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 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.

Exploring the Effects of the Pb2+ Substitution in MAPbI3 on the Photovoltaic Performance of the Hybrid Perovskite Solar Cells

2016 ◽  
Vol 7 (21) ◽  
pp. 4353-4357 ◽  
Author(s):  
Lyubov A. Frolova ◽  
Denis V. Anokhin ◽  
Kirill L. Gerasimov ◽  
Nadezhda N. Dremova ◽  
Pavel A. Troshin
Keyword(s):  
Solar Cells ◽  
Photovoltaic Performance ◽  
Perovskite Solar Cells ◽  
Hybrid Perovskite

scholarly journals Major Impediment to Highly Efficient, Stable and Low-Cost Perovskite Solar Cells

Metals ◽  
2018 ◽  
Vol 8 (11) ◽  
pp. 964 ◽  
Author(s):  
Yue Zhang ◽  
Haiming Zhang ◽  
Xiaohui Zhang ◽  
Lijuan Wei ◽  
Biao Zhang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Carrier Mobility ◽  
High Efficiency ◽  
Low Cost ◽  
Perovskite Solar Cells ◽  
Environmental Stability ◽  
Perovskite Materials ◽  
Hybrid Perovskite ◽  
Silicon Based ◽  
Major Impediment

Organic–inorganic hybrid perovskite solar cells (PSCs) have made immense progress in recent years, owing to outstanding optoelectronic properties of perovskite materials, such as high extinction coefficient, carrier mobility, and low exciton binding energy. Since the first appearance in 2009, the efficiency of PSCs has reached 23.3%. This has made them the most promising rival to silicon-based solar cells. However, there are still several issues to resolve to promote PSCs’ outdoor applications. In this review, three crucial aspects of PSCs, including high efficiency, environmental stability, and low-cost of PSCs, are described in detail. Recent in-depth studies on different aspects are also discussed for better understanding of these issues and possible solutions.

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.

Room-temperature crystallization of hybrid-perovskite thin films via solvent–solvent extraction for high-performance solar cells

2015 ◽  
Vol 3 (15) ◽  
pp. 8178-8184 ◽  
Author(s):  
Yuanyuan Zhou ◽  
Mengjin Yang ◽  
Wenwen Wu ◽  
Alexander L. Vasiliev ◽  
Kai Zhu ◽  
...  
Keyword(s):  
Thin Films ◽  
Solar Cells ◽  
Solvent Extraction ◽  
High Performance ◽  
Room Temperature ◽  
High Efficiency ◽  
Hybrid Perovskite ◽  
High Efficiency Solar Cells ◽  
Temperature Crystallization ◽  
Solvent Solvent

A simple one-step solvent-bathing process based on solvent–solvent extraction, is demonstrated for the controlled room-temperature crystallization of uniform, ultra-smooth hybrid-perovskite thin films for high-efficiency solar cells.

scholarly journals Solvent Engineering for Intermediates Phase, All-Ambient-Air-Processed in Organic–Inorganic Hybrid Perovskite Solar Cells

Nanomaterials ◽  
2019 ◽  
Vol 9 (7) ◽  
pp. 915 ◽  
Author(s):  
Lei Shi ◽  
Huiying Hao ◽  
Jingjing Dong ◽  
Tingting Zhong ◽  
Chen Zhang ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Efficiency ◽  
Intermediate Phase ◽  
Perovskite Solar Cells ◽  
Ambient Air ◽  
Continuous Illumination ◽  
Large Area ◽  
Hybrid Perovskite ◽  
Crystallization Procedure ◽  
Output Efficiency

Intermediate phase is considered an important aspect to deeply understand the crystallization procedure in the growth of high-quality perovskite layers by an anti-solvent technique. However, the moisture influence on the intermediate phase formation is not clear in air conditions as yet. In this work, pure (FA0.2MA1.8)Pb3X8(DMSO·DMF) intermediate phase was obtained in as-prepared perovskite film by spin-coating the precursor of co-solvent (DMSO and DMF) in an ambient air (RH20–30%). Moreover, the appropriate quantity of ethyl acetate (C4H8O2, EA) also controls the formation of pure intermediate phase. The uniform and homogeneous perovskite film was obtained after annealing this intermediate film. Therefore, the best power conversion efficiency (PCE) of perovskite solar cells (PSCs) is 16.24% with an average PCE of 15.53%, of which almost 86% of its initial PCE was preserved after 30 days in air conditions. Besides, the steady-state output efficiency ups to 15.38% under continuous illumination. In addition, the PCE of large area device (100 mm2) reaches 11.11% with a little hysteresis effect. This work would give an orientation for PSCs production at the commercial level, which could lower the cost of fabricating the high efficiency PSCs.

scholarly journals Metal-Organic Framework Materials for Perovskite Solar Cells

Polymers ◽  
2020 ◽  
Vol 12 (9) ◽  
pp. 2061
Author(s):  
Do Yeon Heo ◽  
Ha Huu Do ◽  
Sang Hyun Ahn ◽  
Soo Young Kim
Keyword(s):  
Solar Cells ◽  
High Efficiency ◽  
Metal Organic Framework ◽  
Perovskite Solar Cells ◽  
Dye Sensitized Solar Cells ◽  
Hole Transport ◽  
Framework Materials ◽  
Hybrid Perovskite ◽  
Hole Transport Layers ◽  
Metal Organic

Metal-organic frameworks (MOFs) and MOF-derived materials have been used for several applications, such as hydrogen storage and separation, catalysis, and drug delivery, owing to them having a significantly large surface area and open pore structure. In recent years, MOFs have also been applied to thin-film solar cells, and attractive results have been obtained. In perovskite solar cells (PSCs), the MOF materials are used in the form of an additive for electron and hole transport layers, interlayer, and hybrid perovskite/MOF. MOFs have the potential to be used as a material for obtaining PSCs with high efficiency and stability. In this study, we briefly explain the synthesis of MOFs and the performance of organic and dye-sensitized solar cells with MOFs. Furthermore, we provide a detailed overview on the performance of the most recently reported PSCs using MOFs.

Tailoring molecular termination for thermally stable perovskite solar cells

2021 ◽  
Vol 42 (11) ◽  
pp. 112201
Author(s):  
Xiao Zhang ◽  
Sai Ma ◽  
Jingbi You ◽  
Yang Bai ◽  
Qi Chen
Keyword(s):  
Thermal Stability ◽  
Solar Cells ◽  
Carbonyl Group ◽  
High Efficiency ◽  
Photovoltaic Performance ◽  
Perovskite Solar Cells ◽  
Open Circuit ◽  
Interfacial Engineering ◽  
Improved Performance ◽  
Interface Passivation

Abstract Interfacial engineering has made an outstanding contribution to the development of high-efficiency perovskite solar cells (PSCs). Here, we introduce an effective interface passivation strategy via methoxysilane molecules with different terminal groups. The power conversion efficiency (PCE) has increased from 20.97% to 21.97% after introducing a 3-isocyanatopropyltrimethoxy silane (IPTMS) molecule with carbonyl group, while a trimethoxy[3-(phenylamino)propyl] silane (PAPMS) molecule containing aniline group deteriorates the photovoltaic performance as a consequence of decreased open circuit voltage. The improved performance after IPTMS treatment is ascribed to the suppression of non-radiative recombination and enhancement of carrier transportation. In addition, the devices with carbonyl group modification exhibit outstanding thermal stability, which maintain 90% of its initial PCE after 1500 h exposure. This work provides a guideline for the design of passivation molecules aiming to deliver the efficiency and thermal stability simultaneously.

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