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CMOS-Compatible Generation of Self-Organized 3-D Ge Quantum Dot Array for Photonic and Thermoelectric Applications

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11 Author(s)
Ching-Chi Wang ; Dept. of Electr. Eng., Nat. Central Univ., Taoyuan, Taiwan ; Kuan-Hung Chen ; Inn-Hao Chen ; Wei-Ting Lai
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We demonstrate a CMOS-compatible scheme, selective oxidation of SiGe pillars, for creating well-organized 3-D Ge quantum dot (QD) array by guiding QDs migration along the oxidation path and thus placing them on targeted locations where the ultimate oxidation occurs. Stacked QDs exhibit tunable luminescence over the visible and possess low thermal conductivity, showing promise for nanophotonic and energy conversion devices.

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Nanotechnology, IEEE Transactions on  (Volume:11 ,  Issue: 4 )