Perovskite solar cells (PSCs) have made remarkable progress in the past decade. The efficiency of single-junction PSCs has now reached a record above 26%. ... F4TCNQ increases the work function of the perovskite by around 0.2 eV, indicating more p-type character at the perovskite/ITO interface. This molecular doping induces upward band bending ...
Perovskite solar cell (PSC) is a promising photovoltaic technology that achieves over 26% power conversion efficiency (PCE). However, the high materials costs, complicated fabrication …
Perovskite solar cells (PSCs) have been able to raise new hopes for a revolution in solar cell technology. However, there are many challenges which need to be r. ... In the first scenario, the work function of the metal (q ...
Planar perovskite solar cells (PSCs) can be made in either a regular n–i–p structure or an inverted p–i–n structure (see Fig. 1 for the meaning of n–i–p and p–i–n as regular and inverted architecture), They are made from either organic–inorganic hybrid semiconducting materials or a complete inorganic material typically made of triple cation semiconductors that …
It''s impressive to see how much progress has been made in the development of perovskite solar cells over the past decade. Achieving a certified efficiency that approaches that of commercially available silicon solar cells is a significant milestone. ... In this work, we report on an effective method to regulate work function (W F) at the weak ...
Perovskite solar cells (PSCs) with an inverted structure (often referred to as the p–i–n architecture) are attractive for future commercialization owing to their easily scalable fabrication ...
PDF | On Aug 29, 2023, Erfan Shirzadi and others published High-Work-Function 2D Perovskites as Passivation Agents in Perovskite Solar Cells | Find, read and cite all the research you need on ...
Nevertheless, these 3D perovskite materials encounter stability challenges. To mitigate these issues, 2D DJ (Dion Jacobson) perovskite material-based solar cells are increasingly utilized in contemporary applications. In this work, (BDA)(MA) n−1 Pb n I 3n+1-based 2D DJ perovskite solar cells (BDPSC) are investigated. Further, it is crucial to ...
The name "perovskite" comes from the nickname for their crystal structure, although other types of non-halide perovskites (such as oxides and nitrides) are utilized in other energy technologies, such as fuel cells and catalysts. Perovskite solar cells have shown remarkable progress in recent years with rapid increases in efficiency, from ...
With an excellent power conversion efficiency of 25.7%, closer to the Shockley–Queisser limit, perovskite solar cells (PSCs) have become a strong candidate for a next-generation energy harvester. However, the lack of stability and reliability in PSCs remained challenging for commercialization. Strategies, such as interfacial and structural engineering, …
Work function tuning of a weak adhesion homojunction for stable perovskite solar cells Chunyang Zhang,1 Yoosang Son,2 Hyungjun Kim,2,* Sun-Ho Lee,1 Xin Liang,1 Guiming Fu,1 Sang-Uk Lee,1 Dong-Am Park,1 Qi Jiang,3 Kai Zhu,3 and Nam-Gyu Park1,4,5,* SUMMARY Perovskite solar cells (PSCs) have demonstrated a comparable effi-ciency to Si-based cells.
Electromigration of iodine through the perovskite solar cell has been expected to be triggered by the presence of metal contacts with considerably different work-functions compared to the front electrode or considerable chemical reactivity with the compounds in the active layer (Besleaga et al. 2016). Decomposition of the perovskite and iodide ...
Li et al. fabricated high-quality perovskite crystalline films by adding a fluorinated polymer, the dipoles of which lowered formation energy of the perovskite black phase, decreased defect density, and also tuned the …
1. Introduction. Perovskite solar cells (PVSCs) have developed rapidly in the past decade and achieved the highest certified power conversion efficiency (PCE) of 25.5%, which is comparable to commercial silicon solar cells [1], [2], [3].However, the high cost of hole transporting layer (HTL) materials (such as Spiro-OMeTAD, PTAA) and high processed …
1 · Completing the picture of the underlying physics of perovskite solar cell interfaces that incorporate self-assembled molecular layers (SAMs) will accelerate further progress in p-i-n …
Reducing interface nonradiative recombination is important for realizing highly efficient perovskite solar cells. In this work, we develop a synergistic bimolecular interlayer (SBI) strategy via 4 ...
It''s impressive to see how much progress has been made in the development of perovskite solar cells over the past decade. Achieving a certified efficiency that approaches that of commercially available silicon solar cells is a …
The effects of electron and hole transport layer with the electrode work function on perovskite solar cells. Mod. Phys. Lett. B 30(27), 1650341 (2016).
Perovskite solar cells with the formula FA1-xCsxPbI3, where FA is formamidinium, provide an attractive option for integrating high efficiency, durable stability and compatibility with scaled-up fabrication.
Enhancement of open-circuit voltage (Voc) is an effective way to improve power conversion efficiency (PCE) of the perovskite solar cells (PSCs). Theoretically, work function engineering of TiO2 ...
SEM of the perovskite layer on substrates with different surface roughness. The grain size form of the perovskites correlates with the surface roughness of the substrate.A
Herein, the recently reported electronic doping of CH 3 NH 3 PbI 3 is employed to fabricate perovskite solar cells in which the interfacial electron transport layer ... independently to the anode work function. Therefore, whatever the metal electrode, we expect to have an ohmic contact at the anode. To confirm our statement and once again ...
Work function maps were recorded using KPFM on identical microscopic areas, as shown in Figure 7b. In these maps, blue indicates a low work function, while red indicates a …
The work function of Nb 2 CT x HTL was modulated by oxygen plasma treatment through increasing the –O terminated functional groups on the Nb 2 CT x surface. ... The hole transport layer (HTL) in perovskite solar cells (PVSCs) plays an important role in determining the crystallization of a perovskite film and holes trans Skip to Main ...
Perovskite solar cells (PSCs) have demonstrated a comparable efficiency to Si-based cells. However, the buried interface with weak adhesion remains a critical issue since the ion migration enhanced by the built-in …
6 · We used work-function-tuned poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) as the electron-transport layer for wide-bandgap (1.74 eV) perovskite solar cells (PSCs). With the coating of polyethylenimine, the work function of PEDOT:PSS was modified from −5.03 to −4.05 eV, which enabled efficient electron transportation ...
We demonstrated p-i-n perovskite solar cells with a record power conversion efficiency of 24.6% over 18 square millimeters and 23.1% over 1 square centimeter, which retained 96 and 88% of the efficiency after 1000 …
Back under alloyed control: In all-inorganic perovskite solar cells, the work function (WF) of the back electrode is tuned by incorporating PtNi nanowires into state-of-the-art carbon paste to reduce the energy difference at the CsPbBr 3 /carbon interface. The matching WFs of the back electrode and the intermediate energy level at the TiO 2 /CsPbBr 3 interface …
In printable mesoscopic perovskite solar cells (PSCs), carbon electrodes play a significant role in charge extraction and transport, influencing the overall device performance. The work function and electrical conductivity of the carbon electrodes mainly affect the open-circuit voltage (VOC) and series resistance (Rs) of the device. In this paper, we propose a hybrid carbon electrode …
In this work, the perovskite solar cell structure (FTO/TiO 2 /CH 3 NH 3 GeI 3 /Spiro-OMeTAD/Au) is numerically modelled in SCAPS. The effect of material thickness, doping concentration, work function, temperature, reflection and interface defect densities on the output performance of perovskite solar cell are studied and presented in detail.
2 · Nakamura, M. et al. Semi-transparent Perovskite Solar Cells for four-terminal Perovskite/CIGS Tandem Solar cells. ACS Appl. Energy Mater. 5, 8103–8111 (2022). Article …
2 · Improving the efficiency of single-junction photovoltaic (PV) technology, which includes industrial-grade crystalline silicon (c-Si) solar cells (SCs) [1] and promising perovskite solar …
A novel all-solid-state, hybrid solar cell based on organic-inorganic metal halide perovskite (CH 3 NH 3 PbX 3) materials has attracted great attention from the researchers all over the world and is considered to be one of the top 10 scientific breakthroughs in 2013.The perovskite materials can be used not only as light-absorbing layer, but also as an electron/hole transport layer due to …
Back under alloyed control: In all-inorganic perovskite solar cells, the work function (WF) of the back electrode is tuned by incorporating PtNi nanowires into state-of-the-art carbon paste to reduce the energy difference at …
The work function difference of the electrodes including doped charge transport layers could introduce a built-in potential generating an electric field in the perovskite film in equilibrium, or the perovskite itself could be either n- or p-doped depending on its stoichiometry and forming a p-n junction somewhere in the device.
Work function tuning of a weak adhesion homojunction for stable perovskite solar cells Chunyang Zhang,1 Yoosang Son,2 Hyungjun Kim,2,* Sun-Ho Lee,1 Xin Liang,1 Guiming Fu,1 Sang-Uk …
Perovskite solar cells (PSC) have been identified as a game-changer in the world of photovoltaics. This is owing to their rapid development in performance efficiency, increasing from 3.5% to 25.8% in a decade. Further advantages of PSCs include low fabrication costs and high tunability compared to conventional silicon-based solar cells. This paper …
2 · Over the past decade, perovskite solar cells (PSCs) have made tremendous progresses in photovoltaic efficiency comparable to crystalline silicon solar cells after the discovery of the efficient ...
It''s impressive to see how much progress has been made in the development of perovskite solar cells over the past decade. Achieving a certified efficiency that approaches that of …
The name "perovskite" comes from the nickname for their crystal structure, although other types of non-halide perovskites (such as oxides and nitrides) are utilized in other energy technologies, such as fuel cells and catalysts. …
Au and Ag are usually used as the back contact metals but have limitations such as Au is too expensive and Ag is unstable. Here, Pt, Au, Ni, Cu, Cr and Ag were studied as the back contact electrodes for perovskite solar cells. We looked at how the work function of metals can affect their photovoltaic characteristics.
The implication of a new 2D material (MXene) in perovskite solar cells has been initiated since its first report in 2018, showing excellent transparency, electrical conductivity, carrier mobility, superior mechanical strength, and tunable work function.
It is found that direct contact between MoO3 and the perovskite leads to a chemical reaction, which diminishes device functionality, and introducing an ultrathin spiro-MeOTAD buffer layer prevents the reaction. We investigate the effect of high work function contacts in halide perovskite absorber-based photovoltaic devices. Photoemission …
