Observation of negative differential resistance in mesoscopic graphene oxide devices
Abstract The fractions of various functional groups in graphene oxide (GO) are directly related to its electrical and chemical properties and can be controlled by various reduction methods like thermal, chemical and optical. However, a method with sufficient controllability to regulate the reduction...
Guardado en:
| Autores principales: | , , , , , , , , , , , |
|---|---|
| Formato: | article |
| Lenguaje: | EN |
| Publicado: |
Nature Portfolio
2018
|
| Materias: | |
| Acceso en línea: | https://doaj.org/article/ac3dd9eeb9ad4739af5613b7ba08577d |
| Etiquetas: |
Agregar Etiqueta
Sin Etiquetas, Sea el primero en etiquetar este registro!
|
| id |
oai:doaj.org-article:ac3dd9eeb9ad4739af5613b7ba08577d |
|---|---|
| record_format |
dspace |
| spelling |
oai:doaj.org-article:ac3dd9eeb9ad4739af5613b7ba08577d2021-12-02T16:08:03ZObservation of negative differential resistance in mesoscopic graphene oxide devices10.1038/s41598-018-22355-02045-2322https://doaj.org/article/ac3dd9eeb9ad4739af5613b7ba08577d2018-05-01T00:00:00Zhttps://doi.org/10.1038/s41598-018-22355-0https://doaj.org/toc/2045-2322Abstract The fractions of various functional groups in graphene oxide (GO) are directly related to its electrical and chemical properties and can be controlled by various reduction methods like thermal, chemical and optical. However, a method with sufficient controllability to regulate the reduction process has been missing. In this work, a hybrid method of thermal and joule heating processes is demonstrated where a progressive control of the ratio of various functional groups can be achieved in a localized area. With this precise control of carbon-oxygen ratio, negative differential resistance (NDR) is observed in the current-voltage characteristics of a two-terminal device in the ambient environment due to charge-activated electrochemical reactions at the GO surface. This experimental observation correlates with the optical and chemical characterizations. This NDR behavior offers new opportunities for the fabrication and application of such novel electronic devices in a wide range of devices applications including switches and oscillators.Servin RathiInyeal LeeMoonshik KangDongsuk LimYoontae LeeSerhan YamacliHan-Ik JohSeongsu KimSang-Woo KimSun Jin YunSukwon ChoiGil-Ho KimNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 8, Iss 1, Pp 1-9 (2018) |
| institution |
DOAJ |
| collection |
DOAJ |
| language |
EN |
| topic |
Medicine R Science Q |
| spellingShingle |
Medicine R Science Q Servin Rathi Inyeal Lee Moonshik Kang Dongsuk Lim Yoontae Lee Serhan Yamacli Han-Ik Joh Seongsu Kim Sang-Woo Kim Sun Jin Yun Sukwon Choi Gil-Ho Kim Observation of negative differential resistance in mesoscopic graphene oxide devices |
| description |
Abstract The fractions of various functional groups in graphene oxide (GO) are directly related to its electrical and chemical properties and can be controlled by various reduction methods like thermal, chemical and optical. However, a method with sufficient controllability to regulate the reduction process has been missing. In this work, a hybrid method of thermal and joule heating processes is demonstrated where a progressive control of the ratio of various functional groups can be achieved in a localized area. With this precise control of carbon-oxygen ratio, negative differential resistance (NDR) is observed in the current-voltage characteristics of a two-terminal device in the ambient environment due to charge-activated electrochemical reactions at the GO surface. This experimental observation correlates with the optical and chemical characterizations. This NDR behavior offers new opportunities for the fabrication and application of such novel electronic devices in a wide range of devices applications including switches and oscillators. |
| format |
article |
| author |
Servin Rathi Inyeal Lee Moonshik Kang Dongsuk Lim Yoontae Lee Serhan Yamacli Han-Ik Joh Seongsu Kim Sang-Woo Kim Sun Jin Yun Sukwon Choi Gil-Ho Kim |
| author_facet |
Servin Rathi Inyeal Lee Moonshik Kang Dongsuk Lim Yoontae Lee Serhan Yamacli Han-Ik Joh Seongsu Kim Sang-Woo Kim Sun Jin Yun Sukwon Choi Gil-Ho Kim |
| author_sort |
Servin Rathi |
| title |
Observation of negative differential resistance in mesoscopic graphene oxide devices |
| title_short |
Observation of negative differential resistance in mesoscopic graphene oxide devices |
| title_full |
Observation of negative differential resistance in mesoscopic graphene oxide devices |
| title_fullStr |
Observation of negative differential resistance in mesoscopic graphene oxide devices |
| title_full_unstemmed |
Observation of negative differential resistance in mesoscopic graphene oxide devices |
| title_sort |
observation of negative differential resistance in mesoscopic graphene oxide devices |
| publisher |
Nature Portfolio |
| publishDate |
2018 |
| url |
https://doaj.org/article/ac3dd9eeb9ad4739af5613b7ba08577d |
| work_keys_str_mv |
AT servinrathi observationofnegativedifferentialresistanceinmesoscopicgrapheneoxidedevices AT inyeallee observationofnegativedifferentialresistanceinmesoscopicgrapheneoxidedevices AT moonshikkang observationofnegativedifferentialresistanceinmesoscopicgrapheneoxidedevices AT dongsuklim observationofnegativedifferentialresistanceinmesoscopicgrapheneoxidedevices AT yoontaelee observationofnegativedifferentialresistanceinmesoscopicgrapheneoxidedevices AT serhanyamacli observationofnegativedifferentialresistanceinmesoscopicgrapheneoxidedevices AT hanikjoh observationofnegativedifferentialresistanceinmesoscopicgrapheneoxidedevices AT seongsukim observationofnegativedifferentialresistanceinmesoscopicgrapheneoxidedevices AT sangwookim observationofnegativedifferentialresistanceinmesoscopicgrapheneoxidedevices AT sunjinyun observationofnegativedifferentialresistanceinmesoscopicgrapheneoxidedevices AT sukwonchoi observationofnegativedifferentialresistanceinmesoscopicgrapheneoxidedevices AT gilhokim observationofnegativedifferentialresistanceinmesoscopicgrapheneoxidedevices |
| _version_ |
1718384678268829696 |