Investigation of PCBM/ZnO and C60/BCP-based electron transport layer for high-performance p-i-n perovskite solar cells

Integrating Low-Stack Photonic Crystals with the Honeycomb-like Structural Framework to Enhance the Photovoltaic Performance in Perovskite Solar Cells

“…Driven by the remarkable power conversion efficiency (PCE) achieved by hybrid organic−inorganic perovskite (HOIP)based solar cells (PSCs), extensive research has been devoted to this field for decades. 1,2 A typical configuration for PSCs consists of stacked layers, 3 including a transparent conductive electrode (conductive glasses), and semiconductors with suitable band gaps serving as the compacted electron transfer layer (ETL), 4 which also acts as a good scaffold for the attached optically active perovskite materials. 5 This is followed by a hole transfer layer (HTL) composed of organic materials with suitable band alignment 6 and a counter electrode (carbons or gold) to collect the output circuits.…”

“…Driven by the remarkable power conversion efficiency (PCE) achieved by hybrid organic–inorganic perovskite (HOIP)-based solar cells (PSCs), extensive research has been devoted to this field for decades. , A typical configuration for PSCs consists of stacked layers, including a transparent conductive electrode (conductive glasses), and semiconductors with suitable band gaps serving as the compacted electron transfer layer (ETL), which also acts as a good scaffold for the attached optically active perovskite materials . This is followed by a hole transfer layer (HTL) composed of organic materials with suitable band alignment and a counter electrode (carbons or gold) to collect the output circuits. , From the perspective of ETL scaffolds, SnO 2 possesses unique advantages in the application of planar perovskite solar cells (PSCs) compared to other wide-gap semiconductors due to its excellent electronic properties, such as high charge mobility (240 cm 2 /(V s)) and a wide band gap (3.6 eV) with proper band alignment with perovskites.…”

A simple strategy to obtain graphitic carbon nitride modified TiO2 layer for efficient perovskite solar cells

“…They extract the electrons from perovskite and block the holes to electrodes. Although numerous electron transport materials (such as TiO 2 [4,5], ZnO [6,7], and C61-butyric acid methyl ester [8,9]) have been investigated, TiO 2 remains an important component in high-performance PSCs. However, TiO 2 has limited electron mobility, restricting PSCs performance improvement [10].…”

Highly efficient, self-powered UV photodiodes based on leadfree perovskite nanocrystals through interfacial engineering

“…Although ZnO is usually used as an ETL material due to its high electron mobility and low fabrication temperature, the low hydrophilic property of ZnO surface gives rise to a poor coverage film by creating pinholes [31,32]. In addition, the mismatched energy levels between the perovskite film and the ZnO ETL caused a large energy loss [33,34]. To overcome the shortcomings, the interface engineering at the heterojunction involves the construction of a bilayer or multi-layered ETL as a very critical technique [35,36].…”

“…To overcome the shortcomings, the interface engineering at the heterojunction involves the construction of a bilayer or multi-layered ETL as a very critical technique [35,36]. For strategically constructed double ETLs with ZnO, we selected [6,6]-phenyl-C(61)-butyric acid methyl ester (PCBM), which has been reported to have a good band alignment with organic-inorganic lead perovskite films and to improve the power conversion efficiency of solar cells [33].…”