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 ◽  
...  

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.

Nanoscale ◽  
2019 ◽  
Vol 11 (41) ◽  
pp. 19586-19594 ◽  
Author(s):  
Hannah Kwon ◽  
Ju Won Lim ◽  
Jinyoung Han ◽  
Li Na Quan ◽  
Dawoon Kim ◽  
...  

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).


Processes ◽  
2021 ◽  
Vol 9 (12) ◽  
pp. 2249
Author(s):  
Sanghyun Paek

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.


Author(s):  
Gururaj P. Kini ◽  
Mritunjaya Parashar ◽  
Vivek Kumar Shukla ◽  
Ranbir Singh

Diketopyrrolopyrrole (DPP)-based low-cost hole-transporting materials are designed via facile approaches for efficient perovskite solar cells, which endowed impressive PCE over 16% along with ambient stability.


2017 ◽  
Vol 19 (36) ◽  
pp. 24574-24582 ◽  
Author(s):  
Zemin Zhang ◽  
Weixia Hu ◽  
Jianyu Cui ◽  
Rongxing He ◽  
Wei Shen ◽  
...  

An improved hole transport ability is obtained by introducing a conjugated core into the structure of HTMs.


2018 ◽  
Vol 11 (02) ◽  
pp. 1850035 ◽  
Author(s):  
Zhixin Zhang ◽  
Shuqun Chen ◽  
Pingping Li ◽  
Hongyi Li ◽  
Junshu Wu ◽  
...  

This paper reports on the fabrication of CuOx films to be used as hole transporting layer (HTL) in CH3NH3PbI3 perovskite solar cells (PSCs). Ultra-thin CuOx coatings were grown onto FTO substrates for the first time via aerosol-assisted chemical vapor deposition (AACVD) of copper acetylacetonate in methanol. After incorporating into the PSCs prepared at ambient air, a highest power conversion efficiency (PCE) of 8.26% with HTL and of 3.34% without HTL were achieved. Our work represents an important step in the development of low-cost CVD technique for fabricating ultra-thin metal oxide functional layers in thin film photovoltaics.


2018 ◽  
Vol 6 (21) ◽  
pp. 5733-5737 ◽  
Author(s):  
Peng Zhou ◽  
Tongle Bu ◽  
Shengwei Shi ◽  
Lingfeng Li ◽  
Yulong Zhang ◽  
...  

Dopant-free P3HT was employed as hole transport materials for stable mixed perovskite planar solar cells.


2017 ◽  
Vol 19 (36) ◽  
pp. 25016-25024 ◽  
Author(s):  
Dian Wang ◽  
Kah H. Chan ◽  
Naveen Kumar Elumalai ◽  
Md. Arafat Mahmud ◽  
Mushfika B. Upama ◽  
...  

In this work, we have demonstrated the incorporation of metal (Ag NPs) and dielectric nanoparticles (SiO2 NPs) into the hole transporting layers of inverted PSCs using facile deposition methods.


2018 ◽  
Vol 5 (8) ◽  
pp. 180617 ◽  
Author(s):  
Feng Wang ◽  
Xiaoyuan Liu ◽  
Ehsan Rezaee ◽  
Haiquan Shan ◽  
Yuxia Zhou ◽  
...  

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.


2017 ◽  
Vol 5 (4) ◽  
pp. 1348-1373 ◽  
Author(s):  
Pooja Agarwala ◽  
Dinesh Kabra

Development of triphenylamine (TPA) based hole-transporting-materials (HTMs) leading to highTg, higher morphological stability and longevity of dye-sensitized and perovskite solar cells.


2017 ◽  
Vol 5 (20) ◽  
pp. 4940-4945 ◽  
Author(s):  
Marios Neophytou ◽  
Jack Griffiths ◽  
James Fraser ◽  
Mindaugas Kirkus ◽  
Hu Chen ◽  
...  

Herein, we report novel triarylamine based hole transporting materials (HTM) with high mobilities for perovskite solar cells.


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