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Exploring Red, Green, and Blue Light-Activated Degradation of Perovskite Films and Solar Cells for Near Space Applications
East China Normal Univ, Peoples R China.
East China Normal Univ, Peoples R China.
East China Normal Univ, Peoples R China.
East China Normal Univ, Peoples R China.
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2019 (English)In: SOLAR RRL, ISSN 2367-198X, article id 1900394Article in journal (Refereed) Epub ahead of print
Abstract [en]

Hybrid perovskite solar cells with a high specific power have great potential to become promising power sources mounted on spacecrafts in space applications. However, there is a lack of study on their photostability as light absorbers in those conditions. Herein, the stability of the perovskite films and solar cells under red, green, and blue (RGB) light illumination in medium vacuum that belongs to near space is explored. The perovskite active layers exhibit different degradations from morphological, chemical, and structural points of view. This is attributed to the strong coupling between photoexcited carriers and the crystal lattice and the diversity of RGB light absorption in the perovskite films. Device characterizations reveal that the efficiency loss of perovskite solar cells results from not only perovskite degradation, but also the photoexcited carriers reducing the energy barrier of ion migration and accelerating the migration to generate more deep-level trap defects. Moreover, comparative devices suggest that the well encapsulation can weaken the effect of vacuum on stability.

Place, publisher, year, edition, pages
Wiley-VCH Verlagsgesellschaft, 2019. article id 1900394
Keywords [en]
near space; perovskite solar cells; photoinduced degradation; red; green; and blue light; stabilities
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Other Chemistry Topics
Identifiers
URN: urn:nbn:se:liu:diva-163033DOI: 10.1002/solr.201900394ISI: 000504233500001OAI: oai:DiVA.org:liu-163033DiVA, id: diva2:1384218
Note

Funding Agencies|National Science Foundation of ChinaNational Natural Science Foundation of China [11604099, 21875067, 51811530011, 51873138]; Fundamental Research Funds for the Central Universities, Shanghai Ring-Star [19QA1403100]; East China Normal University (ECNU) Multifunctional Platform for Innovation [003, 006]; ECNU future scientist project [WLKXJ2019]

Available from: 2020-01-09 Created: 2020-01-09 Last updated: 2020-01-13Bibliographically approved

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Bao, Qinye
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Laboratory of Organic ElectronicsFaculty of Science & Engineering
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CiteExportLink to record
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  • apa
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