scholarly journals Dopant-Free π-Conjugated Hole Transport Materials for Highly Stable and Efficient Perovskite Solar Cells

2021 ◽  
Vol 9 ◽  
Author(s):  
Zhifeng Deng ◽  
Shuaiwei Cui ◽  
Kaichang Kou ◽  
Dongxu Liang ◽  
Xin Shi ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Performance ◽  
High Efficiency ◽  
Molecular Design ◽  
Perovskite Solar Cells ◽  
Hole Mobility ◽  
Hole Transport ◽  
Free Hole ◽  
Hygroscopic Properties ◽  
Hybrid Perovskite

Current high-efficiency hybrid perovskite solar cells (PSCs) have been fabricated with doped hole transfer material (HTM), which has shown short-term stability. Doping applied in HTMs for PSCs can enhance the hole mobility and PSCs' power conversion efficiency, while the stability of PSCs will be significantly decreased due to inherent hygroscopic properties and chemical incompatibility. Development of dopant-free HTM with high hole mobility is a challenge and of utmost importance. In this review, a series of selected and typical π-conjugated dopant-free hole transport materials, mainly regarding small molecules, are reviewed, which could consequently help to further design high-performance dopant-free HTMs. In addition, an outline of the molecular design concept and also the perspective of ideal dopant-free HTMs were explored.

A linear D–π–A based hole transport material for high performance rigid and flexible planar organic–inorganic hybrid perovskite solar cells

2019 ◽  
Vol 7 (43) ◽  
pp. 13440-13446 ◽  
Author(s):  
Haeun Kwon ◽  
Saripally Sudhaker Reddy ◽  
Veera Murugan Arivunithi ◽  
Hyunjung Jin ◽  
Ho-Yeol Park ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Performance ◽  
Perovskite Solar Cells ◽  
Hole Transport ◽  
Flexible Substrates ◽  
Solution Processed ◽  
Inorganic Hybrid ◽  
New Class ◽  
Hybrid Perovskite ◽  
Enhanced Stability

A new class of HTM is designed by introducing the D–π–A approach. Dopant-free TPA-BP-OXD based solution processed planar i-PSCs on rigid and flexible substrates show PCEs of 15.46% and 12.90%, respectively, and the hysteresis is negligible with enhanced stability.

scholarly journals Metal-Organic Framework Materials for Perovskite Solar Cells

Polymers ◽  
2020 ◽  
Vol 12 (9) ◽  
pp. 2061
Author(s):  
Do Yeon Heo ◽  
Ha Huu Do ◽  
Sang Hyun Ahn ◽  
Soo Young Kim
Keyword(s):  
Solar Cells ◽  
High Efficiency ◽  
Metal Organic Framework ◽  
Perovskite Solar Cells ◽  
Dye Sensitized Solar Cells ◽  
Hole Transport ◽  
Framework Materials ◽  
Hybrid Perovskite ◽  
Hole Transport Layers ◽  
Metal Organic

Metal-organic frameworks (MOFs) and MOF-derived materials have been used for several applications, such as hydrogen storage and separation, catalysis, and drug delivery, owing to them having a significantly large surface area and open pore structure. In recent years, MOFs have also been applied to thin-film solar cells, and attractive results have been obtained. In perovskite solar cells (PSCs), the MOF materials are used in the form of an additive for electron and hole transport layers, interlayer, and hybrid perovskite/MOF. MOFs have the potential to be used as a material for obtaining PSCs with high efficiency and stability. In this study, we briefly explain the synthesis of MOFs and the performance of organic and dye-sensitized solar cells with MOFs. Furthermore, we provide a detailed overview on the performance of the most recently reported PSCs using MOFs.

Face-On Oriented Hydrophobic Conjugated Polymers as Dopant-Free Hole-Transport Materials for Efficient and Stable Perovskite Solar Cells with Fill Factor Approaching 85%

2022 ◽  
Author(s):  
Peng Gao ◽  
Lusheng Liang ◽  
Naoyuki Shibayama ◽  
Haiying Jiang ◽  
Zilong Zhang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Surface Energy ◽  
Conjugated Polymers ◽  
High Performance ◽  
Fill Factor ◽  
Perovskite Solar Cells ◽  
Hole Transport ◽  
Free Hole ◽  
Low Surface Energy

Developing high-performance dopant-free hole transport material (DF-HTM) is critical to realizing stable perovskite solar cells (PSCs). Herein, a class of siloxane-terminated polymers (PBZ-Si) with low surface energy were studied as...

Cost-effective dopant-free star-shaped oligo-aryl amines for high performance perovskite solar cells

2019 ◽  
Vol 7 (23) ◽  
pp. 14209-14221 ◽  
Author(s):  
Jun-Ying Feng ◽  
Kuan-Wen Lai ◽  
Yuan-Shin Shiue ◽  
Ashutosh Singh ◽  
CH. Pavan Kumar ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Performance ◽  
Perovskite Solar Cells ◽  
Cost Effective ◽  
Hole Transport ◽  
Free Hole ◽  
Aryl Amines ◽  
Effective Dopant

Cost-effective imidazole-based star-shaped arylamines were used as dopant-free hole transport materials (HTMs) for high performance perovskite solar cells (17.47%).

Molecular design with silicon core: toward commercially available hole transport materials for high-performance planar p–i–n perovskite solar cells

2018 ◽  
Vol 6 (2) ◽  
pp. 404-413 ◽  
Author(s):  
Rongming Xue ◽  
Moyao Zhang ◽  
Guiying Xu ◽  
Jingwen Zhang ◽  
Weijie Chen ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Performance ◽  
Molecular Design ◽  
Low Cost ◽  
Perovskite Solar Cells ◽  
Hole Transport

We synthesized a low-cost silicon containing HTL materials, achieving an excellent PCE of 19.06% for planar p–i–n perovskite solar cells.

scholarly journals High-Hole-Mobility Metal–Organic Framework as Dopant-Free Hole Transport Layer for Perovskite Solar Cells

2022 ◽  
Vol 17 (1) ◽  
Author(s):  
Ruonan Wang ◽  
Weikang Yu ◽  
Cheng Sun ◽  
Kashi Chiranjeevulu ◽  
Shuguang Deng ◽  
...  
Keyword(s):  
Solar Cells ◽  
Metal Organic Framework ◽  
Perovskite Solar Cells ◽  
Hole Mobility ◽  
Hole Transport ◽  
Transport Layer ◽  
Hole Transport Layer ◽  
Free Hole ◽  
Metal Organic ◽  
Organic Framework

AbstractA dopant-free hole transport layer with high mobility and a low-temperature process is desired for optoelectronic devices. Here, we study a metal–organic framework material with high hole mobility and strong hole extraction capability as an ideal hole transport layer for perovskite solar cells. By utilizing lifting-up method, the thickness controllable floating film of Ni3(2,3,6,7,10,11-hexaiminotriphenylene)2 at the gas–liquid interface is transferred onto ITO-coated glass substrate. The Ni3(2,3,6,7,10,11-hexaiminotriphenylene)2 film demonstrates high compactness and uniformity. The root-mean-square roughness of the film is 5.5 nm. The ultraviolet photoelectron spectroscopy and the steady-state photoluminescence spectra exhibit the Ni3(HITP)2 film can effectively transfer holes from perovskite film to anode. The perovskite solar cells based on Ni3(HITP)2 as a dopant-free hole transport layer achieve a champion power conversion efficiency of 10.3%. This work broadens the application of metal–organic frameworks in the field of perovskite solar cells. Graphical Abstract

scholarly journals Dopant-Free Hole Transport Materials with a Long Alkyl Chain for Stable Perovskite Solar Cells

Nanomaterials ◽  
2019 ◽  
Vol 9 (7) ◽  
pp. 935 ◽  
Author(s):  
Kai Wang ◽  
Haoran Chen ◽  
Tingting Niu ◽  
Shan Wang ◽  
Xiao Guo ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Efficiency ◽  
Alkyl Chain ◽  
Perovskite Solar Cells ◽  
Carbon Chain ◽  
Hole Transport ◽  
Original Performance ◽  
Free Hole ◽  
Alkyl Substitution ◽  
Hole Transporting

Hole transport materials are indispensable to high efficiency perovskite solar cells. Two new hole transporting materials (HTMs), named 4,4′-(9-nonyl-9H-carbazole-3,6-diyl)bis (N,N-bis(4-methoxyphenyl)aniline) (CZTPA-1) and 4,4′-(9-methyl-9H-carbazole-3,6-diyl)bis (N,N-bis(4-methoxyphenyl)aniline)(CZTPA-2), were developed by different alkyl substitution methods. The two compounds, containing a carbazole core and triphenylamine (TPA) groups with different lengths of the alkyl chain, were designed and synthesized through a two-step synthesis approach. The power conversion efficiency (PCE) was found to be affected by the length of the alkyl chain, reaching 7% for CZTPA-1 and 11% for CZTPA-2. Furthermore, the CZTPA-2 still maintained 89.7% of its original performance after 400 h. The proposed results demonstrate the effect of carbon chain substituents on the efficiency of perovskite solar cells (PSCs).

Pyridyl Functionalized Spiro [Fluorene-Xanthene] as Dopant Free Hole Transport Material for Stable Perovskite Solar Cells

2021 ◽  
Author(s):  
B Yadagiri ◽  
Towhid Hossain Chowdhury ◽  
Yulu He ◽  
Ryuji Kaneko ◽  
Ashraful Islam ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Efficiency ◽  
Critical Role ◽  
Perovskite Solar Cells ◽  
Hole Transport ◽  
Free Hole

The Hole Transport Materials (HTMs) play a critical role in perovskite solar cells (PSCs) for achieving high efficiency and stability. Herein, we have designed and synthesized a HTM named as...

scholarly journals Iodine reduction for reproducible and high-performance perovskite solar cells and modules

2021 ◽  
Vol 7 (10) ◽  
pp. eabe8130
Author(s):  
Shangshang Chen ◽  
Xun Xiao ◽  
Hangyu Gu ◽  
Jinsong Huang
Keyword(s):  
Solar Cells ◽  
High Performance ◽  
High Efficiency ◽  
Electronic Materials ◽  
Substantial Reduction ◽  
Perovskite Solar Cells ◽  
High Yield ◽  
Operation Conditions ◽  
Record Value ◽  
Precursor Powders

Perovskite-based electronic materials and devices such as perovskite solar cells (PSCs) have notoriously bad reproducibility, which greatly impedes both fundamental understanding of their intrinsic properties and real-world applications. Here, we report that organic iodide perovskite precursors can be oxidized to I2 even for carefully sealed precursor powders or solutions, which markedly deteriorates the performance and reproducibility of PSCs. Adding benzylhydrazine hydrochloride (BHC) as a reductant into degraded precursor solutions can effectively reduce the detrimental I2 back to I−, accompanied by a substantial reduction of I3−-induced charge traps in the films. BHC residuals in perovskite films further stabilize the PSCs under operation conditions. BHC improves the stabilized efficiency of the blade-coated p-i-n structure PSCs to a record value of 23.2% (22.62 ± 0.40% certified by National Renewable Energy Laboratory), and the high-efficiency devices have a very high yield. A stabilized aperture efficiency of 18.2% is also achieved on a 35.8-cm2 mini-module.

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