Carbon nanotubes to outperform metal electrodes in perovskite solar cells via dopant engineering and hole-selectivity enhancement

2020 ◽  
Vol 8 (22) ◽  
pp. 11141-11147 ◽  
Author(s):  
Il Jeon ◽  
Ahmed Shawky ◽  
Seungju Seo ◽  
Yang Qian ◽  
Anton Anisimov ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Solar Cells ◽  
Carbon Nanotube ◽  
Perovskite Solar Cells ◽  
Metal Electrode ◽  
Doping Effect ◽  
Triflic Acid ◽  
Metal Electrodes ◽  
Apolar Solvent

Triflic acid dispersed in an apolar solvent exhibited a superior doping effect and stability on carbon nanotube electrodes. The carbon nanotube electrode-based perovskite solar cells exceeded the metal electrode-based counterpart in terms of efficiency.

Characterization of Contact Resistance between Carbon Nanotubes Film and Metal Electrodes

2013 ◽  
Vol 683 ◽  
pp. 238-241
Author(s):  
Ki Bong Han ◽  
Yong Ho Choi
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Nanotube ◽  
Contact Resistance ◽  
Chemical Properties ◽  
Metal Electrode ◽  
Metal Contacts ◽  
Metal Electrodes ◽  
3 Dimensional ◽  
Current Path ◽  
Classical Technique

Carbon nanotube has attracted great research attentions due to its outstanding electrical, physical, mechanical, chemical properties. Based on its excellent properties, the carbon nanotube is promising nanoscale material for novel electrical, mechanical, chemical, and biological devices and sensors. However, it is very difficult to control the structure of carbon nanotube during synthesis. A carbon nanotubes film has 3 dimensional structures of interwoven carbon nanotubes as well as unique properties such as transparency, flexibility and good electrical conductivity. More importantly, the properties of carbon nanotubes are ensemble averaged in this formation. In this research, we study the contact resistance between carbon nanotubes film and metal electrode. For most of electrical devices using carbon nanotubes film, it is necessary to have metal electrodes on the film for current path. A resistance at the contact lowers the electrical efficiencies of the devices. Therefore, it is important to measure and characterize the contact resistance and lower it for better efficiencies. The device demonstrated in this study using classical technique for metal contacts provides relatively reliable contact resistance measurements for carbon nanotubes film applications.

Enhancing the grain size of organic halide perovskites by sulfonate-carbon nanotube incorporation in high performance perovskite solar cells

2016 ◽  
Vol 52 (33) ◽  
pp. 5674-5677 ◽  
Author(s):  
Yong Zhang ◽  
Licheng Tan ◽  
Qingxia Fu ◽  
Lie Chen ◽  
Ting Ji ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Grain Size ◽  
Solar Cells ◽  
Carbon Nanotube ◽  
Grain Boundary ◽  
High Performance ◽  
Perovskite Solar Cells ◽  
Organic Halide ◽  
Halide Perovskites

Perovskite films with enhanced grain size and reduced grain boundary were obtained with the incorporation of sulfonate-carbon nanotubes.

Cross-stacked superaligned carbon nanotube electrodes for efficient hole conductor-free perovskite solar cells

2016 ◽  
Vol 4 (15) ◽  
pp. 5569-5577 ◽  
Author(s):  
Qiang Luo ◽  
He Ma ◽  
Ye Zhang ◽  
Xuewen Yin ◽  
ZhiBo Yao ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Solar Cells ◽  
Carbon Nanotube ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Power Conversion ◽  
Perovskite Solar Cells

Perovskite solar cells fabricated with cross-stacked carbon nanotubes achieve a power conversion efficiency of 8.65% and over 10.5% by doping the carbon nanotubes with iodine.

Laminated Carbon Nanotube Networks for Metal Electrode-Free Efficient Perovskite Solar Cells

ACS Nano ◽  
2014 ◽  
Vol 8 (7) ◽  
pp. 6797-6804 ◽  
Author(s):  
Zhen Li ◽  
Sneha A. Kulkarni ◽  
Pablo P. Boix ◽  
Enzheng Shi ◽  
Anyuan Cao ◽  
...  
Keyword(s):  
Solar Cells ◽  
Carbon Nanotube ◽  
Perovskite Solar Cells ◽  
Metal Electrode ◽  
Carbon Nanotube Networks

scholarly journals Transparent Ultrathin Metal Electrode with Microcavity Configuration for Highly Efficient TCO-Free Perovskite Solar Cells

Materials ◽  
2020 ◽  
Vol 13 (10) ◽  
pp. 2328
Author(s):  
Fengqin He ◽  
Hailong You ◽  
Xueyi Li ◽  
Dazheng Chen ◽  
Shangzheng Pang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Indium Tin Oxide ◽  
Perovskite Solar Cells ◽  
Metal Electrode ◽  
Metal Electrodes ◽  
Research Attention ◽  
Optical Microcavity ◽  
Highly Efficient ◽  
Ag Film ◽  
Conventional Device

Optical microcavity configuration is one optical strategy to enhance light trapping in devices using planar electrodes. In this work, the potential application of optical microcavity configuration with ultrathin metal electrodes in highly efficient perovskite solar cells (PSCs) was investigated. By comparing with the device with conventional indium-tin-oxide (ITO) electrodes, it is shown that by carefully designing the Ag/dielectric planar electrode, a device with an optical microcavity structure can achieve comparable—or even higher—power conversion efficiency than a conventional device. Moreover, there is a relative high tolerance for the Ag film thickness in the optical microcavity structure. When the thickness of the Ag film is increased from 8 to 12 nm, the device still can attain the performance level of a conventional device. This gives a process tolerance to fabricate devices with an optical microcavity structure and reduces process difficulty. This work indicates the great application potential of optical microcavities with ultrathin metal electrodes in PSCs; more research attention should be paid in this field.

Suppressed Interdiffusion and Degradation in Flexible and Transparent Metal Electrode-Based Perovskite Solar Cells with a Graphene Interlayer

Nano Letters ◽  
2020 ◽  
Vol 20 (5) ◽  
pp. 3718-3727 ◽  
Author(s):  
Gyujeong Jeong ◽  
Donghwan Koo ◽  
Jihyung Seo ◽  
Seungon Jung ◽  
Yunseong Choi ◽  
...  
Keyword(s):  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Metal Electrode

scholarly journals Chemical anti-corrosion strategy for stable inverted perovskite solar cells

2020 ◽  
Vol 6 (51) ◽  
pp. eabd1580
Author(s):  
Xiaodong Li ◽  
Sheng Fu ◽  
Wenxiao Zhang ◽  
Shanzhe Ke ◽  
Weijie Song ◽  
...  
Keyword(s):  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Electrochemical Corrosion ◽  
Metal Electrodes ◽  
Maximum Power Point ◽  
Perovskite Layer ◽  
Point Tracking ◽  
Power Point Tracking ◽  
Organic Corrosion Inhibitor ◽  
Power Point

One big challenge for long-lived inverted perovskite solar cells (PSCs) is that commonly used metal electrodes react with perovskite layer, inducing electrode corrosion and device degradation. Motivated by the idea of metal anticorrosion, here, we propose a chemical anticorrosion strategy to fabricate stable inverted PSCs through introducing a typical organic corrosion inhibitor of benzotriazole (BTA) before Cu electrode deposition. BTA molecules chemically coordinate to the Cu electrode and form an insoluble and polymeric film of [BTA-Cu], suppressing the electrochemical corrosion and reaction between perovskite and the Cu electrode. PSCs with BTA/Cu show excellent air stability, retaining 92.8 ± 1.9% of initial efficiency after aging for 2500 hours. In addition, >90% of initial efficiency is retained after 85°C aging for over 1000 hours. PSCs with BTA/Cu also exhibit good operational stability, and 88.6 ± 2.6% of initial efficiency is retained after continuous maximum power point tracking for 1000 hours.

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