Dual-function ionic liquid enhances perovskite crystal in perovskite solar cells. Author links open overlay panel Dufeng Li a b, Yunjuan Niu b, Zhiqian Yang b, Qin Li a, Zhengguo Zhang c, Linhua ... Perovskite solar cells (PSCs) have made significant progress in terms of power conversion efficiency (PCE), but there is still potential for ...
The higher phase transition temperature together with the ordered liquid crystalline texture of BTR-Cl imply higher order of molecule aggregation, which is …
A liquid crystal small molecule donor BTR-Cl, which has strong self-assembly and crystallinity, is used as the third component to construct nonfullerenes ternary solar …
Hexakis(hexyloxy)triphenylene (HAT6) discotic liquid crystal is employed as a transparent hole-transporting material (HTM) for perovskite solar cells (PSCs) and a power conversion efficiency (PCE) of 15.7% is obtained, which is the highest using HAT6 type of HTMs. ...
Recently, liquid crystal (LC) materials have been reported as novel small-molecule semiconductors for thin-film optoelectronic applications, including organic thin-film transistors, solution-processed bulk-heterojunction …
"The liquid crystal strategy helps address a critical issue in the scale-up of perovskite solar cells, which demonstrates the potential for more efficient and stable solar energy generation on a larger scale, making it more robust for …
The performance of a prototype opaque-type colored silicon-based solar cell integrated with liquid crystalline cholesteric layers is investigated. These devices were developed using only organic …
To address this issue, we propose a composite interface modification layer incorporating the discotic liquid crystal 2,3,6,7,10,11-hexa(pentoxy)triphenylene (HAT5) into o-F-PEAI. The triphenyl core in HAT5 promotes π-π stacking self-assembly and enhances its interaction with o-F-PEAI, forming an oriented columnar phase that improves hole …
A liquid crystal small molecule donor BTR-Cl, which has strong self-assembly and crystallinity, is used as the third component to construct nonfullerenes ternary solar cells together with a broad-band donor polymer D18-Cl and a low-band acceptor N3. The introduction of BTR-Cl enhances the morphology, exciton dissociation, and charge …
Discotic Liquid Crystals In article number 2000047, Jian-Qiang Liu, Chao-Chao Qin, Xiao-Tao Hao, ... and the active layer in organic solar cells. This method achieves 3D charge transportation and higher mobility. …
used in bilayer solar cells, bulk heterojunction solar cells and dye-sensitized solar cells have been given. All the liquid crystalline materials used in PVs are structured and the efficiency of ...
Herein, a liquid crystal material, BTR, was elaborately selected as the third component to complement PTB7-Th for the fabrication of highly efficient ternary polymer solar cells (PSCs). Via incorporating 10 wt% BTR in their donors, the champion power conversion efficiency (PCE) of the PSCs increased from 10.
Hexakis(hexyloxy)triphenylene (HAT6) discotic liquid crystal is employed as a transparent hole-transporting material (HTM) for perovskite solar cells …
Now a group of researchers has incorporated liquid crystals into the devices, producing a version that works at up to 120 C, the highest reported working temperature for such solar cells (Chem ...
Although the power conversion efficiency of perovskite solar cells (PSCs) has reached 25.7%, there is still great potential for improvement in their performance and stability. In the past few years, ionic liquids (ILs) have been extensively investigated and demonstrated ...
Programmable liquid crystal elastomers. A new type of liquid crystal elastomer (LCE) has been developed at the United States Air Force Research Laboratory.[Citation 3] The material is capable of changing from a flat sheet into a 3D structure upon application of heat. Crucially, the 3D shape is programmed into the …
Hexakis(hexyloxy)triphenylene (HAT6) discotic liquid crystal is employed as a transparent hole-transporting material (HTM) for perovskite solar cells (PSCs) and a power conversion efficiency (PCE) of 15.7% is obtained, which is the highest using HAT6 type of HTMs spite lower PCE than spiro-OMeTAD-based devices (20.3%), the PSCs …
The performance of a prototype opaque-type colored silicon-based solar cell integrated with liquid crystalline cholesteric layers is investigated. These devices were developed using only organic components and wet processes, without complicated vacuum processes. The evaluated performances of the prototype solar cells were inferior to …
"The liquid crystal strategy helps address a critical issue in the scale-up of perovskite solar cells, which demonstrates the potential for more efficient and stable solar energy generation on a larger scale, making it more robust for real-world applications," said Yi Yang, a postdoctoral fellow in the research groups of Professors Ted ...
Solution-processed small molecule solar cells (SMSCs) are fabricated based on DRCN5T:PC 71 BM as active layers, the power conversion efficiency (PCE) is markedly increased from 3.63% to 9.11% for the active layers undergoing up-side-down thermal annealing and solvent vapor annealing post-treatments. The PCE improvement should be …
We find that thermotropic liquid crystals such as 3,4,5-trifluoro-4′-(trans-4-propylcyclohexyl)biphenyl enable large-area perovskite films that are uniform, low in …
The bottom interface between perovskite and electron-transporting layer is critical for realizing efficient flexible perovskite solar cells. Here, the authors intercalate liquid crystal elastomer interlayer for aligned mesogenic assembly and achieve maximum efficiency of 23.26% with T _80 over 1570 h. In a flexible perovskite solar cell, the bottom interface …
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