Electronic transport properties of spin-crossover polymer plus polyaniline composites with Fe3O4 nanoparticles
Adding Fe _3 O _4 nanoparticles to composites of [Fe(Htrz) _2 (trz)](BF _4 ) spin-crossover polymer and polyaniline (PANI) drives a phase separation of both and restores the molecular structure and cooperative effects of the spin-crossover polymer without compromising the increased conductivity gain...
| Main Authors: | , , , , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
IOP Publishing
2024-01-01
|
| Series: | JPhys Materials |
| Subjects: | |
| Online Access: | https://doi.org/10.1088/2515-7639/ad1b35 |
| _version_ | 1797354065819074560 |
|---|---|
| author | Esha Mishra WaiKiat Chin Kayleigh A McElveen Thilini K Ekanayaka M Zaid Zaz Gauthami Viswan Ruthi Zielinski Alpha T N’Diaye David Shapiro Rebecca Y Lai Robert Streubel Peter A Dowben |
| author_facet | Esha Mishra WaiKiat Chin Kayleigh A McElveen Thilini K Ekanayaka M Zaid Zaz Gauthami Viswan Ruthi Zielinski Alpha T N’Diaye David Shapiro Rebecca Y Lai Robert Streubel Peter A Dowben |
| author_sort | Esha Mishra |
| collection | DOAJ |
| description | Adding Fe _3 O _4 nanoparticles to composites of [Fe(Htrz) _2 (trz)](BF _4 ) spin-crossover polymer and polyaniline (PANI) drives a phase separation of both and restores the molecular structure and cooperative effects of the spin-crossover polymer without compromising the increased conductivity gained through the addition of PANI. We observe an increased on-off ratio for the DC conductivity owing to an enlarged off state resistivity and a 20 times larger AC conductivity of the on state compared with DC values. The Fe _3 O _4 nanoparticles, primarily confined to the [Fe(Htrz) _2 (trz)](BF _4 ) phase, are ferromagnetically coupled to the local moment of the spin-crossover molecule suggesting the existence of an exchange interaction between both components. |
| first_indexed | 2024-03-08T13:39:54Z |
| format | Article |
| id | doaj.art-0eefb7f6c4694ab0a9ef19f4b45399c6 |
| institution | Directory Open Access Journal |
| issn | 2515-7639 |
| language | English |
| last_indexed | 2024-03-08T13:39:54Z |
| publishDate | 2024-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | JPhys Materials |
| spelling | doaj.art-0eefb7f6c4694ab0a9ef19f4b45399c62024-01-16T10:39:11ZengIOP PublishingJPhys Materials2515-76392024-01-017101501010.1088/2515-7639/ad1b35Electronic transport properties of spin-crossover polymer plus polyaniline composites with Fe3O4 nanoparticlesEsha Mishra0https://orcid.org/0000-0002-8317-9370WaiKiat Chin1https://orcid.org/0000-0002-1840-0825Kayleigh A McElveen2https://orcid.org/0000-0002-1030-2913Thilini K Ekanayaka3https://orcid.org/0000-0003-3650-0210M Zaid Zaz4https://orcid.org/0000-0001-7849-4715Gauthami Viswan5https://orcid.org/0000-0002-6241-5426Ruthi Zielinski6https://orcid.org/0000-0003-3719-0699Alpha T N’Diaye7https://orcid.org/0000-0001-9429-9776David Shapiro8https://orcid.org/0000-0002-4186-6017Rebecca Y Lai9https://orcid.org/0000-0002-1732-9481Robert Streubel10https://orcid.org/0000-0003-4783-892XPeter A Dowben11https://orcid.org/0000-0002-2198-4710Department of Physics and Astronomy, University of Nebraska-Lincoln , Lincoln, NE 68588, United States of America; Department of Physics, Berry College , Mount Berry, GA 30149, United States of AmericaDepartment of Physics and Astronomy, University of Nebraska-Lincoln , Lincoln, NE 68588, United States of AmericaDepartment of Chemistry, University of Nebraska-Lincoln , Lincoln, NE 68588, United States of AmericaDepartment of Physics and Astronomy, University of Nebraska-Lincoln , Lincoln, NE 68588, United States of AmericaDepartment of Physics and Astronomy, University of Nebraska-Lincoln , Lincoln, NE 68588, United States of AmericaDepartment of Physics and Astronomy, University of Nebraska-Lincoln , Lincoln, NE 68588, United States of AmericaDepartment of Physics and Astronomy, University of Nebraska-Lincoln , Lincoln, NE 68588, United States of AmericaAdvanced Light Source, Lawrence Berkeley National Laboratory , Berkeley, CA 94720, United States of AmericaAdvanced Light Source, Lawrence Berkeley National Laboratory , Berkeley, CA 94720, United States of AmericaDepartment of Chemistry, University of Nebraska-Lincoln , Lincoln, NE 68588, United States of AmericaDepartment of Physics and Astronomy, University of Nebraska-Lincoln , Lincoln, NE 68588, United States of America; Nebraska Center for Materials and Nanoscience, University of Nebraska-Lincoln , Lincoln, NE 68588, United States of AmericaDepartment of Physics and Astronomy, University of Nebraska-Lincoln , Lincoln, NE 68588, United States of AmericaAdding Fe _3 O _4 nanoparticles to composites of [Fe(Htrz) _2 (trz)](BF _4 ) spin-crossover polymer and polyaniline (PANI) drives a phase separation of both and restores the molecular structure and cooperative effects of the spin-crossover polymer without compromising the increased conductivity gained through the addition of PANI. We observe an increased on-off ratio for the DC conductivity owing to an enlarged off state resistivity and a 20 times larger AC conductivity of the on state compared with DC values. The Fe _3 O _4 nanoparticles, primarily confined to the [Fe(Htrz) _2 (trz)](BF _4 ) phase, are ferromagnetically coupled to the local moment of the spin-crossover molecule suggesting the existence of an exchange interaction between both components.https://doi.org/10.1088/2515-7639/ad1b35molecular electronicsspin-crossoverelectric conductivityphase separationmagnetic nanoparticles |
| spellingShingle | Esha Mishra WaiKiat Chin Kayleigh A McElveen Thilini K Ekanayaka M Zaid Zaz Gauthami Viswan Ruthi Zielinski Alpha T N’Diaye David Shapiro Rebecca Y Lai Robert Streubel Peter A Dowben Electronic transport properties of spin-crossover polymer plus polyaniline composites with Fe3O4 nanoparticles JPhys Materials molecular electronics spin-crossover electric conductivity phase separation magnetic nanoparticles |
| title | Electronic transport properties of spin-crossover polymer plus polyaniline composites with Fe3O4 nanoparticles |
| title_full | Electronic transport properties of spin-crossover polymer plus polyaniline composites with Fe3O4 nanoparticles |
| title_fullStr | Electronic transport properties of spin-crossover polymer plus polyaniline composites with Fe3O4 nanoparticles |
| title_full_unstemmed | Electronic transport properties of spin-crossover polymer plus polyaniline composites with Fe3O4 nanoparticles |
| title_short | Electronic transport properties of spin-crossover polymer plus polyaniline composites with Fe3O4 nanoparticles |
| title_sort | electronic transport properties of spin crossover polymer plus polyaniline composites with fe3o4 nanoparticles |
| topic | molecular electronics spin-crossover electric conductivity phase separation magnetic nanoparticles |
| url | https://doi.org/10.1088/2515-7639/ad1b35 |
| work_keys_str_mv | AT eshamishra electronictransportpropertiesofspincrossoverpolymerpluspolyanilinecompositeswithfe3o4nanoparticles AT waikiatchin electronictransportpropertiesofspincrossoverpolymerpluspolyanilinecompositeswithfe3o4nanoparticles AT kayleighamcelveen electronictransportpropertiesofspincrossoverpolymerpluspolyanilinecompositeswithfe3o4nanoparticles AT thilinikekanayaka electronictransportpropertiesofspincrossoverpolymerpluspolyanilinecompositeswithfe3o4nanoparticles AT mzaidzaz electronictransportpropertiesofspincrossoverpolymerpluspolyanilinecompositeswithfe3o4nanoparticles AT gauthamiviswan electronictransportpropertiesofspincrossoverpolymerpluspolyanilinecompositeswithfe3o4nanoparticles AT ruthizielinski electronictransportpropertiesofspincrossoverpolymerpluspolyanilinecompositeswithfe3o4nanoparticles AT alphatndiaye electronictransportpropertiesofspincrossoverpolymerpluspolyanilinecompositeswithfe3o4nanoparticles AT davidshapiro electronictransportpropertiesofspincrossoverpolymerpluspolyanilinecompositeswithfe3o4nanoparticles AT rebeccaylai electronictransportpropertiesofspincrossoverpolymerpluspolyanilinecompositeswithfe3o4nanoparticles AT robertstreubel electronictransportpropertiesofspincrossoverpolymerpluspolyanilinecompositeswithfe3o4nanoparticles AT peteradowben electronictransportpropertiesofspincrossoverpolymerpluspolyanilinecompositeswithfe3o4nanoparticles |