scholarly journals Novel Anthracene HTM Containing TIPs for Perovskite Solar Cells

Processes ◽  
2021 ◽  
Vol 9 (12) ◽  
pp. 2249
Author(s):  
Sanghyun Paek
Keyword(s):  
Solar Cells ◽  
High Performance ◽  
Perovskite Solar Cells ◽  
Hole Transport ◽  
Long Term Stability ◽  
Photovoltaic Conversion Efficiency ◽  
Hole Transporting ◽  
Hole Transporting Material ◽  
Hole Transporting Materials

Recently, perovskite solar cells have been in the spotlight due to several of their advantages. Among the components of PSCs, hole transporting materials (HTMs) re the most important factors for achieving high performance and a stable device. Here, we introduce a new D–π–D type hole transporting material incorporating Tips-anthracene as a π–conjugation part and dimethoxy-triphenylamine as a donor part (which can be easily synthesized using commercially available materials). Through the measurement of various optical properties, the new HTM not only has an appropriate energy level but also has excellent hole transport capability. The device with PEH-16 has a photovoltaic conversion efficiency of 17.1% under standard one sun illumination with negligible hysteresis, which can be compared to a device using Spiro_OMeTAD under the same conditions. Ambient stability for 1200 h shown that 98% of PEH-16 device from the initial PCE was retained, indicating that the devices had good long-term stability.

Long-Term Stability of the Oxidized Hole-Transporting Materials used in Perovskite Solar Cells

2018 ◽  
Vol 24 (39) ◽  
pp. 9910-9918 ◽  
Author(s):  
Ernestas Kasparavicius ◽  
Artiom Magomedov ◽  
Tadas Malinauskas ◽  
Vytautas Getautis
Keyword(s):  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Term Stability ◽  
Long Term Stability ◽  
Hole Transporting ◽  
Materials Used ◽  
Hole Transporting Materials

scholarly journals Development of simple hole-transporting materials for perovskite solar cells

2016 ◽  
Vol 94 (4) ◽  
pp. 352-359 ◽  
Author(s):  
Andrew M. Namespetra ◽  
Arthur D. Hendsbee ◽  
Gregory C. Welch ◽  
Ian G. Hill
Keyword(s):  
Solar Cells ◽  
High Performance ◽  
Low Cost ◽  
Perovskite Solar Cells ◽  
Hole Transporting ◽  
Insulating Polymers ◽  
Hole Transporting Material ◽  
Surface Morphologies ◽  
Highest Occupied Molecular Orbitals ◽  
Hole Transporting Materials

Three low-cost propeller-shaped small molecules based on a triphenylamine core and the high-performance donor molecule 7,7′-[4,4-bis(2-ethylhexyl)-4H-silolo[3,2-b:4,5-b′]dithiophene-2,6-diyl]bis[6-fluoro-4-(5′-hexyl-[2,2′-bithiophen]-5-yl)benzo[c][1,2,5]thiadiazole] (DTS(FBTTh2)2) were investigated as hole-transporting materials in perovskite solar cells. Each hole-transporting material was designed with highly modular side arms, allowing for different bandgaps and thin-film properties while maintaining a consistent binding energy of the highest occupied molecular orbitals to facilitate hole extraction from the perovskite active layer. Perovskite solar cell devices were fabricated with each of the three triphenylamine-based hole-transporting materials and DTS(FBTTh2)2 and were compared to devices with 2,2′,7,7′-tetrakis(N,N-di-p-methoxyphenylamine)-9,9′-spirobifluorene (spiro-OMeTAD) hole-transporting layers. Each of our triphenylamine hole-transporting materials and DTS(FBTTh2)2 displayed surface morphologies that were considerably rougher than that of spiro-OMeTAD; a factor that may contribute to lower device performance. It was found that using inert, insulating polymers as additives with DTS(FBTTh2)2 reduced the surface roughness, resulting in devices with higher photocurrents.

Pyridination of hole transporting material in perovskite solar cells questions the long-term stability

2018 ◽  
Vol 6 (33) ◽  
pp. 8874-8878 ◽  
Author(s):  
Artiom Magomedov ◽  
Ernestas Kasparavičius ◽  
Kasparas Rakstys ◽  
Sanghyun Paek ◽  
Natalia Gasilova ◽  
...  
Keyword(s):  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Degradation Pathway ◽  
Term Stability ◽  
Long Term Stability ◽  
Hole Transporting ◽  
Hole Transporting Material

Interaction of the hole transporting material with tert-butylpyridine as a possible degradation pathway of perovskite solar cells.

scholarly journals Pyridine Bridging Diphenylamine-Carbazole with Linking Topology as Rational Hole Transporter for Perovskite Solar Cells Fabrication

2020 ◽  
Author(s):  
Peng Huang ◽  
Manju ◽  
Samrana Kazim ◽  
Gangala Sivakumar ◽  
Manuel Salado ◽  
...  
Keyword(s):  
Solar Cells ◽  
Small Molecules ◽  
High Performance ◽  
Perovskite Solar Cells ◽  
Cost Effective ◽  
Photovoltaic Properties ◽  
Long Term Stability ◽  
Film Forming ◽  
Hole Transporting

<p>Developing cost-effective and rational hole transporting materials is critical for fabricating high-performance perovskite solar cells (PSCs) and to promote their commercial endeavor. We have designed and developed pyridine (core) bridging diphenylamine-substituted carbazole (arm) small molecules, named as <b>2,6PyDANCBZ </b>and <b>3,5PyDANCBZ</b>. The linking topology of core and arm on their photophysical, thermal, semiconducting and photovoltaic properties were probed systematically. We found that the <b>2,6PyDANCBZ </b>shows higher mobility and conductivity along with uniform film-forming ability as compared to <b>3,5PyDANCBZ</b>. The PSCs fabricated with <b>2,6PyDANCBZ </b>supersede the performance delivered by Spiro-OMeTAD, and importantly also gave improved long-term stability. Our findings put forward small molecules based on core-arm linking topology for cost-effective hole selective layers designing.</p>

scholarly journals Polymeric Dopant-Free Hole Transporting Materials for Perovskite Solar Cells: Structures and Concepts towards Better Performances

Polymers ◽  
2021 ◽  
Vol 13 (10) ◽  
pp. 1652
Author(s):  
Mohamed M. H. Desoky ◽  
Matteo Bonomo ◽  
Nadia Barbero ◽  
Guido Viscardi ◽  
Claudia Barolo ◽  
...  
Keyword(s):  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Hole Mobility ◽  
Building Blocks ◽  
Free Hole ◽  
Long Term Stability ◽  
Donor And Acceptor ◽  
Hole Transporting ◽  
Hole Transporting Material

Perovskite solar cells are a hot topic of photovoltaic research, reaching, in few years, an impressive efficiency (25.5%), but their long-term stability still needs to be addressed for industrial production. One of the most sizeable reasons for instability is the doping of the Hole Transporting Material (HTM), being the salt commonly employed as a vector bringing moisture in contact with perovskite film and destroying it. With this respect, the research focused on new and stable “dopant-free” HTMs, which are inherently conductive, being able to effectively work without any addition of dopants. Notwithstanding, they show impressive efficiency and stability results. The dopant-free polymers, often made of alternated donor and acceptor cores, have properties, namely the filming ability, the molecular weight tunability, the stacking and packing peculiarities, and high hole mobility in absence of any dopant, that make them very attractive and a real innovation in the field. In this review, we tried our best to collect all the dopant-free polymeric HTMs known so far in the perovskite solar cells field, providing a brief historical introduction, followed by the classification and analysis of the polymeric structures, based on their building blocks, trying to find structure–activity relationships whenever possible. The research is still increasing and a very simple polymer (PFDT–2F–COOH) approaches PCE = 22% while some more complex ones overcome 22%, up to 22.41% (PPY2).

Improving the Long‐Term Stability of Doped Spiro‐Type Hole‐Transporting Materials in Planar Perovskite Solar Cells

Solar RRL ◽  
2021 ◽  
Author(s):  
Javier Urieta-Mora ◽  
Inés García-Benito ◽  
Luis A. Illicachi ◽  
Joaquín Calbo ◽  
Juan Aragó ◽  
...  
Keyword(s):  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Term Stability ◽  
Long Term Stability ◽  
Hole Transporting ◽  
Hole Transporting Materials

Graphene oxide as an efficient hole-transporting material for high-performance perovskite solar cells with enhanced stability

2017 ◽  
Vol 5 (20) ◽  
pp. 9852-9858 ◽  
Author(s):  
Qing-Dan Yang‡ ◽  
Jia Li ◽  
Yuanhang Cheng ◽  
Ho-Wa Li ◽  
Zhiqiang Guan ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Solar Cells ◽  
High Performance ◽  
Room Temperature ◽  
Perovskite Solar Cells ◽  
Simple Solution ◽  
Hole Transporting ◽  
Hole Transporting Material ◽  
Hole Transporting Materials ◽  
Enhanced Stability

We demonstrated highly efficient and stable perovskite solar cells with a simple solution and room temperature-processed GO as hole-transporting materials.

scholarly journals Pyridine Bridging Diphenylamine-Carbazole with Linking Topology as Rational Hole Transporter for Perovskite Solar Cells Fabrication

2020 ◽  
Author(s):  
Peng Huang ◽  
Manju ◽  
Samrana Kazim ◽  
Gangala Sivakumar ◽  
Manuel Salado ◽  
...  
Keyword(s):  
Solar Cells ◽  
Small Molecules ◽  
High Performance ◽  
Perovskite Solar Cells ◽  
Cost Effective ◽  
Photovoltaic Properties ◽  
Long Term Stability ◽  
Film Forming ◽  
Hole Transporting

<p>Developing cost-effective and rational hole transporting materials is critical for fabricating high-performance perovskite solar cells (PSCs) and to promote their commercial endeavor. We have designed and developed pyridine (core) bridging diphenylamine-substituted carbazole (arm) small molecules, named as <b>2,6PyDANCBZ </b>and <b>3,5PyDANCBZ</b>. The linking topology of core and arm on their photophysical, thermal, semiconducting and photovoltaic properties were probed systematically. We found that the <b>2,6PyDANCBZ </b>shows higher mobility and conductivity along with uniform film-forming ability as compared to <b>3,5PyDANCBZ</b>. The PSCs fabricated with <b>2,6PyDANCBZ </b>supersede the performance delivered by Spiro-OMeTAD, and importantly also gave improved long-term stability. Our findings put forward small molecules based on core-arm linking topology for cost-effective hole selective layers designing.</p>

Star-shaped cyclopentadithiophene-based dopant-free hole-transporting material for high-performance perovskite solar cells

2021 ◽  
Author(s):  
Kun-Mu Lee ◽  
Jui-Yu Yang ◽  
Ping-Sheng Lai ◽  
Ke-Jyun Luo ◽  
Ting Yu Yang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Small Molecule ◽  
High Performance ◽  
Perovskite Solar Cells ◽  
Free Hole ◽  
Hole Transporting ◽  
Hole Transporting Material

A new cyclopentadithiophene (CPDT)-based organic small molecule serves as an efficient dopant-free hole transporting material (HTM) for perovskite solar cells (PSCs). Upon incorporation of two carbazole groups, the resulting CPDT-based...

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