scholarly journals Spiro-OMeTAD single crystals: Remarkably enhanced charge-carrier transport via mesoscale ordering

2016 ◽  
Vol 2 (4) ◽  
pp. e1501491 ◽  
Author(s):  
Dong Shi ◽  
Xiang Qin ◽  
Yuan Li ◽  
Yao He ◽  
Cheng Zhong ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Solar Cells ◽  
Charge Carrier ◽  
Single Crystals ◽  
Carrier Transport ◽  
Dye Sensitized Solar Cells ◽  
Hole Transport ◽  
Transport Pathways ◽  
Hole Transporting ◽  
Hole Transporting Material

We report the crystal structure and hole-transport mechanism in spiro-OMeTAD [2,2′,7,7′-tetrakis(N,N-di-p-methoxyphenyl-amine)9,9′-spirobifluorene], the dominant hole-transporting material in perovskite and solid-state dye-sensitized solar cells. Despite spiro-OMeTAD’s paramount role in such devices, its crystal structure was unknown because of highly disordered solution-processed films; the hole-transport pathways remained ill-defined and the charge carrier mobilities were low, posing a major bottleneck for advancing cell efficiencies. We devised an antisolvent crystallization strategy to grow single crystals of spiro-OMeTAD, which allowed us to experimentally elucidate its molecular packing and transport properties. Electronic structure calculations enabled us to map spiro-OMeTAD’s intermolecular charge-hopping pathways. Promisingly, single-crystal mobilities were found to exceed their thin-film counterparts by three orders of magnitude. Our findings underscore mesoscale ordering as a key strategy to achieving breakthroughs in hole-transport material engineering of solar cells.

Towards efficient and stable perovskite solar cells employing non-hygroscopic F4-TCNQ doped TFB as the hole-transporting material

Nanoscale ◽  
2019 ◽  
Vol 11 (41) ◽  
pp. 19586-19594 ◽  
Author(s):  
Hannah Kwon ◽  
Ju Won Lim ◽  
Jinyoung Han ◽  
Li Na Quan ◽  
Dawoon Kim ◽  
...  
Keyword(s):  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Hole Transport ◽  
Transport Layer ◽  
Hole Transport Layer ◽  
Inorganic Perovskite ◽  
Hole Transporting ◽  
Hole Transporting Material

Designing an efficient and stable hole transport layer (HTL) material is one of the essential ways to improve the performance of organic–inorganic perovskite solar cells (PSCs).

scholarly journals Enhanced charge carrier transport in spray-cast organic solar cells using solution processed MoO3 micro arrays

RSC Advances ◽  
2017 ◽  
Vol 7 (6) ◽  
pp. 3059-3065 ◽  
Author(s):  
Ran Ji ◽  
Jiang Cheng ◽  
Xin Yang ◽  
Junsheng Yu ◽  
Lu Li
Keyword(s):  
Solar Cells ◽  
Charge Carrier ◽  
Molybdenum Oxide ◽  
Active Layer ◽  
Organic Solar Cells ◽  
Carrier Transport ◽  
Charge Carrier Transport ◽  
Solution Processed ◽  
Hole Transporting ◽  
Micro Array

A toward all spray fabrication routine was used to fabricate organic solar cells (OSCs), in which a molybdenum oxide (MoO3) micro array was deposited on the active layer. The influence of the hole transporting property on the OSC performance was studied.

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.

High-efficiency dye-sensitized solar cells with molecular copper phenanthroline as solid hole conductor

2015 ◽  
Vol 8 (9) ◽  
pp. 2634-2637 ◽  
Author(s):  
Marina Freitag ◽  
Quentin Daniel ◽  
Meysam Pazoki ◽  
Kári Sveinbjörnsson ◽  
Jinbao Zhang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solid State ◽  
High Efficiency ◽  
Dye Sensitized Solar Cells ◽  
Organic Dye ◽  
Dye Sensitized ◽  
Hole Transporting ◽  
Hole Transporting Material ◽  
Sensitized Solar Cells

Copper phenanthroline is an efficient molecular hole transporting material for solid-state dye-sensitized solar cells. Efficiencies of more than 8% at 1 sun were obtained using LEG4 organic dye.

9.7%-efficient Sb2(S,Se)3 solar cells with a dithieno[3,2-b: 2′,3′-d]pyrrole-cored hole transporting material

2021 ◽  
Author(s):  
Chenhui Jiang ◽  
Jie Zhou ◽  
Rongfeng Tang ◽  
Weitao Lian ◽  
Xiaomin Wang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
High Power ◽  
Carrier Transport ◽  
Power Conversion ◽  
High Power Conversion Efficiency ◽  
Hole Transporting ◽  
Transport Path ◽  
Hole Transporting Material

An efficient device based on the Sb2(S,Se)3/DTPTHMe-ThTPA heterojunction offers an effective approach to engineer the interfacial carrier transport path for high power conversion efficiency.

Infiltration of Spiro-MeOTAD hole transporting material into nanotubular TiO2 electrode for solid-state dye-sensitized solar cells

2014 ◽  
Vol 187 ◽  
pp. 67-74 ◽  
Author(s):  
Oleksandr Kuzmych ◽  
Erik M.J. Johansson ◽  
Kazuteru Nonomura ◽  
Tomas Nyberg ◽  
Magdalena Skompska ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solid State ◽  
Dye Sensitized Solar Cells ◽  
Tio2 Electrode ◽  
Dye Sensitized ◽  
Hole Transporting ◽  
Hole Transporting Material ◽  
Sensitized Solar Cells
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