Zobrazeno 1 - 10
of 22
pro vyhledávání: '"Keiichi OHARA"'
Publikováno v:
Journal of the Meteorological Society of Japan. Ser. II.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3090f30685c6780d6e8857b2cc09b972
https://doi.org/10.2151/jmsj.2023-018
https://doi.org/10.2151/jmsj.2023-018
Autor:
Ru-Shi Liu, Zhen Bao, Kashyap Dave, Yoshihiko Kanemitsu, Satoshi Nakahara, Keiichi Ohara, Hirokazu Tahara, Sojiro Masada
Publikováno v:
Nanoscale. 12:3820-3826
Surface defects and synthesis methods play important roles in the photoluminescence quantum yield (PLQY), stability, and the device performance of lead halide perovskite quantum dots (PQDs). In this study, we report a quadruple-ligand (tri-n-octylpho
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::86754648c3bed2accf0be87be1bfc717
https://doi.org/10.1039/c9nr09056h
https://doi.org/10.1039/c9nr09056h
Autor:
Keiichi Ohara, Satoshi Nakahara, Hirokazu Tahara, Go Yumoto, Masaki Saruyama, Ryota Sato, Tokuhisa Kawawaki, Toshiharu Teranishi, Yoshihiko Kanemitsu
Publikováno v:
The Journal of Physical Chemistry Letters. 10:4731-4736
Ionization of nanocrystals (NCs) causes both photoluminescence intermittency and a reduction in luminescence quantum efficiency and thus plays a critical role in the optoelectronic performance of NC-based devices. Here, we study the ionization and ne
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::13b08a3a15899758f51e22fccb8ac2fc
https://doi.org/10.1021/acs.jpclett.9b01554
https://doi.org/10.1021/acs.jpclett.9b01554
Autor:
Tomoko Aharen, Keiichi Ohara, Yoshihiko Kanemitsu, Hirokazu Tahara, Hidekatsu Suzuura, Hideki Hirori, Takumi Yamada
Publikováno v:
Physical Review B. 103
Metal halide perovskites have emerged as versatile photonic device materials because of their outstanding optical properties. Here, we report the two-photon absorption (TPA) spectra for $\mathrm{C}{\mathrm{H}}_{3}\mathrm{N}{\mathrm{H}}_{3}\mathrm{Pb}
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f0eb398a15cb369666c974297464576a
https://doi.org/10.1103/physrevb.103.l041201
https://doi.org/10.1103/physrevb.103.l041201
Autor:
Kashyap, Dave, Zhen, Bao, Satoshi, Nakahara, Keiichi, Ohara, Sojiro, Masada, Hirokazu, Tahara, Yoshihiko, Kanemitsu, Ru-Shi, Liu
Publikováno v:
Nanoscale. 12(6)
Surface defects and synthesis methods play important roles in the photoluminescence quantum yield (PLQY), stability, and the device performance of lead halide perovskite quantum dots (PQDs). In this study, we report a quadruple-ligand (tri-n-octylpho
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::77c9cfdcdeb4b4b4501888a4b411737c
https://pubmed.ncbi.nlm.nih.gov/31995086
https://pubmed.ncbi.nlm.nih.gov/31995086
Autor:
Hideki Hirori, Yoshihiko Kanemitsu, Tomoko Aharen, Hirokazu Tahara, Keiichi Ohara, Hidekatsu Suzuura, Takumi Yamada
Publikováno v:
Physical Review Materials. 3
Metal halide perovskites have emerged as versatile photonic device materials because of their outstanding band structure and excellent optical properties. Here, we determined the excitation wavelength dependences of the two-photon absorption coeffici
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e33bb1a1ebcdc8224862fc1051b15f3f
https://doi.org/10.1103/physrevmaterials.3.111601
https://doi.org/10.1103/physrevmaterials.3.111601
Autor:
Satoshi, Nakahara, Keiichi, Ohara, Hirokazu, Tahara, Go, Yumoto, Tokuhisa, Kawawaki, Masaki, Saruyama, Ryota, Sato, Toshiharu, Teranishi, Yoshihiko, Kanemitsu
Publikováno v:
The journal of physical chemistry letters. 10(16)
Ionization of nanocrystals (NCs) causes both photoluminescence intermittency and a reduction in luminescence quantum efficiency and thus plays a critical role in the optoelectronic performance of NC-based devices. Here, we study the ionization and ne
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::20f2d10c76f210b25afb4b808502d3a4
https://pubmed.ncbi.nlm.nih.gov/31362511
https://pubmed.ncbi.nlm.nih.gov/31362511
Publikováno v:
Polymer Degradation and Stability. 109:385-392
Biobased content of plastic products and related materials were determined according to ISO 16620 series. Biobased carbon content of sample was determined from percent modern carbon (pMC). pMC was determined by carbon-14 (14C) concentration measured
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4301edf38b443d8a44a15340139a52b8
https://doi.org/10.1016/j.polymdegradstab.2014.05.018
https://doi.org/10.1016/j.polymdegradstab.2014.05.018
Publikováno v:
Polymer Degradation and Stability. 95:1276-1283
The biomass carbon ratios of various polymer composites were studied. The biomass carbon ratios of polymer composites were estimated by the ratios of 14C to 12C measured by accelerator mass spectrometry (AMS) based on ASTM D 6866-08. The pretreatment
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::474abf0b9e9a545fa7ffcb2898e19b04
https://doi.org/10.1016/j.polymdegradstab.2010.03.011
https://doi.org/10.1016/j.polymdegradstab.2010.03.011
Publikováno v:
Bulletin of the Chemical Society of Japan. 82:1538-1547
The biomass carbon ratios of various chemical products were studied. The biomass carbon ratios of chemicals such as polymers, their monomers, starches, cellulose, calcium carbonate, charcoal, ethan...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2f11b823bc39d8bd019d9bd000dd7856
https://doi.org/10.1246/bcsj.82.1538
https://doi.org/10.1246/bcsj.82.1538