Bibliometric analysis of carbon-based electrode perovskite solar cells progress

Perovskite solar cells (PSCs) have raised significant attention due to their rapid increase in power conversion efficiency (PCE) in less than 15 years. However, the metal-based counter electrode of the PSC device suffers from stability issues under ambient air conditions. In contrast, the carbon-based electrode perovskite solar cells (CBPSCs) have better stability in ambient air than the metal-based electrode. Based on the bibliometric analysis, this paper presents the research trends and future outlook of CBPSCs spanning from January 1, 2013, to August 31, 2023. The VOSviewer and Biblioshiny (Bibliometrix) software were used to visualize the analyzed dataset retrieved from the Scopus database. The bibliometric analysis includes the CBPSCs annual publication, source network, co-occurrence of all keywords analysis, author analysis, country analysis, research funding analysis, central area in CBPSCs, and progress in CBPSCs. The results show that China was leading in the overall analysis area, including the funding sponsor. The highest PCE-certified record in CBPSC to date was 21.9 %, which is almost comparable to the metal-based electrode (26.1 %). The research trends based on bibliometric analysis reveal that the future research focus will be on the carbon interface and charge transfer, which can be done by engineering the layer or incorporating dopants. This paper is expected to give insight to the researcher or stakeholder in the advancement of CBPSCs.