Enhanced performance of planar perovskite solar cells using TiO2/SnO2 and TiO2/WO3 bilayer structures: Roles of the interfacial layers

Design and Modelling of Eco-Friendly CH3NH3SnI3-Based Perovskite Solar Cells with Suitable Transport Layers

“…During simulation, the thermal velocity of electrons and holes was defined to be 1 × 10 7 cm/s. A number of articles support all the criteria used in this analysis [4,[47][48][49][50][51][52][53][54][55][56][57][58][59][60][61]. Table 1 shows the simulation parameters used in this article.…”

“…2.92[49] 3.2[37,41] 1.23[42,43] 1.48[53] Electron affinity (eV) 4.2[40] 4.59[54] 4.1[4] 4.17[4,42] 4.07 [56] Dielectric permittivity (relative) 3.9 [40] 5.76 [54] 9 [44,45] 10 [40,46] 18.1 [56] CB effective density of states (1/cm 3 ) 2.5 × 10 21 [40] 1.96 × 10 19 [54] 2.2 × 10 18 [4] 1 × 10 19 [40] 2.1 × 10 19 [56] VB effective density of states (1/cm 3 ) 2.5 × 10 21 [40] 1.96 × 10 19 [54] 1 × 10 19 1 × 10 18 [40,46] 5.5 × 10 19 [60] Electron thermal velocity (cm/s) 1 × 10 7 [40] 1 × 10 7 [54] 1 × 10 7 [61] 1 × 10 7 [59] 1 × 10 7 [59] Hole thermal velocity (cm/s) 1 × 10 7 [40] 1 × 10 7 [54] 1 × 10 7 [61] 1 × 10 7 [59] 1 × 10 7 [59]…”

Advances in SnO2-based perovskite solar cells: from preparation to photovoltaic applications

“…Magnetron sputtering is a mature and reliable deposition method with the use of low-cost metal-oxide targets to prepare metal-oxide thin lms in the lab-and industrial-scale. 145,146 SnO 2 particles are sputtered by high energy argon ions, react with the reaction gas (like high purity oxygen), and then deposited on the top of the FTO, which is a continuous process. Magnetron sputtering has excellent merits, including the precise control of lm density and thickness, low waste of raw materials, a mild deposition process, and low production cost.…”

All-inorganic perovskite quantum dots as light-harvesting, interfacial, and light-converting layers toward solar cells

“…In this regard, controlling the CTL/perovskite interface can accelerate carrier transfer and inhibit recombination, which is conducive for improving the PV performance and environmental stability, and reducing the J-V hysteresis characteristics. [112][113][114] In addition, for AIPQDSCs, since QDs have large surface area and complicated environment, they can be in full contact with metal oxides and nano-carbides, and can also be used as absorbers for the photosensitization of QDs, which greatly improves the efficiency of energy utilization and charge transport efficiency. 115 Therefore, adjusting the interface characteristics of inorganic perovskite QDs, passivating interface defects, accelerating separation, and extraction of carriers are of great signicance for the realization of efficient and stable PSCs.…”