Thiocyanate assisted performance enhancement of formamidinium based planar perovskite solar cells through a single one-step solution process

2016 ◽  
Vol 4 (24) ◽  
pp. 9430-9436 ◽  
Author(s):  
Shida Yang ◽  
Wenqing Liu ◽  
Lijian Zuo ◽  
Xinqian Zhang ◽  
Tao Ye ◽  
...  
Keyword(s):  
Solar Cells ◽  
Performance Enhancement ◽  
Perovskite Solar Cells ◽  
Solution Process ◽  
Step Method ◽  
One Step

Thiocyanate ammonium additives are found to improve the performance of FAPbI3 based planar perovskite solar cells through a single one-step method.

Charge Transport Layer Doping Influence on Perovskite CH3NH3PbI3-xClx Solar Cell Performance

2018 ◽  
Vol 762 ◽  
pp. 249-254
Author(s):  
Anastasia Ivanova ◽  
Kristina Lebedeva ◽  
Andrey Tokmakov ◽  
Modris Roze ◽  
Igors Kaulachs
Keyword(s):  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Acid Methyl Ester ◽  
Transport Layer ◽  
Electron Transport Layer ◽  
Step Method ◽  
Shunt Resistance ◽  
Solar Cell Performance ◽  
One Step ◽  
Active Research

Organometal hybrid trihalide perovskite solar cells (PSCs) have emerged a new class of optoelectronic devices for various applications. PSCs have demonstrated unprecedented progress in efficiency reaching certified power conversion efficiency 22.1% after only several years of active research. In this paper, we demonstrate inverted planar mixed halide perovskite solar cells where perovskite layers are built by two-step modified interdifussion and one-step methods. We demonstrate how PSC parameters change by doping electron transport layer (ETL). We used N,N-dimethyl-N-octadecyl (3-aminopropyl) trimethoxysilyl chloride (DMOAP) as dopant for ETL [6,6]-phenyl C61butyric acid methyl ester (PCBM). The highest EQE and Vocvalues were obtained for cell prepared by one-step method with fast crystallization and doped ETL but higher fill factor (FF) and shunt resistance (Rshunt) values were obtained for cells prepared by two-step method with undoped ETL.

scholarly journals Influence of the Preparation Method on Planar Perovskite CH3NH3PbI3-xClx Solar Cell Performance and Hysteresis

2017 ◽  
Vol 54 (4) ◽  
pp. 58-68
Author(s):  
A. Ivanova ◽  
A. Tokmakov ◽  
K. Lebedeva ◽  
M. Roze ◽  
I. Kaulachs
Keyword(s):  
Solar Cells ◽  
High Efficiency ◽  
Perovskite Solar Cells ◽  
Acid Methyl Ester ◽  
Hole Transport ◽  
Transport Layer ◽  
Electron Transport Layer ◽  
Step Method ◽  
Solar Cell Performance ◽  
One Step

Abstract Organometal halide perovskites are promising materials for lowcost, high-efficiency solar cells. The method of perovskite layer deposition and the interfacial layers play an important role in determining the efficiency of perovskite solar cells (PSCs). In the paper, we demonstrate inverted planar perovskite solar cells where perovskite layers are deposited by two-step modified interdiffusion and one-step methods. We also demonstrate how PSC parameters change by doping of charge transport layers (CTL). We used dimethylsupoxide (DMSO) as dopant for the hole transport layer (PEDOT:PSS) but for the electron transport layer [6,6]-phenyl C61 butyric acid methyl ester (PCBM)) we used N,N-dimethyl-N-octadecyl(3-aminopropyl)trimethoxysilyl chloride (DMOAP). The highest main PSC parameters (PCE, EQE, VOC) were obtained for cells prepared by the one-step method with fast crystallization and doped CTLs but higher fill factor (FF) and shunt resistance (Rsh) values were obtained for cells prepared by the two-step method with undoped CTLs.

scholarly journals Influence of Solution Deposition Process on Modulating Majority Charge Carrier Type and Quality of Perovskite Thin Films for Solar Cells

Materials ◽  
2019 ◽  
Vol 12 (15) ◽  
pp. 2494 ◽  
Author(s):  
Chuangchuang Chang ◽  
Xiaoping Zou ◽  
Jin Cheng ◽  
Tao Ling ◽  
Yujun Yao ◽  
...  
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Deposition Process ◽  
Step Method ◽  
Perovskite Layer ◽  
Majority Carrier ◽  
One Step ◽  
The One

In the past ten years, extensive research has witnessed the rapid development of perovskite solar cells (PSCs) and diversified preparation processing craft. At present, the most widely used methods of preparing perovskite solar cells are the one-step method and the two-step method. The main work of this paper is to study the effect of the solution deposition process on the quality of perovskite thin films, as well as modulating majority charge carrier types. Perovskite film was prepared in air by designing different processes, which were then adequately analyzed with corresponding methods. It was demonstrated that the preparation process plays a crucial role in modulating the type of majority carrier and in achieving high-quality perovskite thin film. The one-step prepared perovskite layer is enriched in MA+, leading to a P type majority carrier type thin film. The two-step prepared perovskite layer is enriched in Pb2+, leading to a N type majority carrier type thin film. In addition, we found that the one-step method caused PbI2 residue due to component segregation, which seriously affects the interface and film quality of the perovskite layer. This work aims to modulate the majority carrier type of perovskite film through different preparation processes, which can lay the foundation for the study of homojunction perovskite solar cells to improve the device performance of PSCs.

The N, N-Dimethylformamide Annealing for Enhanced Performance of Perovskite Solar Cells Fabricated in Ambient Air

NANO ◽  
2018 ◽  
Vol 13 (09) ◽  
pp. 1850102
Author(s):  
Xiude Yang ◽  
Debei Liu ◽  
Ping Li ◽  
Bo Wu ◽  
Haishen Huang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Short Circuit ◽  
Perovskite Solar Cells ◽  
Solution Process ◽  
Cost Effective ◽  
Short Circuit Current ◽  
Ambient Air ◽  
Short Circuit Current Density ◽  
Coating Method ◽  
One Step

By adopting N, N-Dimethylformamide (DMF) atmosphere annealing at room temperature, planar perovskite solar cells with a p-i-n structure of ITO/PEDOT:PSS/Perovskite/PCBM/C[Formula: see text]/Al are fabricated by a simple one-step solution process in ambient air with humidity around 50%, and the influence of DMF atmosphere on perovskite solar cells (PSCs) is systematically investigated. Compared to the reference device without DMF reaction, the perovskite films treated by modest DMF annealing show a better distribution and a higher densification, and thus the power conversion efficiency (PCE), short circuit current density ([Formula: see text] and fill factor (FF) are increased by about 17%, 8% and 6%, respectively. This work displays the importance of solvent annealing for perovskite film prepared by the one-step spin-coating method, and possibly provides a simple and cost-effective way to efficiently fabricate PSCs in ambient air.

scholarly journals 2D materials for conducting holes from grain boundaries in perovskite solar cells

2021 ◽  
Vol 10 (1) ◽  
Author(s):  
Peng You ◽  
Guanqi Tang ◽  
Jiupeng Cao ◽  
Dong Shen ◽  
Tsz-Wai Ng ◽  
...  
Keyword(s):  
Solar Cells ◽  
Grain Boundaries ◽  
Performance Enhancement ◽  
2D Materials ◽  
Photovoltaic Performance ◽  
Perovskite Solar Cells ◽  
Solution Process ◽  
High Mobility ◽  
Cost Effective ◽  
Hole Transport

AbstractGrain boundaries in organic–inorganic halide perovskite solar cells (PSCs) have been found to be detrimental to the photovoltaic performance of devices. Here, we develop a unique approach to overcome this problem by modifying the edges of perovskite grain boundaries with flakes of high-mobility two-dimensional (2D) materials via a convenient solution process. A synergistic effect between the 2D flakes and perovskite grain boundaries is observed for the first time, which can significantly enhance the performance of PSCs. We find that the 2D flakes can conduct holes from the grain boundaries to the hole transport layers in PSCs, thereby making hole channels in the grain boundaries of the devices. Hence, 2D flakes with high carrier mobilities and short distances to grain boundaries can induce a more pronounced performance enhancement of the devices. This work presents a cost-effective strategy for improving the performance of PSCs by using high-mobility 2D materials.

Copper and Bismuth incorporated mixed cation perovskite solar cells by one-step solution process

Solar Energy ◽  
2021 ◽  
Vol 218 ◽  
pp. 226-236
Author(s):  
S. Karthick ◽  
H. Hawashin ◽  
N. Parou ◽  
S. Vedraine ◽  
S. Velumani ◽  
...  
Keyword(s):  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Solution Process ◽  
Mixed Cation ◽  
One Step

Characterization on Highly Efficient Perovskite Solar Cells Made from One‐step and Two‐step Solution Process

Solar RRL ◽  
2021 ◽  
Author(s):  
Tzu-Sen Su ◽  
Tzu-En Fan ◽  
Hio-Kun Si ◽  
Duc-Anh Le ◽  
Nideesh Perumbalathodi ◽  
...  
Keyword(s):  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Solution Process ◽  
Highly Efficient ◽  
One Step

High efficiency planar Sn–Pb binary perovskite solar cells: controlled growth of large grains via a one-step solution fabrication process

2017 ◽  
Vol 5 (9) ◽  
pp. 2360-2367 ◽  
Author(s):  
Lingang Li ◽  
Fan Zhang ◽  
Yuying Hao ◽  
Qinjun Sun ◽  
Zhanfeng Li ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Efficiency ◽  
Perovskite Solar Cells ◽  
Butyl Alcohol ◽  
Step Method ◽  
High Quality ◽  
Solvent Engineering ◽  
Solvent Annealing ◽  
Alcohol Solvent ◽  
One Step

A well-controlled one-step method, assisted by sec-butyl alcohol solvent engineering and N,N-dimethylformamide solvent annealing under an N2 atmosphere, is developed for the growth of a high quality CH3NH3Pb(1−x)SnxI3 perovskite film.

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