Metal oxide charge transporting layers for stable high-performance perovskite solar cells

Abstract

Charge transporting layers (CTLs) are essential components of perovskite solar cells (PSCs) that significantly impact their performance and stability. Metal oxide CTLs are extensively used for PSCs owing to their...

Dazzling Ca2LuScAl2Si2O12:Ce3+ green-emitting garnet-type phosphors for blue-chip-pumped white light-emitting diodes: broad emission band, high quantum efficiency and excellent thermal stability

“…With the sustainable development of the social economy, excessive energy consumption has always been an important issue. [1][2][3][4][5][6][7] Previous reports have shown that about 22% of the electric power in the USA is consumed in the field of lighting. 8 Thus, how to reduce lighting energy consumption has become the research direction of many researchers.…”

Nitrogen-Doped Graphene Quantum Dot–Tin Dioxide Nanocomposite Ultrathin Films as Efficient Electron Transport Layers for Planar Perovskite Solar Cells

“…Among these, TiO 2 is the most used in perovskite solar cells, due to developments inherited from research on dye-sensitized solar cells (DSSCs) [29]. However, TiO 2 has slow electron mobility (about 0.1-4 cm 2 V −1 s −1 ), requires high-temperature processing (annealing temperatures at 400-450 • C), and has strong photocatalytic activity in the ultraviolet region, which impacts device performance and stability [21,30]. Thus, TiO 2 needs to be replaced by another, more suitable n-type metal oxide layer as an ETL to allow further development for commercial applications [31,32].…”

Device Simulation of a Thin-Layer CsSnI3-Based Solar Cell with Enhanced 31.09% Efficiency

“…Charge transport layers (CTLs) based on organic materials (such as PPEDOT: PSS, P3HT, and spiro-OMeTAD) offer low-temperature solution-based deposition and greater mechanical strength; however, their use is limited because of chemical instability, low charge carrier mobility, and high production cost . On the contrary, state-of-the-art, low-cost, and controlled synthesis having desired thin film morphology, high charge carrier mobility and chemical stability, and tunable optoelectronic traits makes inorganic metal oxides standout CTL materials . Using metal oxide semiconductors as CTLs (both as ETLs and HTLs) has been proven very effective, not only in PCE and stability enhancement but also in preventing perovskite material decomposition, specifically at the interface. − In our device design, comparative to ZnO and SnO 2 as ETLs and CuO and Cu 2 O as HTLs, we found that TiO 2 as an ETL and NiO both assist in achieving 31.09% power conversion efficiency.…”