| 학회 |
한국고분자학회 |
| 학술대회 |
2012년 봄 (04/12 ~ 04/13, 대전컨벤션센터) |
| 권호 |
37권 1호 |
| 발표분야 |
분자전자 부문위원회 |
| 제목 |
Facile doping method making stable and sustainable p-doped graphene by chloroform solvent |
| 초록 |
As the graphene is becoming more important for the application of flexible electronic device, doping of graphene has attracted great attention of a large number of researchers. Here, we introduce the simple, stable, and sustainable p-doping method of graphene using chloroform (CHCl3) solvent. Through just dipping into chloroform and taking out, graphene can be simply p-doped and the work function of graphene is increased from 4.57 to 4.91eV and sheet resistance is also decreased more than twice. In addition, we prove that the chloroform molecules are infiltrated into the interface between graphene and SiO2 and physically absorbed in the form of cluster. Through adopting Arrhenius equation, we analyze how strongly chloroform molecules are absorbed. The calculated desorption energies show two different value and the reason why two values are observed is interpreted that it depends on the absorption sites (basal plane : 7.31 kJ/mol and wrinkle : 36.03 kJ/mol). |
| 저자 |
김현호, 조새벽, 강보석, 봉효진, 이성규, 이효찬, 조길원
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| 소속 |
포항공과대 |
| 키워드 |
Graphene; Chemical vapor doposition; Molecular charge transfer doping
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| E-Mail |
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