ionically Electronically |
| title_sort | sequential codoping making nonconjugated organic radicals conduct ionically electronically |
| topic | codoping mixed ionic–electronic conductor organic radical molecules |
| url | https://doi.org/10.1002/smsc.202100081 |
| work_keys_str_mv | AT yerinjo sequentialcodopingmakingnonconjugatedorganicradicalsconductionicallyelectronically AT ilhwanyu sequentialcodopingmakingnonconjugatedorganicradicalsconductionicallyelectronically AT jaehyoungko sequentialcodopingmakingnonconjugatedorganicradicalsconductionicallyelectronically AT jieonkwon sequentialcodopingmakingnonconjugatedorganicradicalsconductionicallyelectronically AT yonghojoo sequentialcodopingmakingnonconjugatedorganicradicalsconductionicallyelectronically |