Simultaneous hole transport and defect passivation enabled by a dopant-free single polymer for efficient and stable perovskite solar cells

2020 ◽  
Vol 8 (40) ◽  
pp. 21036-21043
Author(s):  
Xiaoqing Jiang ◽  
Xuan Liu ◽  
Jiafeng Zhang ◽  
Sajjad Ahmad ◽  
Dandan Tu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Main Chain ◽  
Perovskite Solar Cells ◽  
Hole Transport ◽  
Side Chain ◽  
Free Hole ◽  
Defect Passivation ◽  
Hole Transporting

Dopant-free hole-transporting polymers with simultaneous main-chain hole extraction/transport and side-chain defect passivation are developed for efficient and stable perovskite solar cells.

Polystyrene with a methoxytriphenylamine-conjugated-thiophene moiety side-chain as a dopant-free hole-transporting material for perovskite solar cells

2018 ◽  
Vol 6 (27) ◽  
pp. 13123-13132 ◽  
Author(s):  
Jianchang Wu ◽  
Chang Liu ◽  
Manman Hu ◽  
Xiang Deng ◽  
Wenchang Tan ◽  
...  
Keyword(s):  
Solar Cells ◽  
Radical Polymerization ◽  
Perovskite Solar Cells ◽  
Side Chain ◽  
Free Hole ◽  
Chain Polymer ◽  
Hole Transporting ◽  
Thiophene Moiety ◽  
Hole Transporting Material

A novel side-chain polymer was designed and synthesized by integrating a methoxytriphenylamine-conjugated-thiophene moiety as the hole transporting material (HTM) unit on a polystyrene side-chain (HTM–P1) by the radical polymerization of its relevant monomer (HTM–M1).

scholarly journals Soluble hexamethyl-substituted subphthalocyanine as a dopant-free hole transport material for planar perovskite solar cells

2018 ◽  
Vol 5 (8) ◽  
pp. 180617 ◽  
Author(s):  
Feng Wang ◽  
Xiaoyuan Liu ◽  
Ehsan Rezaee ◽  
Haiquan Shan ◽  
Yuxia Zhou ◽  
...  
Keyword(s):  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Chemical Properties ◽  
Hole Transport ◽  
Orbital Energy ◽  
Step Method ◽  
Free Hole ◽  
Hole Transporting ◽  
Hole Transporting Material ◽  
Physical And Chemical

Boron subphthalocyanine (SubPc) has special physical and chemical properties, originating from its non-centrosymmetric, near-planar taper structure and large conjugated system; it can act as an alternative to the small molecule hole-transporting material 2,2′,7,7′-tetrakis-( N , N -di- p -methoxyphenylamine)-9,9′-spirobifluorene in perovskite solar cells (PSCs). To achieve a higher solubility in common organic solvents and a more suitable highest occupied molecular orbital energy level that aligns with the valence band of the perovskite material, a SubPc molecule with a hexamethyl substitution at its peripheral position (Me 6 -SubPc) was successfully designed and synthesized in a one-step method. Completely solution processed PSCs were fabricated with only a small hysteresis, a power conversion efficiency of 6.96% and V oc of 0.986 V.

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).

Side‐Chain Engineering on Dopant‐Free Hole‐Transporting Polymers toward Highly Efficient Perovskite Solar Cells (20.19%)

2019 ◽  
Vol 29 (39) ◽  
pp. 1904856 ◽  
Author(s):  
Luozheng Zhang ◽  
Chang Liu ◽  
Xingzhu Wang ◽  
Yanqing Tian ◽  
Alex K. Y. Jen ◽  
...  
Keyword(s):  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Side Chain ◽  
Free Hole ◽  
Highly Efficient ◽  
Hole Transporting

Side-chain engineering of PEDOT derivatives as dopant-free hole-transporting materials for efficient and stable n–i–p structured perovskite solar cells

2020 ◽  
Vol 8 (27) ◽  
pp. 9236-9242 ◽  
Author(s):  
Siyuan Han ◽  
Xiaoqing Jiang ◽  
Ze Yu ◽  
Xiaojing Wan ◽  
Jiadong Zang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Side Chain ◽  
Side Chains ◽  
Free Hole ◽  
Alkyl Side Chains ◽  
Hole Transporting ◽  
Hole Transporting Materials

We report three PEDOT derivatives, namely P6, P10, and P14, by tailoring the length of the alkyl side-chains, and apply them as dopant-free HTMs in mesoscopic n–i–p structured PSCs. The devices with P10 afford the best efficiency of 16.2% together with excellent ambient stability.

A polymeric bis(di-p-anisylamino)fluorene hole-transport material for stable n-i-p perovskite solar cells

2021 ◽  
Author(s):  
Marie-Hélène Tremblay ◽  
Kelly Schutt ◽  
Yadong Zhang ◽  
Stephen Barlow ◽  
Henry J. Snaith ◽  
...  
Keyword(s):  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Heat Stability ◽  
Hole Transport ◽  
Side Chains ◽  
Hole Transporting

Half-devices made with a norbornene homopolymer with hole-transporting 2,7-bis(di-p-anisylamino)fluorene side chains exhibit improved light and heat stability in comparison to those incorporating spiro-OMeTAD.

Fused Dithienopicenocarbazole Enabling High Mobility Dopant-Free Hole-Transporting Polymers for Efficient and Stable Perovskite Solar Cells

2021 ◽  
Vol 13 (5) ◽  
pp. 6688-6698
Author(s):  
Zilong Zhang ◽  
Lusheng Liang ◽  
Longhui Deng ◽  
Lu Ren ◽  
Nan Zhao ◽  
...  
Keyword(s):  
Solar Cells ◽  
Perovskite Solar Cells ◽  
High Mobility ◽  
Free Hole ◽  
Hole Transporting

scholarly journals Implementing Dopant-Free Hole-Transporting Layers and Metal-Incorporated CsPbI2Br for Stable All-Inorganic Perovskite Solar Cells

2021 ◽  
Vol 6 (2) ◽  
pp. 778-788
Author(s):  
Sawanta S. Mali ◽  
Jyoti V. Patil ◽  
Julian A. Steele ◽  
Sachin R. Rondiya ◽  
Nelson Y. Dzade ◽  
...  
Keyword(s):  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Free Hole ◽  
Inorganic Perovskite ◽  
Hole Transporting
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