High charge mobility polymers based on a new di(thiophen-2-yl)thieno[3,2-b]thiophene for transistors and solar cells

2015 ◽  
Vol 6 (44) ◽  
pp. 7684-7692 ◽  
Author(s):  
Lie Chen ◽  
Feiyan Wu ◽  
Zhiqiang Deng ◽  
Linlin Feng ◽  
Pengcheng Gu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Hole Mobility ◽  
Random Copolymer ◽  
Charge Mobility ◽  
High Charge

A novel random copolymer of di(thiophen-2-yl)thieno[3,2-b]thiophene (DTTT) with DPP achieved a high hole mobility of 0.627 cm2 V−1 s−1.

scholarly journals Progress on the Synthesis and Application of CuSCN Inorganic Hole Transport Material in Perovskite Solar Cells

Materials ◽  
2018 ◽  
Vol 11 (12) ◽  
pp. 2592 ◽  
Author(s):  
Funeka Matebese ◽  
Raymond Taziwa ◽  
Dorcas Mutukwa
Keyword(s):  
Solar Cells ◽  
Energy Levels ◽  
Perovskite Solar Cells ◽  
Hole Mobility ◽  
Cost Effective ◽  
Vital Role ◽  
Hole Transport ◽  
Recombination Processes ◽  
Short Synthesis ◽  
P Type

P-type wide bandgap semiconductor materials such as CuI, NiO, Cu2O and CuSCN are currently undergoing intense research as viable alternative hole transport materials (HTMs) to the spiro-OMeTAD in perovskite solar cells (PSCs). Despite 23.3% efficiency of PSCs, there are still a number of issues in addition to the toxicology of Pb such as instability and high-cost of the current HTM that needs to be urgently addressed. To that end, copper thiocyanate (CuSCN) HTMs in addition to robustness have high stability, high hole mobility, and suitable energy levels as compared to spiro-OMeTAD HTM. CuSCN HTM layer use affordable materials, require short synthesis routes, require simple synthetic techniques such as spin-coating and doctor-blading, thus offer a viable way of developing cost-effective PSCs. HTMs play a vital role in PSCs as they can enhance the performance of a device by reducing charge recombination processes. In this review paper, we report on the current progress of CuSCN HTMs that have been reported to date in PSCs. CuSCN HTMs have shown enhanced stability when exposed to weather elements as the solar devices retained their initial efficiency by a greater percentage. The efficiency reported to date is greater than 20% and has a potential of increasing, as well as maintaining thermal stability.

2,6-Bis[2-(4-pentylphenyl)vinyl]anthracene:  A Stable and High Charge Mobility Organic Semiconductor with Densely Packed Crystal Structure

2006 ◽  
Vol 128 (29) ◽  
pp. 9304-9305 ◽  
Author(s):  
Hong Meng ◽  
Fangping Sun ◽  
Marc B. Goldfinger ◽  
Feng Gao ◽  
David J. Londono ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Organic Semiconductor ◽  
Charge Mobility ◽  
High Charge

scholarly journals D–π–D molecular semiconductors for perovskite solar cells: the superior role of helical versus planar π-linkers

2020 ◽  
Vol 11 (13) ◽  
pp. 3418-3426 ◽  
Author(s):  
Niansheng Xu ◽  
Aibin Zheng ◽  
Yuefang Wei ◽  
Yi Yuan ◽  
Jing Zhang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Hole Mobility ◽  
Molecular Aggregates ◽  
Large Domain ◽  
Π Stacking ◽  
Molecular Semiconductor ◽  
Molecular Semiconductors

A thia[5]helicene based molecular semiconductor maintains π–π stacking, ensuring a large domain of molecular aggregates and a high hole mobility.

A Unique Blend of 2‐Fluorenyl‐2‐anthracene and 2‐Anthryl‐2‐anthracence Showing White Emission and High Charge Mobility

2016 ◽  
Vol 129 (3) ◽  
pp. 740-745 ◽  
Author(s):  
Mengyun Chen ◽  
Yang Zhao ◽  
Lijia Yan ◽  
Shuai Yang ◽  
Yanan Zhu ◽  
...  
Keyword(s):  
Charge Mobility ◽  
High Charge ◽  
White Emission

Simple furan-based polymers featuring self-healing function enable efficient eco-friendly organic solar cells with high stability

2021 ◽  
Author(s):  
Shangwen Lu ◽  
Shengchun Qu ◽  
Yingying Deng ◽  
Yueyue Gao ◽  
Gentian Yue ◽  
...  
Keyword(s):  
Dielectric Constant ◽  
Solar Cells ◽  
Organic Solar Cells ◽  
High Stability ◽  
Hole Mobility ◽  
Side Chains ◽  
Self Healing ◽  
Good Solubility ◽  
Large Dielectric Constant ◽  
Oligoethylene Glycol

Herein, two simple furan-based polymers PFO3 and PFO4 grafting oligoethylene glycol (OEG) side chains are developed. PFO3 and PFO4 feature high hole mobility, large dielectric constant and good solubility. Compared...

scholarly journals The Performance Improvement of Using Hole Transport Layer with Lithium and Cobalt for Inverted Planar Perovskite Solar Cell

Coatings ◽  
2020 ◽  
Vol 10 (4) ◽  
pp. 354
Author(s):  
Shaoxi Wang ◽  
He Guan ◽  
Yue Yin ◽  
Chunfu Zhang
Keyword(s):  
Solar Cells ◽  
Short Circuit ◽  
Perovskite Solar Cells ◽  
Hole Mobility ◽  
Short Circuit Current ◽  
Short Circuit Current Density ◽  
Hole Transport ◽  
Transport Layer ◽  
Hole Transport Layer ◽  
Planar Heterojunction

With the continuous development of solar cells, the perovskite solar cells (PSCs), whose hole transport layer plays a vital part in collection of photogenerated carriers, have been studied by many researchers. Interface transport layers are important for efficiency and stability enhancement. In this paper, we demonstrated that lithium (Li) and cobalt (Co) codoped in the novel inorganic hole transport layer named NiOx, which were deposited onto ITO substrates via solution methods at room temperature, can greatly enhance performance based on inverted structures of planar heterojunction PSCs. Compared to the pristine NiOx films, doping a certain amount of Li and Co can increase optical transparency, work function, electrical conductivity and hole mobility of NiOx film. Furthermore, experimental results certified that coating CH3NH3PbIxCl3−x perovskite films on Li and Co- NiOx electrode interlayer film can improve chemical stability and absorbing ability of sunlight than the pristine NiOx. Consequently, the power conversion efficiency (PCE) of PSCs has a great improvement from 14.1% to 18.7% when codoped with 10% Li and 5% Co in NiOx. Moreover, the short-circuit current density (Jsc) was increased from 20.09 mA/cm2 to 21.7 mA/cm2 and the fill factor (FF) was enhanced from 0.70 to 0.75 for the PSCs. The experiment results demonstrated that the Li and Co codoped NiOx can be a effective dopant to improve the performance of the PSCs.

Incorporation of two electron acceptors to improve the electron mobility and stability of perovskite solar cells

2019 ◽  
Vol 7 (27) ◽  
pp. 8344-8349 ◽  
Author(s):  
Xianglan Tang ◽  
Shuqin Xiao ◽  
Qingxia Fu ◽  
Yiwang Chen ◽  
Ting Hu
Keyword(s):  
Solar Cells ◽  
Electron Mobility ◽  
Perovskite Solar Cells ◽  
Electron Acceptors ◽  
Charge Mobility ◽  
Device Stability

A PCBM:ITIC mixture interlayer was formed on perovskite to improve charge mobility and device stability.

Effect of double bond conjugation on hole mobility of thiophene-based hole transport materials in perovskite solar cells

2020 ◽  
Vol 240 ◽  
pp. 122058 ◽  
Author(s):  
Jiaren Guo ◽  
Yan Zhang ◽  
Wanlin Cai ◽  
Zemin Zhang ◽  
Rongxing He ◽  
...  
Keyword(s):  
Solar Cells ◽  
Double Bond ◽  
Perovskite Solar Cells ◽  
Hole Mobility ◽  
Hole Transport
Sign in / Sign up

Export Citation Format

Share Document