scholarly journals Graphene oxide as an additive to improve perovskite film crystallization and morphology for high-efficiency solar cells

RSC Advances ◽  
2018 ◽  
Vol 8 (2) ◽  
pp. 987-993 ◽  
Author(s):  
Xiaonan Zhang ◽  
Gengwu Ji ◽  
Dongbin Xiong ◽  
Zhenhuang Su ◽  
Bin Zhao ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Solar Cells ◽  
Light Absorption ◽  
Carrier Transport ◽  
High Efficiency ◽  
Perovskite Solar Cells ◽  
High Efficiency Solar Cells

The quality of perovskite film has a great impact on its light absorption and carrier transport, which is vital to improve high-efficiency perovskite solar cells (PSCs).

scholarly journals Hybrid Organic-Inorganic Perovskites Open a New Era for Low-Cost, High Efficiency Solar Cells

2015 ◽  
Vol 2015 ◽  
pp. 1-10 ◽  
Author(s):  
Guiming Peng ◽  
Xueqing Xu ◽  
Gang Xu
Keyword(s):  
Solar Cells ◽  
Solar Energy ◽  
High Efficiency ◽  
Low Cost ◽  
Power Conversion ◽  
Perovskite Solar Cells ◽  
Device Structure ◽  
New Era ◽  
High Efficiency Solar Cells ◽  
Conversion Efficiencies

The ramping solar energy to electricity conversion efficiencies of hybrid organic-inorganic perovskite solar cells during the last five years have opened new doors to low-cost solar energy. The record power conversion efficiency has climbed to 19.3% in August 2014 and then jumped to 20.1% in November. In this review, the main achievements for perovskite solar cells categorized from a viewpoint of device structure are overviewed. The challenges and prospects for future development of this field are also briefly presented.

Orientationally engineered 2D/3D perovskite for high efficiency solar cells

2020 ◽  
Vol 4 (1) ◽  
pp. 324-330 ◽  
Author(s):  
Muhammad Sohail Abbas ◽  
Sabir Hussain ◽  
Jinaqi Zhang ◽  
Boxin Wang ◽  
Chen Yang ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Efficiency ◽  
Perovskite Phase ◽  
Perovskite Solar Cells ◽  
Vertical Orientation ◽  
High Efficiency Solar Cells ◽  
Improve Stability ◽  
Better Than

A 2D–3D perovskite, in which 3D perovskite phase is bridged by 2D perovskite having periodically repeated vertical orientation is reported. It's PCE and stability is better than 3D MAPbI3 and it is an excellent structural strategy to improve stability of perovskite solar cells.

The synergistic effect of cooperating solvent vapor annealing for high-efficiency planar inverted perovskite solar cells

2019 ◽  
Vol 7 (48) ◽  
pp. 27267-27277 ◽  
Author(s):  
Ahra Yi ◽  
Sangmin Chae ◽  
Hanbin Lee ◽  
Hyo Jung Kim
Keyword(s):  
Solar Cells ◽  
Synergistic Effect ◽  
Treatment Process ◽  
High Efficiency ◽  
Perovskite Solar Cells ◽  
Solvent Vapor ◽  
Vapor Annealing ◽  
Solvent Vapor Annealing ◽  
Post Treatment Process

We propose co-solvent vapor annealing (SVA) as an effective post-treatment process to improve the quality of crystals and grains for high-efficiency perovskite solar cells.

Exploration of the compositional space for mixed lead halogen perovskites for high efficiency solar cells

2016 ◽  
Vol 9 (5) ◽  
pp. 1706-1724 ◽  
Author(s):  
T. Jesper Jacobsson ◽  
Juan-Pablo Correa-Baena ◽  
Meysam Pazoki ◽  
Michael Saliba ◽  
Kurt Schenk ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Efficiency ◽  
Perovskite Solar Cells ◽  
Systematic Investigation ◽  
High Efficiency Solar Cells ◽  
Compositional Space

A systematic investigation of the compositional space for perovskite solar cells spanned by MAPbI3, MAPbBr3, FAPbI3and FAPbBr3.

scholarly journals The dynamics of methylammonium ions in hybrid organic–inorganic perovskite solar cells

2015 ◽  
Vol 6 (1) ◽  
Author(s):  
Aurelien M. A. Leguy ◽  
Jarvist Moore Frost ◽  
Andrew P. McMahon ◽  
Victoria Garcia Sakai ◽  
W. Kockelmann ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Efficiency ◽  
Time Window ◽  
Photovoltaic Performance ◽  
Perovskite Solar Cells ◽  
Lead Iodide ◽  
High Efficiency Solar Cells ◽  
Scattering Measurements ◽  
Quasielastic Neutron ◽  
Methylammonium Lead Iodide

Abstract Methylammonium lead iodide perovskite can make high-efficiency solar cells, which also show an unexplained photocurrent hysteresis dependent on the device-poling history. Here we report quasielastic neutron scattering measurements showing that dipolar CH3NH3 + ions reorientate between the faces, corners or edges of the pseudo-cubic lattice cages in CH3NH3PbI3 crystals with a room temperature residence time of ∼14 ps. Free rotation, π-flips and ionic diffusion are ruled out within a 1–200-ps time window. Monte Carlo simulations of interacting CH3NH3 + dipoles realigning within a 3D lattice suggest that the scattering measurements may be explained by the stabilization of CH3NH3 + in either antiferroelectric or ferroelectric domains. Collective realignment of CH3NH3 + to screen a device’s built-in potential could reduce photovoltaic performance. However, we estimate the timescale for a domain wall to traverse a typical device to be ∼0.1–1 ms, faster than most observed hysteresis.

scholarly journals Design and Simulation of High-performance Planar npp+ Heterojunction CH3NH3PbI3 Based Perovskite Solar Cells Using BaSnO3 ETM and Cu2O HTM

2021 ◽  
Author(s):  
Atowar Rahman
Keyword(s):  
Solar Cells ◽  
Carrier Transport ◽  
High Efficiency ◽  
Cell Structure ◽  
Perovskite Solar Cells ◽  
Hole Transport ◽  
Inorganic Materials ◽  
Device Performance ◽  
Photogenerated Carrier ◽  
Cell Parameters

Abstract In recent years, organic-inorganic hybrid perovskite solar cells (PSCs) have received more and more attention due to their high photovoltaic (PV) performance, potentially high efficiency, simple cost-effective, scalable, and vacuum-free fabrication techniques. Concerned, but there are still stability issues in PSCs. The use of inorganic materials as photogenerated carrier transport layers can enhance the stability of PSC. In this report, we designed a PSC model with a novel npp+ heterojunction cell structure of Al/ITO/BaSnO3 /CH3NH3 PbI3 /Cu2O/(Cu or Mo) and analyzed the structure by varying the thickness and carrier concentration of each constituent layer, working temperature, and back-contact metal work function using SCAPS-1D solar cell simulator. The simulation addresses, in particular, the role of the BaSnO3 as electron transport materials (ETM) and Cu2O as hole transport materials (HTM) for the device performance. Using BaSnO3 and Cu2O as ETM and HTM, respectively, this article presents the optimization of cell parameters to improve device performance with a predicted power conversion efficiency (PCE) of 32% for the modeled PSC. The proposed novel structure for PSC showed very good PV performance stability on elevated temperature with the temperature coefficient of PCE of only - 0.112 %K-1.

Effects of additives on the improved growth rate and morphology of Chemical Bath Deposited Zn(S,O,OH) buffer layer for Cu(In,Ga)Se2- based solar cells

2013 ◽  
Vol 1538 ◽  
pp. 39-44
Author(s):  
Thibaud Hildebrandt ◽  
Nicolas Loones ◽  
Nathanaelle Schneider ◽  
Muriel Bouttemy ◽  
Jackie Vigneron ◽  
...  
Keyword(s):  
Growth Rate ◽  
Solar Cells ◽  
Buffer Layer ◽  
Sodium Citrate ◽  
High Efficiency ◽  
Buffer Layers ◽  
Deposition Mechanism ◽  
High Efficiency Solar Cells ◽  
Combined Use

ABSTRACTZn(S,O,OH) Chemical Bath Deposited (CBD) remains one of the most studied Cd-free buffer layer for replacing the CBD-CdS buffer layer in a Cu(In,Ga)Se2-based (CIGSe) solar cells and has already demonstrated its potential to lead to high-efficiencies. However, in order to further increase the deposition rate of the Zn(S,O,OH) layer during the CBD, the inclusion of additives can be a reasonable strategy, as long as the efficiencies of solar cells are maintained. The aim of this work is to understand the effect of the introduction of additives such as hydrogen peroxide (H2O2), H2O2+ethanolamine (C2H7NO) and H2O2+tri-sodium citrate (Na3C6H5O7) during CBD on the deposition mechanism, the growth rate and the quality of the buffer layer. It has been shown that the combined use of H2O2 and citrate in the bath formulation allows the deposition of Zn(S,O,OH) via a mix of “ion-by-ion” and “cluster-by-cluster” mechanisms that have good properties as buffer layers leading to high efficiency solar cells.

Improved photovoltaic performance in perovskite solar cells based on CH3NH3PbI3 films fabricated under controlled relative humidity

RSC Advances ◽  
2015 ◽  
Vol 5 (114) ◽  
pp. 93957-93963 ◽  
Author(s):  
Minghang Lv ◽  
Xu Dong ◽  
Xiang Fang ◽  
Bencai Lin ◽  
Shuai Zhang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Relative Humidity ◽  
High Efficiency ◽  
Photovoltaic Performance ◽  
Perovskite Solar Cells ◽  
Hybrid Perovskite ◽  
High Efficiency Solar Cells

The relative humidity and solvent is demonstrated for the controlled ambient crystallization of dense uniform hybrid-perovskite films for high-efficiency solar cells.

scholarly journals Enhanced Light Absorption by Facile Patterning of Nano-grating on Mesoporous TiO2 Photoelectrode for Cesium Lead Halide Perovskite Solar Cells

2020 ◽  
Author(s):  
Sungho Woo ◽  
Kang-Pil Kim ◽  
Soo Min Kwon ◽  
Wook Hyun Kim
Keyword(s):  
Solar Cells ◽  
Light Absorption ◽  
High Efficiency ◽  
Low Cost ◽  
Perovskite Solar Cells ◽  
Absorption Efficiency ◽  
Wide Bandgap ◽  
Perovskite Material ◽  
Light Utilization ◽  
Halide Perovskite

Abstract CsPbIBr2, a type of cesium based all-inorganic halide perovskite (CsPe) composition, has been proposed as an alternative perovskite material against the mainstream organic–inorganic hybrid halide perovskite (HPe) materials owing to its exceptional humidity, thermal, temperature, and light stability. However, the low power conversion efficiency (PCE) due to its wide bandgap (2.05 eV) is an obstacle for its application in developing highly efficient solar cells. In this study, facile nanoimprinted one-dimensional grating nanopattern (1D GNP) formation on mesoporous TiO2 (mp-TiO2) photoelectrode has been introduced to improve the effective light utilization for enhancing the performance of CsPbIBr2 perovskite solar cells (PSCs). The 1D GNP structure on mp-TiO2 layer can not only increase the light absorption efficiency by diffracting the unabsorbed light into the mp-TiO2 and CsPbIBr2 active layer, but can also increase the charge separation and collection due to the enlarged interfacial contact area between the mp-TiO2 and CsPbIBr2 layers. Consequently, both current density (JSC) and fill factor (FF) of the fabricated cells were improved leading to over 20% improvement in their PCE. Thus, we conclude that this periodic grating structure, fabricated by simple solvent-assisted nanoimprinting, can play an important role in the realization of high-efficiency and low-cost Cs-based PSCs.

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