Zobrazeno 1 - 10
of 74
pro vyhledávání: '"Lee, Hyeongwoo"'
Autor:
Koo, Yeonjeong, Lee, Hyeongwoo, Ivanova, Tatiana, Kefayati, Ali, Perebeinos, Vasili, Khestanova, Ekaterina, Kravtsov, Vasily, Park, Kyoung-Duck
Emerging photo-induced excitonic processes in transition metal dichalcogenide (TMD) heterobilayers, e.g., coupling, dephasing, and energy transfer of intra- and inter-layer excitons, allow new opportunities for ultrathin photonic devices. Yet, with t
Externí odkaz:
http://arxiv.org/abs/2203.02136
Freeze-frame approach for robust single-molecule tip-enhnaced Raman spectroscopy at room temperature
Autor:
Kang, Mingu, Kim, Hyunwoo, Oleiki, Elham, Koo, Yeonjeong, Lee, Hyeongwoo, Choi, Jinseong, Eom, Taeyong, Lee, Geunsik, Suh, Yung Doug, Park, Kyoung-Duck
A quantitative single-molecule tip-enhanced Raman spectroscopy (TERS) study at room temperature remained a challenge due to the rapid structural dynamics of molecules exposed to air. Here, we demonstrate the single-molecule level hyperspectral TERS i
Externí odkaz:
http://arxiv.org/abs/2110.12641
Autor:
Lee, Hyeongwoo, Koo, Yeonjeong, Choi, Jinseong, Kumar, Shailabh, Lee, Hyoung-Taek, Ji, Gangseon, Choi, Soo Ho, Kang, Mingu, Kim, Ki Kang, Park, Hyeong-Ryeol, Choo, Hyuck, Park, Kyoung-Duck
Understanding and controlling the nanoscale transport of excitonic quasiparticles in atomically thin 2D semiconductors is crucial to produce highly efficient nano-excitonic devices. Here, we present a nano-gap device to selectively confine excitons o
Externí odkaz:
http://arxiv.org/abs/2109.09713
Autor:
Lee, Hyeongwoo, Woo, Ju Young, Park, Dae Young, Jo, Inho, Park, Jusun, Lee, Yeunhee, Koo, Yeonjeong, Choi, Jinseong, Kim, Hyojung, Kim, Yong-Hyun, Jeong, Mun Seok, Jeong, Sohee, Park, Kyoung-Duck
Strain engineering of perovskite quantum dots (pQDs) enables widely-tunable photonic device applications. However, manipulation at the single-emitter level has never been attempted. Here, we present a tip-induced control approach combined with tip-en
Externí odkaz:
http://arxiv.org/abs/2102.02404
Autor:
Kang, Mingu, Kim, Hyunwoo, Oleiki, Elham, Koo, Yeonjeong, Lee, Hyeongwoo, Joo, Huitae, Choi, Jinseong, Eom, Taeyong, Lee, Geunsik, Suh, Yung Doug, Park, Kyoung-Duck
A quantitative single-molecule tip-enhanced Raman spectroscopy (TERS) study at room temperature remained a challenge due to the rapid structural dynamics of molecules exposed to air. Here, we demonstrate the hyperspectral TERS imaging of single or a
Externí odkaz:
http://arxiv.org/abs/2102.02408
Autor:
Koo, Yeonjeong, Kim, Yongchul, Choi, Soo Ho, Lee, Hyeongwoo, Choi, Jinseong, Lee, Dong Yun, Kang, Mingu, Lee, Hyun Seok, Kim, Ki Kang, Lee, Geunsik, Park, Kyoung-Duck
The tunability of the bandgap, absorption and emission energies, photoluminescence (PL) quantum yield, exciton transport, and energy transfer in transition metal dichalcogenide (TMD) monolayers provides a new class of functions for a wide range of ul
Externí odkaz:
http://arxiv.org/abs/2012.03493
Autor:
Lee, Hyeongwoo, Kim, Inki, Park, Chulho, Kang, Mingu, Mun, Jungho, Kim, Yeseul, Raschke, Markus B., Jeong, Mun Seok, Rho, Junsuk, Park, Kyoung-Duck
In atomically thin semiconductors, localized exciton (X$_L$) coupled to light shows single quantum emitting behaviors through radiative relaxation processes providing a new class of optical sources for potential applications in quantum communication.
Externí odkaz:
http://arxiv.org/abs/2009.06328
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