Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Keita Kamiyama"'
Publikováno v:
Materials Research Express, Vol 9, Iss 4, p 049501 (2022)
Externí odkaz:
https://doaj.org/article/b03f844ebbde4e85822dd0a88d6e85fb
Publikováno v:
Materials Research Express, Vol 9, Iss 2, p 025005 (2022)
The photovoltaic properties of quantum dot (QD) sensitized solar cells (QDSCs) depend significantly on the surface modification applied to the QDs and on the nanostructured interface between the QDs and the electrode surface. In the development of QD
Externí odkaz:
https://doaj.org/article/67500052d40648bcb90a06c0ca461fda
Autor:
Hisayoshi Kobayashi, Motoki Hironaka, Keita Kamiyama, Shuzi Hayase, Qing Shen, Taro Toyoda, Yasushi Hirose
Publikováno v:
The Journal of Physical Chemistry C. 122:29200-29209
In this study, we focus on the effect of the crystal orientation of TiO2 on the optical absorption and ground-state energy levels in systems comprising CdSe quantum dots (QDs) adsorbed on the (001)...
Publikováno v:
The Journal of Physical Chemistry C. 122:13590-13599
It is important to investigate the dependencies of the optical absorption and the ground state energy level on the size of the semiconductor quantum dots (QDs) on fully studied single crystal TiO2 surfaces. The present study focuses on the systems co
Publikováno v:
The Journal of Physical Chemistry C. 121:25390-25401
Quantum dots (QDs) provide an attractive alternative sensitizer to organic dyes. However, there have been few reports on QD-sensitized solar cells (QDSCs) that have photovoltaic conversion efficiencies exceeding those of dye-sensitized solar cells. T
Publikováno v:
The Journal of Physical Chemistry C. 120:16367-16376
We describe the morphology and consider the optical absorption and the ground state energy level of CdSe quantum dots (QDs) on single crystal ZnO substrates with various crystal orientations. The morphologies and crystal growth of CdSe QDs were analy
Autor:
Shuzi Hayase, Taro Toyoda, Masaya Akimoto, Keita Kamiyama, Qing Shen, Witoon Yindeesuk, Tsuyoshi Okuno
Publikováno v:
RSC Advances. 5(61):49623-49632
We present a comparison between the electronic structures of inverse opal (IO) and nanoparticulate (NP)-TiO2 electrodes. The electronic structure details were obtained from optical absorption, fluorescence, and valence band studies in order to clarif
Publikováno v:
The Journal of Physical Chemistry C. 118:16680-16687
We describe the adsorption and growth of CdSe quantum dots (QDs) on single crystals of rutile TiO2 with different crystal orientations. We used atomic force microscopy (AFM) to characterize the morphology of the QDs and photoacoustic (PA) spectroscop