A quantitative and spatially resolved analysis of the performance-bottleneck in high efficiency, planar hybrid perovskite solar cells

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.

Download Full-text

Toward high-efficiency, hysteresis-less, stable perovskite solar cells: unusual doping of a hole-transporting material using a fluorine-containing hydrophobic Lewis acid

Energy & Environmental Science ◽

10.1039/c8ee00036k ◽

2018 ◽

Vol 11 (8) ◽

pp. 2035-2045 ◽

Cited By ~ 106

Author(s):

Junsheng Luo ◽

Jianxing Xia ◽

Hua Yang ◽

Lingling Chen ◽

Zhongquan Wan ◽

...

Keyword(s):

Solar Cells ◽

Lewis Acid ◽

High Efficiency ◽

State Of The Art ◽

Perovskite Solar Cells ◽

Hole Transporting ◽

Hole Transporting Material ◽

Effective Dopant

A fluorine-containing hydrophobic Lewis acid is employed as an effective dopant for PTAA to replace state-of-the-art Li-TFSI/t-BP in PSCs.

Download Full-text

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

Nanomaterials ◽

10.3390/nano9070915 ◽

2019 ◽

Vol 9 (7) ◽

pp. 915 ◽

Cited By ~ 4

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.

Download Full-text

Metal-Organic Framework Materials for Perovskite Solar Cells

Polymers ◽

10.3390/polym12092061 ◽

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.

Download Full-text

Ultrasonic spray deposition of TiO2 electron transport layers for reproducible and high efficiency hybrid perovskite solar cells

Solar Energy ◽

10.1016/j.solener.2019.06.045 ◽

2019 ◽

Vol 188 ◽

pp. 697-705 ◽

Cited By ~ 3

Author(s):

Jingsong Sun ◽

Alexander R. Pascoe ◽

Steffen Meyer ◽

Qijie Wu ◽

Enrico Della Gaspera ◽

...

Keyword(s):

Solar Cells ◽

Electron Transport ◽

High Efficiency ◽

Spray Deposition ◽

Perovskite Solar Cells ◽

Ultrasonic Spray ◽

Hybrid Perovskite

Download Full-text

Research Update: Behind the high efficiency of hybrid perovskite solar cells

APL Materials ◽

10.1063/1.4962143 ◽

2016 ◽

Vol 4 (9) ◽

pp. 091505 ◽

Cited By ~ 28

Author(s):

Azhar Fakharuddin ◽

Francesca De Rossi ◽

Trystan M. Watson ◽

Lukas Schmidt-Mende ◽

Rajan Jose

Keyword(s):

Solar Cells ◽

High Efficiency ◽

Perovskite Solar Cells ◽

Hybrid Perovskite

Download Full-text

Unravelling the role of C60 derivatives as additives into active layers for achieving high-efficiency planar perovskite solar cells

Carbon ◽

10.1016/j.carbon.2020.05.079 ◽

2020 ◽

Vol 167 ◽

pp. 160-168

Author(s):

Lina Hu ◽

Shiqi Li ◽

Longlong Zhang ◽

Yifan Liu ◽

Chenxi Zhang ◽

...

Keyword(s):

Solar Cells ◽

High Efficiency ◽

Perovskite Solar Cells ◽

Active Layers ◽

C60 Derivatives

Download Full-text

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

RSC Advances ◽

10.1039/c5ra14587b ◽

2015 ◽

Vol 5 (114) ◽

pp. 93957-93963 ◽

Cited By ~ 21

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.

Download Full-text

Evaporation-Induced Self-Assembly of Semi-Crystalline PbI2(DMSO) Complex Films as a Facile Route to Reproducible and Efficient Planar p-i-n Perovskite Solar Cells

MRS Advances ◽

10.1557/adv.2018.137 ◽

2018 ◽

Vol 3 (32) ◽

pp. 1807-1817 ◽

Cited By ~ 1

Author(s):

Brandon Dunham ◽

Vivek Vattipalli ◽

Christos Dimitrakopoulos

Keyword(s):

Solar Cells ◽

Self Assembly ◽

Large Scale ◽

High Efficiency ◽

Perovskite Solar Cells ◽

Single Step ◽

Lead Iodide ◽

Active Layers ◽

Evaporation Induced Self Assembly ◽

Complex Film

ABSTRACTHigh quality active layers for hybrid organic-inorganic perovskite solar cells are essential for achieving maximum device performance. However, perovskite active layers in solar cells are frequently prepared with unoptimized processes that lead to layers of inferior quality. This is often the case when research focuses on other aspects of the solar cell device, such as device design and architecture, carrier transport layers, electrodes, interlayers, etc. In this study, a single-step spin-coating method was used to prepare semi-crystalline PbI2(DMSO) complex films via evaporation-induced self-assembly. These optimized intermediate films were then used to form homogeneous methylammonium lead iodide (MAPbI3) perovskite films of optimum thickness (ca. 400 nm) with uniform surface coverage, good crystallinity, high purity, and grain sizes up to one micron, by employing a sequential deposition process involving intramolecular exchange between the PbI2(DMSO) complex film and a methylammonium iodide (MAI) layer deposited on top of it. We found that for certain ranges of MAI concentration, the formation of optimal-quality perovskite active layers was independent of MAI concentration, so long as MAI deposition occurred at specific corresponding spin speeds. Planar p-i-n perovskite solar cells comprising the optimized active layers were fabricated, and they exhibited negligible hysteresis and a maximum power conversion efficiency (PCE) of 16.72%, without any additional compositional and interfacial engineering. The latter can be used in the future to further enhance the PCE. These findings demonstrate the importance of an optimized perovskite active layer for reproducibly fabricating high-efficiency planar p-i-n photovoltaic devices. Additionally, the simplicity of the PbI2(DMSO) complex film preparation and the versatility of the MAI deposition with this fabrication method further enhances the potential of this material for large-scale processing.

Download Full-text