Colloidally prepared La-doped BaSnO 3 electrodes for efficient, photostable perovskite solar cells

American Association for the Advancement of Science (AAAS) - Tập 356 Số 6334 - Trang 167-171 - 2017
Seong Sik Shin1,2, Eun Joo Yeom1, Woon Seok Yang3, Seyoon Hur4, Min Gyu Kim5, Jino Im1, Jangwon Seo1, Jun Hong Noh1,6, Sang Il Seok1,3
1Division of Advanced Materials, Korea Research Institute of Chemical Technology, 141 Gajeong-ro, Yuseong-gu, Daejeon 34114, Republic of Korea
2Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139 USA
3Perovtronics Research Center, School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology, 50 UNIST-gil, Eonyang-eup, Ulju-gun, Ulsan 44919, Republic of Korea.
4Department of Materials Science and Engineering, Seoul National University, Seoul 151-744, Republic of Korea
5Beamline Research Division Pohang Accelerator Laboratory (PAL), Pohang 790-784, Republic of Korea
6School of Civil, Environmental and Architectural Engineering, Korea University, Seoul, 136-713, Republic of Korea

Tóm tắt

Transporter layers for greater stability Although perovskite solar cells (PSCs) can have power conversion efficiencies exceeding 20%, they can have limited stability under ultraviolet irradiation. This is in part because the mesoporous TiO 2 used as an electron-transporting layer can photocatalyze unwanted reactions in the perovskite layer. Shin et al. report a low-temperature colloidal method for depositing La-doped BaSnO 3 films as a replacement for TiO 2 to reduce such ultraviolet-induced damage. Solar cells retained over 90% of their initial performance after 1000 hours of full sun illumination. Science , this issue p. 167

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American Association for the Advancement of Science (AAAS)

Tập 356 Số 6334

167-171

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