Advanced hermetic encapsulation of perovskite solar cells: the route to commercialization

• Type: Article in International Scientific Journal
• Date: 2020

Authors

Seyedali Emami (Author) Other; Mertins, J. (Author) Other; Ivanou, D. (Author) FEUP; Adélio Mendes (Author) FEUP

Journal

Title: Journal of Materials Chemistry A

Vol. 8

Pages: 2654-2662

ISSN: 2050-7488

Publisher: Royal Society of Chemistry

Indexing

ISI Web of Knowledge - 24 Citations

Scopus - 25 Citations

BASE - Bielefeld Academic Search Engine

Scientific classification

FOS: Engineering and technology > Chemical engineering

Associated Projects

LEPABE - Financiamento Plurianual 2020-2023 da Unidade de I&D LEPABE - Laboratório de Engenharia de Processos, Ambiente, Biotecnologia e Energia

LEPABE-2-ECO-INNOVATION - LEPABE-2-ECO-INNOVATION

SunStorage - Recolha e armazenamento de energia solar

SunFlow - Armazenamento de energia solar em baterias redox de caudal

Other information

Authenticus ID: P-00R-QPF

DOI: 10.1039/c9ta11907h

Abstract (EN): Though perovskite solar cells (PSCs) are rapidly emerging into the photovoltaic (PV) community, their long-term stability raises huge concerns for their future commercialization. PSCs are sensitive to humidity and temperature. A hermetic encapsulation is crucial for PSCs not only to prevent them from external environmental effects but also to avoid leakage of Pb-containing materials of the cells. An advanced laser-assisted glass-frit encapsulation method is developed to seal HTM-free PSCs. The long-term stabilities of the laser-sealed devices are examined under harsh environmental conditions of humidity and temperature exposure tests. The hermetically sealed PSCs have passed 70 thermal cycles (-40 degrees C to 85 degrees C) and 50 h damp heat (85 degrees C, 85% RH) tests according to the IEC61646 standard. The power conversion efficiency of hermetically encapsulated PSCs remained constant for 500 h under humid air feeding exposure (80 +/- 5% RH); non-hermetically encapsulated devices degraded after ca. 50 h. This work indicates that the hermeticity level of an encapsulation plays a key role in the stability of the devices in a humid environment. Therefore, a hermetic encapsulation is vital for the industrialization of PSCs.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 9