scholarly journals 3,6-Carbazole vs 2,7-carbazole: A comparative study of hole-transporting polymeric materials for inorganic–organic hybrid perovskite solar cells

2016 ◽  
Vol 12 ◽  
pp. 1401-1409 ◽  
Author(s):  
Wei Li ◽  
Munechika Otsuka ◽  
Takehito Kato ◽  
Yang Wang ◽  
Takehiko Mori ◽  
...  
Keyword(s):  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Polymeric Materials ◽  
Hole Mobility ◽  
Clean Energy ◽  
Photovoltaic Properties ◽  
Organic Hybrid ◽  
Hybrid Perovskite ◽  
Hole Transporting ◽  
Stille Polycondensation

The ever increasing demand for clean energy has encouraged researchers to intensively investigate environmentally friendly photovoltaic devices. Inorganic–organic hybrid perovskite solar cells (PSCs) are very promising due to their potentials of easy fabrication processes and high power conversion efficiencies (PCEs). Designing hole-transporting materials (HTMs) is one of the key factors in achieving the high PCEs of PSCs. We now report the synthesis of two types of carbazole-based polymers, namely 3,6-Cbz-EDOT and 2,7-Cbz-EDOT, by Stille polycondensation. Despite the same chemical composition, 3,6-Cbz-EDOT and 2,7-Cbz-EDOT displayed different optical and electrochemical properties due to the different connectivity mode of the carbazole unit. Therefore, their performances as hole-transporting polymeric materials in the PSCs were also different. The device based on 2,7-Cbz-EDOT showed better photovoltaic properties with the PCE of 4.47% than that based on 3,6-Cbz-EDOT. This could be due to its more suitable highest occupied molecular orbital (HOMO) level and higher hole mobility.

Efficient Inorganic–Organic Hybrid Perovskite Solar Cells Based on Pyrene Arylamine Derivatives as Hole-Transporting Materials

2013 ◽  
Vol 135 (51) ◽  
pp. 19087-19090 ◽  
Author(s):  
Nam Joong Jeon ◽  
Jaemin Lee ◽  
Jun Hong Noh ◽  
Mohammad Khaja Nazeeruddin ◽  
Michael Grätzel ◽  
...  
Keyword(s):  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Organic Hybrid ◽  
Hybrid Perovskite ◽  
Hole Transporting ◽  
Hole Transporting Materials

Inorganic-Organic Hybrid Perovskite Solar Cells Fabricated with Additives

2020 ◽  
Vol 860 ◽  
pp. 3-8
Author(s):  
Yukio Furukawa ◽  
Seiya Ikawa ◽  
Hanako Kiyohara ◽  
Yuki Sendai ◽  
Ayi Bahtiar
Keyword(s):  
Solar Cells ◽  
Crystallization Process ◽  
Perovskite Solar Cells ◽  
Sem Images ◽  
Photovoltaic Properties ◽  
Organic Hybrid ◽  
Active Layers ◽  
Hybrid Perovskite ◽  
Infrared Measurements ◽  
Crystallite Sizes

We have studied the effect of lead (II) cyanate Pb (OCN)2 additive on photovoltaic properties of inverted planar solar cells based on inorganic-organic hybrid perovskite CH3NH3PbI3. The active layers of the solar cells were fabricated with a reaction between CH3NH3I and a mixture of PbI2 and Pb (OCN)2. The highest power conversion efficiency was 15%. Hysteresis behaviors in JV curves were reduced. The lifetime of the solar cells was dramatically increased. SEM images indicated that crystallite sizes were enlarged. The OCN groups were not incorporated into crystals from infrared measurements. These results suggest that Pb (OCN)2 affect mainly the crystallization process of CH3NH3PbI3.

Ladder-like conjugated polymers used as hole-transporting materials for high-efficiency perovskite solar cells

2019 ◽  
Vol 7 (24) ◽  
pp. 14473-14477 ◽  
Author(s):  
Liren Zhang ◽  
Jionghua Wu ◽  
Dongmei Li ◽  
Wenhua Li ◽  
Qingbo Meng ◽  
...  
Keyword(s):  
Solar Cells ◽  
Energy Level ◽  
Conjugated Polymers ◽  
High Efficiency ◽  
Perovskite Solar Cells ◽  
Hole Mobility ◽  
Homo Energy ◽  
Hole Transporting ◽  
Hole Transporting Materials ◽  
Homo Energy Level

Intramolecular S–O interactions were adopted for designing HTMs with high hole mobility and a suitable HOMO energy level in PVSK.

Design of dendritic core carbazole-based hole transporting materials for efficient and stable hybrid perovskite solar cells

2018 ◽  
Vol 60 ◽  
pp. 22-30 ◽  
Author(s):  
Thanh-Tuân Bui ◽  
Maria Ulfa ◽  
Federica Maschietto ◽  
Alistar Ottochian ◽  
Mai-Phuong Nghiêm ◽  
...  
Keyword(s):  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Dendritic Core ◽  
Hybrid Perovskite ◽  
Hole Transporting ◽  
Stable Hybrid ◽  
Hole Transporting Materials

scholarly journals Novel star-shaped D–π–D–π–D and (D–π)2–D–(π–D)2 anthracene-based hole transporting materials for perovskite solar cells

2020 ◽  
Vol 2 (8) ◽  
pp. 3514-3524
Author(s):  
Muniyasamy Harikrishnan ◽  
Sepperumal Murugesan ◽  
Ayyanar Siva
Keyword(s):  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Inorganic Hybrid ◽  
Hybrid Perovskite ◽  
Hole Transporting ◽  
Molecular Architectures ◽  
Hole Transporting Materials

Three novel star shaped molecular architectures for D–π–D–π–D and (D–π)2–D–(π–D)2 anthracene based hole transporting materials are designed for organic-inorganic hybrid perovskite solar cells through Gaussian 09 computation.

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