Welcome to DU!
The truly grassroots left-of-center political community where regular people, not algorithms, drive the discussions and set the standards.
Join the community:
Create a free account
Support DU (and get rid of ads!):
Become a Star Member
Latest Breaking News
General Discussion
The DU Lounge
All Forums
Issue Forums
Culture Forums
Alliance Forums
Region Forums
Support Forums
Help & Search
Stable Perovskite Solar Cells Developed through Structural Simplification
http://www.nims.go.jp/eng/news/press/2015/05/201503180.html[font face=Serif][font size=5]Stable Perovskite Solar Cells Developed through Structural Simplification[/font]
[font size=4]—Steady Advancement toward Practical Use—[/font]
2015.03.18
(2015.05.19 Update)
[font size=3]National Institute for Materials Science (NIMS)
…
Abstract
Perovskite solar cells are promising low-cost and highly-efficient next-generation solar cells. The ad hoc Team on Perovskite PV Cells (Kenjiro Miyano, Team Leader) at the Global Research Center for Environment and Energy based on Nanomaterials Science (GREEN) (Kohei Uosaki, Director-General), NIMS (Sukekatsu Ushioda, President), successfully developed perovskite solar cells with good reproducibility and stability as well as exhibiting ideal semiconducting properties. This research result had been published in Applied Physics Letter on March 2015. (Kenjiro Miyano, Masatoshi Yanagida, Neeti Tripathi and Yasuhiro Shirai, Article title: “Simple characterization of electronic processes in perovskite photovoltaic cells”, Appl. Phys. Lett. 106, 093903 (2015); http://dx.doi.org/10.1063/1.4914086
…
While the conventional perovskite solar cells have demonstrated high conversion efficiency, they were not sufficiently stable plagued by their low reproducibility and the hysteresis in the current-voltage curves depending on the direction of the voltage sweeps. For this reason, the semiconducting properties of perovskites had not been identified. We successfully created reproducible and stable perovskite solar cells as follows;
[/font][/font]
[font size=4]—Steady Advancement toward Practical Use—[/font]
2015.03.18
(2015.05.19 Update)
[font size=3]National Institute for Materials Science (NIMS)
…
Abstract
Perovskite solar cells are promising low-cost and highly-efficient next-generation solar cells. The ad hoc Team on Perovskite PV Cells (Kenjiro Miyano, Team Leader) at the Global Research Center for Environment and Energy based on Nanomaterials Science (GREEN) (Kohei Uosaki, Director-General), NIMS (Sukekatsu Ushioda, President), successfully developed perovskite solar cells with good reproducibility and stability as well as exhibiting ideal semiconducting properties. This research result had been published in Applied Physics Letter on March 2015. (Kenjiro Miyano, Masatoshi Yanagida, Neeti Tripathi and Yasuhiro Shirai, Article title: “Simple characterization of electronic processes in perovskite photovoltaic cells”, Appl. Phys. Lett. 106, 093903 (2015); http://dx.doi.org/10.1063/1.4914086
…
While the conventional perovskite solar cells have demonstrated high conversion efficiency, they were not sufficiently stable plagued by their low reproducibility and the hysteresis in the current-voltage curves depending on the direction of the voltage sweeps. For this reason, the semiconducting properties of perovskites had not been identified. We successfully created reproducible and stable perovskite solar cells as follows;
- We created perovskite solar cells with a simplified structure while strictly eliminating moisture and oxygen by employing the fabrication technique we have developed for the organic solar cells in the past.
- We found that our perovskite solar cells are stable and we observed no hysteresis in the current-voltage curve. Furthermore, we found that the perovskite solar cell material serves as an excellent semiconductor with ideal diode properties.
[/font][/font]