A new polytriarylamine derivative for dopant-free high-efficiency perovskite solar cells

2019 ◽  
Vol 3 (10) ◽  
pp. 2627-2632 ◽  
Author(s):  
Sergey Tsarev ◽  
Igor K. Yakushchenko ◽  
Sergey Yu Luchkin ◽  
Petr M. Kuznetsov ◽  
Ruslan S. Timerbulatov ◽  
...  
Keyword(s):  
Molecular Structure ◽  
Solar Cells ◽  
High Efficiency ◽  
Power Conversion ◽  
Perovskite Solar Cells ◽  
Conversion Efficiencies

Modification of PTAA molecular structure significantly improves the power conversion efficiencies of dopant-free HTL n–i–p perovskite solar cells.

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.

scholarly journals Oblique Electrostatic Inkjet-Deposited TiO2 Electron Transport Layers for Efficient Planar Perovskite Solar Cells

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Md. Shahiduzzaman ◽  
Toshiharu Sakuma ◽  
Tetsuya Kaneko ◽  
Koji Tomita ◽  
Masao Isomura ◽  
...  
Keyword(s):  
Solar Cells ◽  
Electron Transport ◽  
Surface Coverage ◽  
Low Cost ◽  
Power Conversion ◽  
Perovskite Solar Cells ◽  
Important Advance ◽  
Compact Layer ◽  
Conversion Efficiencies ◽  
First Time

AbstractIn this study, a new, simple, and novel oblique electrostatic inkjet (OEI) technique is developed to deposit a titanium oxide (TiO2) compact layer (CL) on fluorine-doped tin oxide (FTO) substrate without the need for a vacuum environment for the first time. The TiO2 is used as electron transport layers (ETL) in planar perovskite solar cells (PSCs). This bottom-up OEI technique enables the control of the surface morphology and thickness of the TiO2 CL by simply manipulating the coating time. The OEI-fabricated TiO2 is characterized tested and the results are compared with that of TiO2 CLs produced by spin-coating and spray pyrolysis. The OEI-deposited TiO2 CL exhibits satisfactory surface coverage and smooth morphology, conducive for the ETLs in PSCs. The power-conversion efficiencies of PSCs with OEI-deposited TiO2 CL as the ETL were as high as 13.19%. Therefore, the present study provides an important advance in the effort to develop simple, low-cost, and easily scaled-up techniques. OEI may be a new candidate for depositing TiO2 CL ETLs for highly efficient planar PSCs, thus potentially contributing to future mass production.

scholarly journals Alternative electrodes for HTMs and noble-metal-free perovskite solar cells: 2D MXenes electrodes

RSC Advances ◽  
2019 ◽  
Vol 9 (59) ◽  
pp. 34152-34157 ◽  
Author(s):  
Junmei Cao ◽  
Fanning Meng ◽  
Liguo Gao ◽  
Shuzhang Yang ◽  
Yeling Yan ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Noble Metal ◽  
Counter Electrode ◽  
Power Conversion ◽  
Perovskite Solar Cells ◽  
Perovskite Solar Cell ◽  
Metal Free ◽  
Conversion Efficiencies

The 2D Mxene material was successfully used as the counter electrode of the perovskite solar cell and achieved power conversion efficiencies of 13.84%.

scholarly journals A Review on Improving the Quality of Perovskite Films in Perovskite Solar Cells via the Weak Forces Induced by Additives

2019 ◽  
Vol 9 (20) ◽  
pp. 4393 ◽  
Author(s):  
Jien Yang ◽  
Songhua Chen ◽  
Jinjin Xu ◽  
Qiong Zhang ◽  
Hairui Liu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
High Efficiency ◽  
Power Conversion ◽  
Perovskite Solar Cells ◽  
Term Stability ◽  
Long Term Stability ◽  
Weak Forces

Perovskite solar cells (PSCs) employing organic-inorganic halide perovskite as active layers have attracted the interesting of many scientists since 2009. The power conversion efficiency (PCE) have pushed certified 25.2% in 2019 from initial 3.81% in 2009, which is much faster than that of any type of solar cell. In the process of optimization, many innovative approaches to improve the morphology of perovskite films were developed, aiming at elevate the power conversion efficiency of perovskite solar cells (PSCs) as well as long-term stability. In the context of PSCs research, the perovskite precursor solutions modified with different additives have been extensively studied, with remarkable progress in improving the whole performance. In this comprehensive review, we focus on the forces induced by additives between the cations and anions of perovskite precursor, such as hydrogen bonds, coordination or some by-product (e.g., mesophase), which will lead to form intermediate adduct phases and then can be converted into high quality films. A compact uniform perovskite films can not only upgrade the power conversion efficiency (PCE) of devices but also improve the stability of PSCs under ambient conditions. Therefore, strategies for the implementation of additives engineering in perovskites precursor solution will be critical for the future development of PSCs. How to manipulate the weak forces in the fabrication of perovskite film could help to further develop high-efficiency solar cells with long-term stability and enable the potential of future practical applications.

Large active layer thickness toleration of high-efficiency small molecule solar cells

2015 ◽  
Vol 3 (44) ◽  
pp. 22274-22279 ◽  
Author(s):  
Qian Zhang ◽  
Bin Kan ◽  
Xiangjian Wan ◽  
Hua Zhang ◽  
Feng Liu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Layer Thickness ◽  
Active Layer ◽  
Small Molecule ◽  
High Efficiency ◽  
Power Conversion ◽  
Photovoltaic Performance ◽  
Thickness Dependence ◽  
Active Layer Thickness ◽  
Conversion Efficiencies

The thickness dependence of the photovoltaic performance for devices based on the small molecule DR3TSBDT:PC71BM was systematically investigated and the power conversion efficiencies are found to be relatively insensitive to the thickness.

Bismuth-Antimony mixed double perovskites Cs2AgBi1-xSbxBr6 in solar cells

MRS Advances ◽  
2019 ◽  
Vol 4 (64) ◽  
pp. 3545-3552
Author(s):  
Martina Pantaler ◽  
Selina Olthof ◽  
Klaus Meerholz ◽  
Doru C. Lupascu
Keyword(s):  
Solar Cells ◽  
High Efficiency ◽  
Perovskite Solar Cells ◽  
Double Perovskite ◽  
Mixed System ◽  
Double Perovskites ◽  
Solar Cell Performance ◽  
Absorber Material ◽  
Bismuth Antimony ◽  
Conversion Efficiencies

AbstractReported conversion efficiencies of lead based perovskite solar cells keep increasing steadily. But next to the demand for high efficiency, the need for analogue non-toxic material systems remains. One promising lead free absorber material is the double perovskite Cs2AgBiBr6. Interest in this and other double perovskites has been increasing in the last three years and several solar cells using different device structures have been reported. However, the efficiency of these solar cells is merely in the range of 2%. To further improve solar cell performance we prepared mixed bismuth-antimony double perovskite Cs2AgBi1-xSbxBr6 where different fractions of antimony (x=0.125, 0.25, 0.375, 0.50) are used. This was motivated by reports of lower bandgap values in these mixed system. After the optimization of preparation of these thin films, we have carefully analysed the effects on the structure, composition, electronic structure, as well as optical properties. Finally, we have fabricated Bi-Sb mixed double perovskite solar cells in a mesoscopic device architecture.

scholarly journals Triple-cation low-bandgap perovskite thin-films for high-efficiency four-terminal all-perovskite tandem solar cells

2020 ◽  
Vol 8 (46) ◽  
pp. 24608-24619 ◽  
Author(s):  
Somayeh Moghadamzadeh ◽  
Ihteaz M. Hossain ◽  
The Duong ◽  
Saba Gharibzadeh ◽  
Tobias Abzieher ◽  
...  
Keyword(s):  
Thin Films ◽  
Solar Cells ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
High Efficiency ◽  
Power Conversion ◽  
Perovskite Solar Cells ◽  
Tandem Solar Cells ◽  
Low Bandgap ◽  
Photo Stability

Incorporating 2.5% Cs in FA0.8MA0.2Sn0.5Pb0.5I3 improves the photo-stability of the low-bandgap perovskite solar cells. The champion device with power conversion efficiency of 18.9% maintain 92% of its initial efficiency after 120 min MPP tracking.

Efficient planar-heterojunction perovskite solar cells achieved via interfacial modification of a sol–gel ZnO electron collection layer

2014 ◽  
Vol 2 (41) ◽  
pp. 17291-17296 ◽  
Author(s):  
Junghwan Kim ◽  
Geunjin Kim ◽  
Tae Kyun Kim ◽  
Sooncheol Kwon ◽  
Hyungcheol Back ◽  
...  
Keyword(s):  
Solar Cells ◽  
Power Conversion ◽  
Sol Gel ◽  
Perovskite Solar Cells ◽  
Interfacial Engineering ◽  
Electron Collection ◽  
Interfacial Modification ◽  
New Strategy ◽  
Planar Heterojunction ◽  
Conversion Efficiencies

The importance of interfacial engineering as a new strategy for improving the power conversion efficiencies (PCEs) of planar-heterojunction (PHJ) perovskite solar cells is highlighted by incorporating sol–gel ZnO modified with PCBM.

scholarly journals P‐Dopant: LiTFSI‐Free Spiro‐OMeTAD‐Based Perovskite Solar Cells with Power Conversion Efficiencies Exceeding 19% (Adv. Energy Mater. 32/2019)

2019 ◽  
Vol 9 (32) ◽  
pp. 1970123
Author(s):  
Boer Tan ◽  
Sonia R. Raga ◽  
Anthony S. R. Chesman ◽  
Sebastian O. Fürer ◽  
Fei Zheng ◽  
...  
Keyword(s):  
Solar Cells ◽  
Power Conversion ◽  
Perovskite Solar Cells ◽  
Conversion Efficiencies ◽  
Energy Mater
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