scholarly journals Hydrazinium Salt as Additive To Improve Film Morphology and Carrier Lifetime for High-Efficiency Planar-Heterojunction Perovskite Solar Cells via One-Step Method

2017 ◽  
Vol 9 (42) ◽  
pp. 36810-36816 ◽  
Author(s):  
Xin Zhang ◽  
Sijian Yuan ◽  
Haizhou Lu ◽  
Huotian Zhang ◽  
Pengfei Wang ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Efficiency ◽  
Carrier Lifetime ◽  
Perovskite Solar Cells ◽  
Film Morphology ◽  
Step Method ◽  
One Step ◽  
Hydrazinium Salt ◽  
Planar Heterojunction

Coarsening of one-step deposited organolead triiodide perovskite films via Ostwald ripening for high efficiency planar-heterojunction solar cells

2016 ◽  
Vol 45 (18) ◽  
pp. 7856-7865 ◽  
Author(s):  
Weidong Zhu ◽  
Chunxiong Bao ◽  
Yangrunqian Wang ◽  
Faming Li ◽  
Xiaoxin Zhou ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Efficiency ◽  
Ostwald Ripening ◽  
Perovskite Solar Cells ◽  
Grain Coarsening ◽  
Heterojunction Solar Cells ◽  
One Step ◽  
Planar Heterojunction Solar Cells ◽  
Planar Heterojunction

The remarkable grain coarsening in one-step deposited OTP films for high efficiency planar-heterojunction perovskite solar cells.

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.

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.

scholarly journals Effect of Annealing Process on CH3NH3PbI3-XClX Film Morphology of Planar Heterojunction Perovskite Solar Cells with Optimal Compact TiO2 Layer

2017 ◽  
Vol 2017 ◽  
pp. 1-9 ◽  
Author(s):  
Dan Chen ◽  
Xiaoping Zou ◽  
Hong Yang ◽  
Ningning Zhang ◽  
Wenbin Jin ◽  
...  
Keyword(s):  
Solar Cells ◽  
Annealing Temperature ◽  
Photovoltaic Performance ◽  
Perovskite Solar Cells ◽  
Annealing Process ◽  
Film Morphology ◽  
Perovskite Layer ◽  
Optimal Procedures ◽  
Planar Heterojunction ◽  
Annealing Method

The morphology of compact TiO2 film used as an electron-selective layer and perovskite film used as a light absorption layer in planar perovskite solar cells has a significant influence on the photovoltaic performance of the devices. In this paper, the spin coating speed of the compact TiO2 is investigated in order to get a high-quality film and the compact TiO2 film exhibits pinhole- and crack-free films treated by 2000 rpm for 60 s. Furthermore, the effect of annealing process, including annealing temperature and annealing program, on CH3NH3PbI3-XClX film morphology is studied. At the optimal annealing temperature of 100°C, the CH3NH3PbI3-XClX morphology fabricated by multistep slow annealing method has smaller grain boundaries and holes than that prepared by one-step direct annealing method, which results in the reduction of grain boundary recombination and the increase of Voc. With all optimal procedures, a planar fluorine-doped tin oxide (FTO) substrate/compact TiO2/CH3NH3PbI3-XClX/Spiro-MeOTAD/Au cell is prepared for an active area of 0.1 cm2. It has achieved a power conversion efficiency (PCE) of 14.64%, which is 80.3% higher than the reference cell (8.12% PCE) without optimal perovskite layer. We anticipate that the annealing process with optimal compact TiO2 layer would possibly become a promising method for future industrialization of planar perovskite solar cells.

High efficiency perovskite solar cells: from complex nanostructure to planar heterojunction

2014 ◽  
Vol 2 (17) ◽  
pp. 5994-6003 ◽  
Author(s):  
Ming He ◽  
Dajiang Zheng ◽  
Mengye Wang ◽  
Changjian Lin ◽  
Zhiqun Lin
Keyword(s):  
Solar Cells ◽  
High Efficiency ◽  
Perovskite Solar Cells ◽  
Planar Heterojunction ◽  
Complex Nanostructure

scholarly journals Efficient Ag-Doped Perovskite Solar Cells Fabricated in Ambient Air

Crystals ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 1521
Author(s):  
Jiabin Hao ◽  
Zeming Wang ◽  
Huiying Hao ◽  
Guanlei Wang ◽  
Hongcheng Gao ◽  
...  
Keyword(s):  
Solar Cells ◽  
Spin Coating ◽  
High Efficiency ◽  
Perovskite Solar Cells ◽  
Ambient Air ◽  
Nucleation Density ◽  
Perovskite Material ◽  
Coating Method ◽  
One Step ◽  
Improved Performance

So far, it is still a great challenge to prepare high efficiency organic–inorganic perovskite solar cells in ambient air. Specifically, moisture is easily combined with the perovskite material during the spin-coating process, which result in porous perovskite films with poor surface morphology. In this study, we investigated crystalline Ag-doped perovskite films by a one-step spin-coating method in air with 30–40% relative humidity (RH), in which ethyl acetate (EA) was used as antisolvent can absorb moisture in air to reduced nucleation density. More significantly, EA is a feasible and environmentally friendly solvent to replace highly toxic solvent. Moreover, 1.0% Ag-doped device shows a highest power conversion efficiency (PCE) of 14.36%. The improved performance is not only ascribed to the superior CH3NH3PbI3 film with high crystallinity but to the versatile tunability of energy band structure.

A simple fabrication of high efficiency planar perovskite solar cells: controlled film growth with methylammonium iodide and green antisolvent sec-butyl alcohol

2020 ◽  
Vol 8 (36) ◽  
pp. 12560-12567
Author(s):  
Linlin Qiu ◽  
Lika Dong ◽  
Deqiang Mei ◽  
Wei-Hsiang Chen ◽  
Lixin Song ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Efficiency ◽  
Film Growth ◽  
Perovskite Solar Cells ◽  
Butyl Alcohol ◽  
One Step

Perovskite films can be prepared using sec-butyl alcohol (2-BA) by a one-step antisolvent assisted method.

High efficiency hysteresis-less inverted planar heterojunction perovskite solar cells with a solution-derived NiOxhole contact layer

2015 ◽  
Vol 3 (48) ◽  
pp. 24495-24503 ◽  
Author(s):  
Xingtian Yin ◽  
Meidan Que ◽  
Yonglei Xing ◽  
Wenxiu Que
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
High Efficiency ◽  
Perovskite Solar Cells ◽  
Contact Layer ◽  
Perovskite Solar Cell ◽  
Planar Heterojunction

A solution-derived NiOxfilm was successfully employed to work as the hole selective contact for a high efficiency inverted planar heterojunction perovskite solar cell with negligible hysteresis.

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