Perovskite solar cells (PSCs) have made huge progress with a record power conversion
efficiency of up to 25.8%(certified 25.5%) in the last decade. Hole transporting materials …

2, 2′, 7, 7′-Tetrakis (N, N-di-p-methoxyphenylamine)-9, 9′-spirobifluorene (spiro-
OMeTAD), as an organic small molecule material, is the most commonly employed hole …

The dominated hole transport material (HTM) used in state-of-the-art perovskite solar cells
(PSCs) is Spiro-OMeTAD, which needs to be doped to improve its conductivity and mobility …

The passivation of the intrinsic surface defects of perovskites by organic functional materials
has a great potential to retard charge recombination and enhance charge extraction …

The overwhelming improvement in performance and the cost-effective solution processing
enable perovskite solar cells (PVSCs) as a promising technology in the photovoltaic …

Inverted perovskite solar cells (PSCs) with pin structure have recently attracted widespread
attention owing to their fast-growing power conversion efficiency. In this Review, we focus on …

The optimization of thickness and surface roughness of the TiO 2 layer as an efficient
electron transporting layer (ETL) plays a significant role on the performance improvement of …

Hole transporting materials (HTMs) are imperative for promoting the development of
perovskite solar cells (PSCs). Herein, three isomers of RQ4, RQ5, and RQ6 are constructed …

Perovskite solar cells (PSCs) have become a hot spot in the field of photovoltaic research in
recent years due to their low fabrication costs and rising efficiencies. However, the …

Hole-transport materials (HTMs) play an important role in perovskite solar cells (PSCs) to
enhance the power conversion efficiency (PCE). The innovation of HTMs can increase the …