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Aqueous synthesis of Mn-doped CuInSe2 quantum dots to enhance the performance of quantum dot sensitized solar cells

Autor: Mulu Alemayehu Abate, Khalilalrahman Dehvari, Keiko Waki, Jia-Yaw Chang

Publikováno v: Dalton Transactions. 48:16115-16122

Herein, we present the direct aqueous synthesis of manganese (Mn) doped CuInSe2 (Mn-CISe) quantum dots (QDs) under microwave irradiation to improve the photochemical properties of solar cells. As a result of Mn doping, the narrower bandgap energy of

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::485932dba7c058314dfec7669055ae7a
https://doi.org/10.1039/c9dt03163d

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Boron and Nitrogen Co-doped Graphene Used As Counter Electrode for Iodine Reduction in Dye-Sensitized Solar Cells

Autor: Jyh-Chiang Jiang, Keiko Waki, Kuan-Yu Lin, Minh Tho Nguyen

Publikováno v: The Journal of Physical Chemistry C. 122:26385-26392

A counter electrode (CE), which acts as an efficient catalyst, plays a pivotal role in dye-sensitized solar cells (DSSCs). Graphene doped by heteroatoms has been regarded as a material having a high reduction catalytic activity to develop efficient P

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::fed27b81dadca02489e982e2c1efc1fa
https://doi.org/10.1021/acs.jpcc.8b06956

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Electrochemical analysis of dye sensitized solar cell employing indoline-based and ruthenium-based dye combined with volatile and low-volatility solution-based electrolyte

Autor: Runbang Tao, Keiko Waki, Gerald Ensang Timuda

Publikováno v: Journal of Materials Science: Materials in Electronics. 29:19245-19255

In this study, the photovoltaic performances of dye-sensitized solar cells (DSSCs) have been studied for four different configurations involving two dyes (indoline-based, D205 dye, and ruthenium-based, N719 dye, respectively) and two types of electro

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::03871ad47554510ae88dc2acf2628231
https://doi.org/10.1007/s10854-018-0051-8

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Understanding the redox reactions of adjacent carboxyl groups and anhydride groups following citric acid treatment of defect-containing multiwalled carbon nanotubes

Autor: Kouya Eguchi, Fumitaka Kobayashi, Jiuting Chen, Keiko Waki

Publikováno v: Electrochemistry Communications, Vol 91, Iss, Pp 25-30 (2018)

Although carbon materials have been widely used in battery applications, the origin of the redox reaction appearing in the important potential region is not well understood. Moreover, typical functionalization treatments that use diluted strong acids

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bcf1b110cc54b6affb7a8924e50452f0
http://t2r2.star.titech.ac.jp/cgi-bin/publicationinfo.cgi?q_publication_content_number=CTT100780106

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An activity recoverable carbon nanotube based electrocatalysts: Rapid annealing effects and importance of defects

Autor: Jiuting Chen, Ti Chen, Keiko Waki

Publikováno v: Carbon. 129:119-127

We investigated a rapid thermal annealing process for the preparation of carbon nanotube based electrocatalysts. The non-nitrogen doped defective carbon catalysts generated using the rapid thermal annealing (RTA) process performed for 32 s until 900

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9021cfc89fe0ef971cffebbbef6149f0
https://doi.org/10.1016/j.carbon.2017.12.010

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Critically Examining the Role of Nanocatalysts in Li–O2 Batteries: Viability toward Suppression of Recharge Overpotential, Rechargeability, and Cyclability

Autor: Chunzhen Yang, Minho O, Hye Ryung Byon, Keiko Waki, Morgan L. Thomas, Keisuke Yamanaka, Toshiaki Ohta, Raymond A. Wong, Arghya Dutta, Misun Hong

Publikováno v: ACS Energy Letters. 3:592-597

In lithium–oxygen (Li–O2) batteries, nanocatalysts have been widely employed as a means to suppress the large recharge overpotential and to possibly improve cyclability. However, these studies have consistently been mired with ambiguity relating

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::cf94989aa92586185385c6462562ac9d
https://doi.org/10.1021/acsenergylett.8b00054

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Aqueous solution-processed off-stoichiometric Cu–In–S QDs and their application in quantum dot-sensitized solar cells

Autor: Yu-Hsuan Chen, Ya-Han Chiang, Jia-Yaw Chang, Keiko Waki, Jyh-Chiang Jiang, Mulu Alemayehu Abate, Kuan-Yu Lin

Publikováno v: Journal of Materials Chemistry A. 6:9629-9641

Aqueous solution-processed methods offer several advantages such as simplicity, low-cost, environmental friendliness, and easy scale up. Herein, we present an ultrafast and convenient aqueous route to prepare off-stoichiometric Cu–In–S quantum do

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::33927983e12c9f71eca39876101164bd
https://doi.org/10.1039/c8ta01064a

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