Zobrazeno 1 - 10
of 356
pro vyhledávání: '"Tadaaki NAGAO"'
Autor:
Barun Kumar Barman, Hiroyuki Yamada, Keisuke Watanabe, Kenzo Deguchi, Shinobu Ohki, Kenjiro Hashi, Atsushi Goto, Tadaaki Nagao
Publikováno v:
Advanced Science, Vol 11, Iss 30, Pp n/a-n/a (2024)
Abstract Colloidal carbon dots (CDs) have garnered much attention as metal‐free photoluminescent nanomaterials, yet creation of solid‐state fluorescent (SSF) materials emitting in the deep red (DR) to near‐infrared (NIR) range poses a significa
Externí odkaz:
https://doaj.org/article/912bc8e60cca44b5bd7cbaad498a057a
Autor:
Yu‐Sheng Chen, Zih‐Ying Yang, Ming‐Jyun Ye, Wen‐Hsiang Wu, Lu‐Hsing Chen, Hung‐Jung Shen, Satoshi Ishii, Tadaaki Nagao, Kuo‐Ping Chen
Publikováno v:
Advanced Physics Research, Vol 2, Iss 8, Pp n/a-n/a (2023)
Abstract Tamm plasmon polariton (TPP) resonance can be excited within the stopband of a distributed Bragg reflector (DBR) by combining a thin metal film. When exposured to hydrogen gas, the TPP resonance feature is redshifted for the TPPs structure w
Externí odkaz:
https://doaj.org/article/207c3e57ce75481fbe30851f0701feac
Autor:
Soungmin Bae, Kana Matsumoto, Hannes Raebiger, Ken-ichi Shudo, Yong-Hoon Kim, Ørjan Sele Handegård, Tadaaki Nagao, Masahiro Kitajima, Yuji Sakai, Xiang Zhang, Robert Vajtai, Pulickel Ajayan, Junichiro Kono, Jun Takeda, Ikufumi Katayama
Publikováno v:
Nature Communications, Vol 13, Iss 1, Pp 1-8 (2022)
Valley depolarization processes in 2D transition metal dichalcogenides have been linked to acoustic phonons, but optical verification is ambiguous, due to the nearly degenerate acoustic phonon frequencies at the zone-edge. Here, the authors determine
Externí odkaz:
https://doaj.org/article/98eab289bc1a44a8889598af8b353a6e
Publikováno v:
Advanced Materials Interfaces, Vol 10, Iss 1, Pp n/a-n/a (2023)
Abstract A plasmonic nanostructure forming a metal‐semiconductor interface generates electric potential by optical illumination. Grounded plasmonic nanostructures can also generate electric potentials based on the recently demonstrated plasmoelectr
Externí odkaz:
https://doaj.org/article/74d53896edae4fb6b12d16845e5ac8cf
Publikováno v:
Science and Technology of Advanced Materials, Vol 22, Iss 1, Pp 441-448 (2021)
For any thermoelectric effects to be achieved, a thermoelectric material must have hot and cold sides. Typically, the hot side can be easily obtained by excess heat. However, the passive cooling method is often limited to convective heat transfer to
Externí odkaz:
https://doaj.org/article/7f34bbfcb7af4581ba2f91f3c70696d3
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-10 (2021)
Abstract Traditional hydropower generation is one of the most sustainable energy sources; however, the local environmental impact of hydroelectric dams and reservoirs is serious, and hydroelectric power requires high-cost turbines and generators. Bec
Externí odkaz:
https://doaj.org/article/e0f7a7d3ff954903826a4d22f549387c
Autor:
Min-Wen Yu, Satoshi Ishii, Shisheng Li, Ji-Ren Ku, Jhen-Hong Yang, Kuan-Lin Su, Takaaki Taniguchi, Tadaaki Nagao, Kuo-Ping Chen
Publikováno v:
npj 2D Materials and Applications, Vol 5, Iss 1, Pp 1-7 (2021)
Abstract Exciton–polariton coupling between transition metal dichalcogenide (TMD) monolayer and plasmonic nanostructures generates additional states that are rich in physics, gaining significant attention in recent years. In exciton–polariton cou
Externí odkaz:
https://doaj.org/article/21d1b1030fc04b7d965605da2c14ae8b
Autor:
Atsushi Sakurai, Kyohei Yada, Tetsushi Simomura, Shenghong Ju, Makoto Kashiwagi, Hideyuki Okada, Tadaaki Nagao, Koji Tsuda, Junichiro Shiomi
Publikováno v:
ACS Central Science, Vol 5, Iss 2, Pp 319-326 (2019)
Externí odkaz:
https://doaj.org/article/7166218951fb45d0ac7a9f4a1eec12ca
Autor:
Thang Duy Dao, Satoshi Ishii, Anh Tung Doan, Yoshiki Wada, Akihiko Ohi, Toshihide Nabatame, Tadaaki Nagao
Publikováno v:
Advanced Science, Vol 6, Iss 20, Pp n/a-n/a (2019)
Abstract Merging photonic structures and optoelectronic sensors into a single chip may yield a sensor‐on‐chip spectroscopic device that can measure the spectrum of matter. In this work, an on‐chip concurrent multiwavelength infrared (IR) sensor
Externí odkaz:
https://doaj.org/article/243bd1f6c3d0465fbf59d7ad428144c6
Autor:
Ahmed A. M. El-Amir, Takeo Ohsawa, Satoshi Ishii, Masataka Imura, Hiroyo Segawa, Isao Sakaguchi, Tadaaki Nagao, Kiyoshi Shimamura, Naoki Ohashi
Publikováno v:
AIP Advances, Vol 9, Iss 5, Pp 055024-055024-5 (2019)
For the full benefit of the silicon chip industry and to further shift the photoresponse cut-off wavelength of the silicon photodetectors, high-performance Ag-doped Si p-n photodiodes with an extended infrared photoresponsivity are constructed on the
Externí odkaz:
https://doaj.org/article/cf5338b197704ca690a70e311de0b79a