| 학회 |
한국공업화학회 |
| 학술대회 |
2015년 봄 (04/29 ~ 05/01, BEXCO (부산)) |
| 권호 |
19권 1호 |
| 발표분야 |
나노_포스터 |
| 제목 |
Graphene-Ru complex photodetectors with ultrahigh photoresponsivity |
| 초록 |
The maximum responsivity of a pure monolayer graphene-based photodetector is less than 10 mAW–1 because of the small optical absorption and short recombination lifetime. Here, we report a graphene hybrid photodetector functionalized with a photoactive ruthenium complex that shows an ultrahigh responsivity and a photoconductive gain under incident optical intensity of the order of milliwatts. This responsivity is two orders of magnitude higher than the precedent best performance of graphene-based photodetectors under a similar incident light intensity. Monolayer graphene-based photodetectors exhibited pronounced n type doping effect due to electron transfer via the metalligand charge transfer (MLCT) from the ruthenium complex to graphene. |
| 저자 |
이은광1, Xien Liu1, Hanum Abdullah2, 오준학2
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| 소속 |
1울산과학기술대, 2포항공과대 |
| 키워드 |
graphene; photoresponse; transistor; Ru compound; metal-ligand charge transfer
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| E-Mail |
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