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Light-induced reactivity of gold and hybrid perovskite as a new possible degradation mechanism in perovskite solar cellsстатья Исследовательская статья
Статья опубликована в высокорейтинговом журнале
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 10 августа 2018 г.
- Авторы: Shlenskaya Natalia N., Belich Nikolai A., Michael Grätzel, Goodilin Eugene A., Alexey Tarasov
- Журнал: Journal of Materials Chemistry A
- Том: 6
- Год издания: 2018
- Издательство: Royal Society of Chemistry
- Местоположение издательства: United Kingdom
- Первая страница: 1780
- Последняя страница: 1786
- DOI: 10.1039/C7TA10217H
- Аннотация: We suggest a new degradation mechanism of commonly used gold electrodes in hybrid perovskite solar cells (PSCs) originating from chemical interaction between gold and highly reactive iodine-containing byproducts formed in the course of perovskite decomposition. Intensive UV-irradiation of perovskite would typically lead to the release of volatile I2 and CH3NH3I (MAI) resulting in the formation of recently reported highly reactive polyiodide melts (RPMs) with general formula MAI-nI2. These RPMs react aggressively with metallic gold at room temperature causing formation of [AuI2]- and [AuI4]- complexes and, consequently, precipitation on the gold interface of a new (MA)2Au2I6 phase with a tetragonal symmetry. The high rate and depth of this reaction renders gold to be an easy target for attack under these particular conditions despite of its notorious chemical inertness thus making gold unsuitable for the wide use in iodine-based perovskite solar cells; other cheaper and more stable materials are needed as a better choice for further development in this area.
- Добавил в систему: Тарасов Алексей Борисович
Прикрепленные файлы
| № | Имя | Описание | Имя файла | Размер | Добавлен |
|---|---|---|---|---|---|
| 1. | Полный текст | 10.1039c7ta10217h.pdf | 1,4 МБ | 26 декабря 2017 [alexey.bor.tarasov@gmail.com] |