scholarly journals A general approach to high-efficiency perovskite solar cells by any antisolvent

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Alexander D. Taylor ◽  
Qing Sun ◽  
Katelyn P. Goetz ◽  
Qingzhi An ◽  
Tim Schramm ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Efficiency ◽  
Perovskite Solar Cells ◽  
Precursor Solution ◽  
Microstructural Characterization ◽  
Application Rate ◽  
Perovskite Layer ◽  
Highly Efficient ◽  
Application Procedure ◽  
Wide Range

AbstractDeposition of perovskite films by antisolvent engineering is a highly common method employed in perovskite photovoltaics research. Herein, we report on a general method that allows for the fabrication of highly efficient perovskite solar cells by any antisolvent via manipulation of the antisolvent application rate. Through detailed structural, compositional, and microstructural characterization of perovskite layers fabricated by 14 different antisolvents, we identify two key factors that influence the quality of the perovskite layer: the solubility of the organic precursors in the antisolvent and its miscibility with the host solvent(s) of the perovskite precursor solution, which combine to produce rate-dependent behavior during the antisolvent application step. Leveraging this, we produce devices with power conversion efficiencies (PCEs) that exceed 21% using a wide range of antisolvents. Moreover, we demonstrate that employing the optimal antisolvent application procedure allows for highly efficient solar cells to be fabricated from a broad range of precursor stoichiometries.

scholarly journals Facile all-dip-coating deposition of highly efficient (CH3)3NPbI3−xClx perovskite materials from aqueous non-halide lead precursor

RSC Advances ◽  
2020 ◽  
Vol 10 (48) ◽  
pp. 29010-29017 ◽  
Author(s):  
Muhammad Adnan ◽  
Zobia Irshad ◽  
Jae Kwan Lee
Keyword(s):  
Solar Cells ◽  
High Efficiency ◽  
Perovskite Solar Cells ◽  
Precursor Solution ◽  
Dip Coating ◽  
Coating Deposition ◽  
Highly Efficient ◽  
Perovskite Materials ◽  
Halide Solution

Sequential all-dip-coating processed perovskite materials was conducted in an aqueous non-halide lead precursor solution, which was followed by that in a mixed halide solution for high-efficiency perovskite solar cells.

scholarly journals Effect of SnO2 Colloidal Dispersion Solution Concentration on the Quality of Perovskite Layer of Solar Cells

Coatings ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 591
Author(s):  
Keke Song ◽  
Xiaoping Zou ◽  
Huiyin Zhang ◽  
Chunqian Zhang ◽  
Jin Cheng ◽  
...  
Keyword(s):  
Solar Cells ◽  
Low Temperature ◽  
High Efficiency ◽  
Surface Condition ◽  
Perovskite Solar Cells ◽  
Colloidal Dispersion ◽  
Transport Layer ◽  
Electron Transport Layer ◽  
Perovskite Layer ◽  
Dispersion Solution

The electron transport layer (ETL) is critical to carrier extraction for perovskite solar cells (PSCs). Moreover, the morphology and surface condition of the ETL could influence the topography of the perovskite layer. ZnO, TiO2, and SnO2 were widely investigated as ETL materials. However, TiO2 requires a sintering process under high temperature and ZnO has the trouble of chemical instability. SnO2 possesses the advantages of low-temperature fabrication and high conductivity, which is critical to the performance of PSCs prepared under low temperature. Here, we optimized the morphology and property of SnO2 by modulating the concentration of a SnO2 colloidal dispersion solution. When adjusting the concentration of SnO2 colloidal dispersion solution to 5 wt.% (in water), SnO2 film indicated better performance and the perovskite film has a large grain size and smooth surface. Based on high efficiency (16.82%), the device keeps a low hysteresis index (0.23).

Enhanced Grain Size and Crystallinity in CH3NH3PbI3 Perovskite Films by Metal Additives to the Single-Step Solution Fabrication Process

MRS Advances ◽  
2018 ◽  
Vol 3 (55) ◽  
pp. 3237-3242 ◽  
Author(s):  
Zahrah S. Almutawah ◽  
Suneth C. Watthage ◽  
Zhaoning Song ◽  
Ramez H. Ahangharnejhad ◽  
Kamala K. Subedi ◽  
...  
Keyword(s):  
Grain Size ◽  
Solar Cells ◽  
High Performance ◽  
High Efficiency ◽  
Perovskite Solar Cells ◽  
Precursor Solution ◽  
Single Step ◽  
Fabrication Process ◽  
Lead Iodide ◽  
Methylammonium Lead Iodide

ABSTRACTMethods of obtaining large grain size and high crystallinity in absorber materials play an important role in fabrication of high-performance methylammonium lead iodide (MAPbI3) perovskite solar cells. Here we study the effect of adding small concentrations of Cd2+, Zn2+, and Fe2+salts to the perovskite precursor solution used in the single-step solution fabrication process. Enhanced grain size and crystallinity in MAPbI3 films were obtained by using 0.1% of Cd2+ or Zn2+in the precursor solution. Consequently, solar cells constructed with Cd- and Zn-doped perovskite films show a significant improvement in device performance. These results suggest that the process may be an effective and facile method to fabricate high-efficiency perovskite photovoltaic devices.

scholarly journals Systematic derivation of a surface polarisation model for planar perovskite solar cells

2018 ◽  
Vol 30 (3) ◽  
pp. 427-457 ◽  
Author(s):  
N. E. COURTIER ◽  
J. M. FOSTER ◽  
S. E. J. O'KANE ◽  
A. B. WALKER ◽  
G. RICHARDSON
Keyword(s):  
Solar Cells ◽  
Numerical Solutions ◽  
Perovskite Solar Cells ◽  
Practical Interest ◽  
Operating Conditions ◽  
Asymptotic Approach ◽  
Perovskite Layer ◽  
Current Voltage ◽  
Wide Range ◽  
Vacancy Density

Increasing evidence suggests that the presence of mobile ions in perovskite solar cells (PSCs) can cause a current–voltage curve hysteresis. Steady state and transient current–voltage characteristics of a planar metal halide CH3NH3PbI3PSC are analysed with a drift-diffusion model that accounts for both charge transport and ion vacancy motion. The high ion vacancy density within the perovskite layer gives rise to narrow Debye layers (typical width ~2 nm), adjacent to the interfaces with the transport layers, over which large drops in the electric potential occur and in which significant charge is stored. Large disparities between (I) the width of the Debye layers and that of the perovskite layer (~600 nm) and (II) the ion vacancy density and the charge carrier densities motivate an asymptotic approach to solving the model, while the stiffness of the equations renders standard solution methods unreliable. We derive a simplifiedsurface polarisationmodel in which the slow ion dynamics are replaced by interfacial (non-linear) capacitances at the perovskite interfaces. Favourable comparison is made between the results of the asymptotic approach and numerical solutions for a realistic cell over a wide range of operating conditions of practical interest.

scholarly journals Engineering the underlying surface to manipulate the growth of 2D perovskites for highly efficient solar cells

2019 ◽  
Vol 7 (23) ◽  
pp. 14027-14032 ◽  
Author(s):  
Shuoxun Tian ◽  
Jiehuan Chen ◽  
Xiaomei Lian ◽  
Yaqin Wang ◽  
Yingzhu Zhang ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Efficiency ◽  
Perovskite Solar Cells ◽  
Underlying Surface ◽  
Highly Efficient

High efficiency (12.78%) 2D perovskite solar cells are realized by engineering the substrate to manipulate the growth of 2D perovskites.

Dopant-free polymeric hole transport materials for highly efficient and stable perovskite solar cells

2016 ◽  
Vol 9 (7) ◽  
pp. 2326-2333 ◽  
Author(s):  
Guan-Woo Kim ◽  
Gyeongho Kang ◽  
Jinseck Kim ◽  
Gang-Young Lee ◽  
Hong Il Kim ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
High Efficiency ◽  
Perovskite Solar Cells ◽  
Perovskite Solar Cell ◽  
Hole Transport ◽  
Highly Efficient

A dopant–free polymeric hole transport material (HTM), RCP, based on benzo[1,2-b:4,5:b′]dithiophene and 2,1,3-benzothiadiazole exhibited a high efficiency of 17.3% in a perovskite solar cell and maintained its initial efficiency for over 1400 hours.

Achieving high efficiency and improved stability in large-area ITO-free perovskite solar cells with thiol-functionalized self-assembled monolayers

2016 ◽  
Vol 4 (20) ◽  
pp. 7903-7913 ◽  
Author(s):  
Chih-Yu Chang ◽  
Yu-Chia Chang ◽  
Wen-Kuan Huang ◽  
Wen-Chi Liao ◽  
Hung Wang ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Efficiency ◽  
Perovskite Solar Cells ◽  
Self Assembled Monolayers ◽  
Large Area ◽  
Highly Efficient ◽  
Interfacial Modification ◽  
Assembled Monolayers ◽  
Improved Stability ◽  
Self Assembled

A promising approach towards highly efficient and stable large-area ITO-free perovskite solar cells is demonstrated by employing thiol-functionalized self-assembled monolayers as interfacial modification layers.

scholarly journals Perovskite Solar Cells: Stabilization of Precursor Solution and Perovskite Layer by Addition of Sulfur (Adv. Energy Mater. 17/2019)

2019 ◽  
Vol 9 (17) ◽  
pp. 1970056
Author(s):  
Hanul Min ◽  
Gwisu Kim ◽  
Min Jae Paik ◽  
Seungwoon Lee ◽  
Woon Seok Yang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Precursor Solution ◽  
Perovskite Layer ◽  
Energy Mater

A PCBM-assisted perovskite growth process to fabricate high efficiency semitransparent solar cells

2016 ◽  
Vol 4 (30) ◽  
pp. 11648-11655 ◽  
Author(s):  
Chao Li ◽  
Joseph Sleppy ◽  
Nitesh Dhasmana ◽  
Mikhael Soliman ◽  
Laurene Tetard ◽  
...  
Keyword(s):  
Solar Cells ◽  
Growth Process ◽  
High Efficiency ◽  
Perovskite Solar Cells ◽  
Highly Efficient

Developing highly efficient semitransparent perovskite solar cells in a simple and rapid fashion will open the window for their applications in integrated photovoltaics.

Highly efficient and bending durable perovskite solar cells: toward a wearable power source

2015 ◽  
Vol 8 (3) ◽  
pp. 916-921 ◽  
Author(s):  
Byeong Jo Kim ◽  
Dong Hoe Kim ◽  
Yoo-Yong Lee ◽  
Hee-Won Shin ◽  
Gill Sang Han ◽  
...  
Keyword(s):  
Solar Cells ◽  
Atomic Layer Deposition ◽  
High Efficiency ◽  
Perovskite Solar Cells ◽  
Atomic Layer ◽  
Power Source ◽  
Highly Efficient ◽  
Layer Deposition ◽  
Bending Radius

We report annealing-free compact TiOx layer by atomic layer deposition for high efficiency flexible perovskite solar cells, and maintained 95% of the initial PCE after 1000 bending cycles with 10 mm bending radius.

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