Electrical Characterization of Gold-DNA-Gold Structures in Presence of an External Magnetic Field by Means of I-V Curve Analysis
This work presents an experimental study of gold-DNA-gold structures in the presence and absence of external magnetic fields with strengths less than 1,200.00 mT. The DNA strands, extracted by standard method were used to fabricate a Metal-DNA-Metal (MDM) structure. Its electric behavior when subjec...
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| Format: | Article |
| Language: | English |
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MDPI AG
2012-03-01
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| Series: | Sensors |
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| Online Access: | http://www.mdpi.com/1424-8220/12/3/3578/ |
| _version_ | 1811303776102907904 |
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| author | Wan Haliza Abd Majid Richard Ritikos Nadia Mahmoudi Khatir Vengadesh Periasamy Seyedeh Maryam Banihashemian Saadah Abdul Rahman |
| author_facet | Wan Haliza Abd Majid Richard Ritikos Nadia Mahmoudi Khatir Vengadesh Periasamy Seyedeh Maryam Banihashemian Saadah Abdul Rahman |
| author_sort | Wan Haliza Abd Majid |
| collection | DOAJ |
| description | This work presents an experimental study of gold-DNA-gold structures in the presence and absence of external magnetic fields with strengths less than 1,200.00 mT. The DNA strands, extracted by standard method were used to fabricate a Metal-DNA-Metal (MDM) structure. Its electric behavior when subjected to a magnetic field was studied through its current-voltage (I-V) curve. Acquisition of the I-V curve demonstrated that DNA as a semiconductor exhibits diode behavior in the MDM structure. The current versus magnetic field strength followed a decreasing trend because of a diminished mobility in the presence of a low magnetic field. This made clear that an externally imposed magnetic field would boost resistance of the MDM structure up to 1,000.00 mT and for higher magnetic field strengths we can observe an increase in potential barrier in MDM junction. The magnetic sensitivity indicates the promise of using MDM structures as potential magnetic sensors. |
| first_indexed | 2024-04-13T07:54:03Z |
| format | Article |
| id | doaj.art-d5f5feefec4f499db9dba747be6035b1 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-04-13T07:54:03Z |
| publishDate | 2012-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-d5f5feefec4f499db9dba747be6035b12022-12-22T02:55:28ZengMDPI AGSensors1424-82202012-03-011233578358610.3390/s120303578Electrical Characterization of Gold-DNA-Gold Structures in Presence of an External Magnetic Field by Means of I-V Curve AnalysisWan Haliza Abd MajidRichard RitikosNadia Mahmoudi KhatirVengadesh PeriasamySeyedeh Maryam BanihashemianSaadah Abdul RahmanThis work presents an experimental study of gold-DNA-gold structures in the presence and absence of external magnetic fields with strengths less than 1,200.00 mT. The DNA strands, extracted by standard method were used to fabricate a Metal-DNA-Metal (MDM) structure. Its electric behavior when subjected to a magnetic field was studied through its current-voltage (I-V) curve. Acquisition of the I-V curve demonstrated that DNA as a semiconductor exhibits diode behavior in the MDM structure. The current versus magnetic field strength followed a decreasing trend because of a diminished mobility in the presence of a low magnetic field. This made clear that an externally imposed magnetic field would boost resistance of the MDM structure up to 1,000.00 mT and for higher magnetic field strengths we can observe an increase in potential barrier in MDM junction. The magnetic sensitivity indicates the promise of using MDM structures as potential magnetic sensors.http://www.mdpi.com/1424-8220/12/3/3578/Metal-DNA-Metal (MDM)magnetic fieldmagnetic sensorSchottky diode |
| spellingShingle | Wan Haliza Abd Majid Richard Ritikos Nadia Mahmoudi Khatir Vengadesh Periasamy Seyedeh Maryam Banihashemian Saadah Abdul Rahman Electrical Characterization of Gold-DNA-Gold Structures in Presence of an External Magnetic Field by Means of I-V Curve Analysis Sensors Metal-DNA-Metal (MDM) magnetic field magnetic sensor Schottky diode |
| title | Electrical Characterization of Gold-DNA-Gold Structures in Presence of an External Magnetic Field by Means of I-V Curve Analysis |
| title_full | Electrical Characterization of Gold-DNA-Gold Structures in Presence of an External Magnetic Field by Means of I-V Curve Analysis |
| title_fullStr | Electrical Characterization of Gold-DNA-Gold Structures in Presence of an External Magnetic Field by Means of I-V Curve Analysis |
| title_full_unstemmed | Electrical Characterization of Gold-DNA-Gold Structures in Presence of an External Magnetic Field by Means of I-V Curve Analysis |
| title_short | Electrical Characterization of Gold-DNA-Gold Structures in Presence of an External Magnetic Field by Means of I-V Curve Analysis |
| title_sort | electrical characterization of gold dna gold structures in presence of an external magnetic field by means of i v curve analysis |
| topic | Metal-DNA-Metal (MDM) magnetic field magnetic sensor Schottky diode |
| url | http://www.mdpi.com/1424-8220/12/3/3578/ |
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