[23] EU Funding & Tenders Portal, Ultra-stable, highly efficient, low-cost perovskite photovoltaics with minimised environmental impact, https://ec.europa.eu/info/funding-tenders/opportunities/portal/screen/opportunities/projects-details/43108390/101084124/HORIZON?order=DESC&pageNumber=1&pageSize=50&sortBy=title&keywords=%20photovoltaics&isExactMatch=true.