| 학회 | 한국재료학회 |
| 학술대회 | 2013년 가을 (11/06 ~ 11/08, 제주롯데호텔) |
| 권호 | 19권 2호 |
| 발표분야 | B. 나노 재료(Nano Materials) |
| 제목 | Local Probe Technique for Nanoscale Energy Conversion Processes |
| 초록 | The scanning photocurrent/voltage imaging technique provides spatially and spectrally resolved local information of light-matter interaction at the various nanostructures. In this talk, we discuss the recent research efforts of our laboratory to investigate photon energy conversion/transport processes in several individual nanostructures without ensemble average, including semiconductor nanowire photodetectors/optical modulators, single-domain ferroelectric photovoltaic switches and monolayer-chalcogenide thermoelectric cells, where the unique size effects in the each responsible physical process at the nanometer scales commonly manifest themselves. Therein, the defining characteristic of such energy conversion and transport are visualized as direct evidence in a spatially and spectrally resolved manner. We argue that our experimental technique hold general implication for the design rules of the nanoscale energy conversion vehicles. References [1] "Diameter-dependent internal gain in intrinsic Ge nanowires", Nano Letters 10, 1025 (2010). [2] "On-nanowire band-graded Si:Ge photodetectors", Advanced Materials 23, 1025 (2011) [3] "Large electroabsorption susceptability mediated by internal photoconductive gain in Ge nanowires", Nano Letters 12, 5913 (2011). [4] "Spatially resolved photodetection in leaky ferroelectric BiFeO3", Advanced Materials 24, OP49 (2012). [5] "Single ferroelectric-domain photovoltaic switching based on lateral BiFeO3 cells", NPG Asia Materials, 5, e38 (2013) [6] "Monolayer Chalcogenides Photothermoelectrics", Submitted (2013) |
| 저자 | Moon-Ho Jo |
| 소속 | Center for Artificial Low Dimensional Electronic Systems |
| 키워드 | Nano Optoelectronics |
