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An investigation on organic and inorganic materials for hole transport ...
Perovskite solar cells (PSCs) have become particularly appealing to the photovoltaic community due to its tremendous growth in performance over the last few decades. The adoption of lead-based perovskite solar cells is hindered by concerns about toxicity and durability. In recent years, studies related to PSCs have focused on these …
Organic hole-transporting materials for efficient perovskite solar cells
Nowadays hole-transporting materials based on conductive small organic molecules and polymers have become the hottest topic in high-performance perovskite solar cells. Currently, the perovskite solar cells have reached certified power conversion efficiency of 22.1%. 2,2′,7,7′-tetrakis(N,N-di-p-methoxyphenylamine)-9,9′-spirobifluorene …
Hole Transport Layer‐Free Low‐Bandgap Perovskite Solar Cells for ...
Low-bandgap (LBG, Eg ≈1.25 eV) tin-lead (Sn-Pb) perovskite solar cells (PSCs) play critical roles in constructing efficient all-perovskite tandem solar cells …
Improved reverse bias stability in p–i–n perovskite solar cells with ...
Perovskite solar cells degrade when subjected to reverse bias. Jiang et al. show that relatively thick hole transport layers and metal back contacts with improved electrochemical stability afford ...
Advances in Hole Transport Materials for Layered Casting Solar Cells …
In many LCSCs, including perovskite solar cells and organic solar cells, a hole transport layer (HTL) is utilized to speed up the extraction and transportation of positive charge carriers (holes) from the active layer to the anode [8,14,17].
20.1 % Certified Efficiency of Planar Hole Transport Layer‐Free …
The planar triple-layer hole transport layer (HTL)-free carbon-based perovskite solar cells (C-PSCs) have outstanding advantages of low cost and high stability, but are limited by low efficiency. The formation of a 3D/2D heterojunction has been widely proven to enhance device performance.
Strong-bonding hole-transport layers reduce …
The light-emitting diodes (LEDs) used in indoor testing of perovskite solar cells do not expose them to the levels of ultraviolet (UV) radiation that they would receive in actual outdoor use. We report …
Hole-Transport Materials for Perovskite Solar Cells
The use of a hole transport material (HTM) remains indispensable in perovskite solar cells. Perovskites can conduct holes, but they are present at low levels, and for efficient charge extraction a HTM layer is a prerequisite. Herein we provide an overview of the diverse types of HTM available, from organic to inorganic, in the hope of ...
Side-chain engineering on triphenylamine derivative-based hole ...
Side-chain engineering on triphenylamine derivative-based hole-transport materials for perovskite solar cells: Theoretical simulation and experimental exploration. Author links open overlay panel Ruiqin Wang a 1, Rui ... The development of hole-transport materials (HTMs) is a significant approach to promote the power conversion …
Large-area perovskite solar cells employing spiro-Naph hole …
Stabilizing the best-performing state-of-the-art perovskite solar cells (PSCs) based on a spiro-OMeTAD hole transport material (HTM), without sacrificing …
Review of Inorganic Hole Transport Materials for …
In the last decade, perovskite solar cells have witnessed great progress with a certified photoelectric conversion efficiency of 25.7%, which is comparable to single-crystal silicon solar cells, but the stability …
Regulating phase homogeneity by self-assembled molecules for
1 · Amorphous phases of self-assembling molecules employed as a hole-transporting layer in inverted perovskite solar cells contribute to homogeneous perovskite film …
Lead-chelating hole-transport layers for efficient and …
The defective bottom interfaces of perovskites and hole-transport layers (HTLs) limit the performance of p-i-n structure perovskite solar cells. We report that the addition of lead chelation molecules into …
Ag:PSS polyelectrolyte/PTB7 bilayers as efficient hole transport …
Thus, it is desirable to improve the PCEs of inverted devices to the levels similar to or higher than those of the regular devices. One widely utilized polymer HTL in both organic solar cells and perovskite solar cells (PeSCs) is poly(3,4-dioxyethylenethiophene):poly(styrenesulfonate) (PEDOT:PSS).
Hole transport layers for organic solar cells: recent progress …
As a new generation of solid-state film cells, organic solar cells (OSCs) have become the research focus in the field of renewable energy sources, and the reported power conversion efficiencies (PCEs) have been boosted to 18%. Hole transport layer (HTL) materials, a critical component of OSCs, exert a tremen Journal of Materials Chemistry A Recent …
Ag:PSS polyelectrolyte/PTB7 bilayers as efficient hole transport …
The effectiveness of a hole transport bilayer were comprised a polyelectrolyte-based Ag:PSS with a p-type conjugated polymer (PTB7). • While single-layer Ag:PSS underperformed due to poor surface coverage and voids in the perovskite film.
Reinforcing self-assembly of hole transport molecules …
Power conversion efficiencies (PCEs) of inverted perovskite solar cells (PSCs) have been improved by the use of a self-assembled monolayer (SAM) hole transport layer. Long-term stability of …
Perovskite Solar Cells with Polyaniline Hole Transport Layers ...
Hole transport layers (HTLs) in perovskite photovoltaics do not just play a key role in device performance; they also determine the overall flexibility, cost, and opportune tandem solar cell applications. Currently used HTLs have limited functionality and are costly. Here, we develop an efficient bifunctional and cost-effective HTL based …
Two-dimensional phthalocyanine-based molecular additives …
1. Introduction. Faced with an energy crisis, the photovoltaic sector has attracted a lot of fascination, particularly with respect to thin-film perovskite solar cells (PSCs) that can convert light energy into electricity [1].PSCs have ushered in a period of vigorous development, with power conversion efficiencies (PCEs) exceeding 26% [2].The …
Low-Cost Layered Double Hydroxides as Inorganic Hole Transport …
Perovskite solar cells (PSCs) are expected to be comparable to silicon-based solar cells. However, the high efficiency of PSCs relies on expensive and unstable organics as a hole transport layer (HTL). Here, inorganic layered double hydroxides (LDHs) are chosen as the HTL. LDHs can be better dispersed in organic solvents due to rich …
Inorganic hole transport layers in inverted perovskite solar cells: …
The CuGaO 2 has been used as a HTL in solar cells which possessed a wide optical band gap (3.4-3.7 eV) with p-type conductivity, low VB edge position (∼5.4 eV), high hole mobility and exceptional chemical as well as thermal stabilities Choulis and co-workers reported a preparation of p-type nanoparticles of CuGaO 2 functional layers as HTLs ...
Cascade Reaction in Organic Hole Transport Layer Enables …
The doped organic hole transport layer (HTL) is crucial for achieving high-efficiency perovskite solar cells (PSCs). However, the traditional doping strategy undergoes a time-consuming and environment-dependent oxidation process, which hinders the technology upgrades and commercialization of PSCs.
Hole-Transport Materials for Perovskite Solar Cells
Hole for whole: Semiconductor hole-transport materials (HTMs) are an essential component for perovskite solar cells. The three classes of materials available, inorganic, polymeric, and small molecule …
Polymers | Free Full-Text | Composited Film of Poly(3,4 ...
It is important to lower the cost and stability of the organic–inorganic hybrid perovskite solar cells (PSCs) for industrial application. The commonly used hole transport materials (HTMs) such as Spiro-OMeTAD, poly[bis(4-phenyl)(2,4,6-trimethylphenyl)amine] (PTAA) and poly(3-hexylthiophene-2,5-diyl) (P3HT) are very expensive. Here, 3,4 …
Recent progress of inorganic hole transport materials for efficient …
Due to the high mobility, CuS is employed as hole transport layer in organic solar cells and dye-sensitized solar cells. PSCs based on CuS have also been studied due to the compatible band alignment with metal halide perovskite. In 2016, Rao et al. primitively utilized CuS nanoparticles (NPs) in inverted planar PSCs (Figure 13A).