Improvement in photovoltaic performance of perovskite solar cells by interface modification and co-sensitization with novel asymmetry 7-coumarinoxy-4-methyltetrasubstituted metallophthalocyanines

Wang, Shirong; Xiao, Yin; Li, Xianggao

doi:10.1016/j.synthmet.2016.06.003

Cited by 21 publications

(5 citation statements)

References 42 publications

(45 reference statements)

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“…The power conversion efficiency (PCE) of perovskite solar cells (PSCs) has increased within a few years from 3.81 to over 22% − due to the favorable optoelectronic features of metal halide perovskites. PSCs comprise, apart from the perovskite light harvester, electron- and hole- transporting materials (HTMs) and a metallic counter electrode.…”

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confidence: 99%

Impact of Peripheral Groups on Phenothiazine-Based Hole-Transporting Materials for Perovskite Solar Cells

et al. 2018

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Three hole-transporting materials (HTMs) based on the phenothiazine core containing 4,4-dimethyltriphenylamine (Z28), N-ethylcarbazole (Z29), and 4,4-dimethoxytriphenylamine (Z30) as the peripheral groups connected by double bonds were designed and synthesized. The HTMs were tested in mixed cation/anion perovskite solar cells (PSCs) of the composition [(FAPbI 3 ) 0.85 (MAPbBr 3 ) 0.15 ]. A power conversion efficiency (PCE) of 19.17% under 100 Mw cm −2 standard AM 1.5G solar illumination was obtained using Z30. Importantly, the devices based on Z30 show better stability compared to those using Z28 and Z29 when aged under ambient air of 40% relative humidity in the dark for 1008 h and under continuous sunlight soaking without encapsulation for 600 h. These results indicate that the 4,4-dimethoxytriphenylamine is a promising peripheral group in combination with the phenothiazine core, providing an alternative to develop small molecular HTMs for efficient and stable PSCs.

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Impact of Peripheral Groups on Phenothiazine-Based Hole-Transporting Materials for Perovskite Solar Cells

et al. 2018

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“…Recently,t he photovoltaicc ommunity has witnessed ar apid emergenceo fanew class of solid-stateh eterojunction solarc ells based on solution-processable organometal halide perovskite absorbers. [1][2][3] The powerc onversion efficiency (PCE) of solid-state perovskite solar cells (PSCs) quickly increasedt oover 20 % [4][5][6] because of their unique characteristics, such as abroad spectralabsorption range, large absorption coefficient, high charge carrier mobility,a nd long diffusion length. [2] In the configuration of aP SC, the hole transporting material (HTM)p lays the key role of promoting hole migration, as well as preventing internal charge recombination.…”

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confidence: 99%

Dopant‐Free Donor (D)–π–D–π–D Conjugated Hole‐Transport Materials for Efficient and Stable Perovskite Solar Cells

Liu

et al. 2016

ChemSusChem

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Abstract:Three novel hole transporting materials (HTM) using the 4-Methoxytriphenylamine (MeOTPA) core were designed and synthesized.The HTMs energy levels were tuned to match with perovskite by introducing electron donating groups symmetrically linked with olefinic bonds as the π bridge. The CH 3 NH 3 PbI 3 -based perovskite solar cells exhibited a remarkable overall power conversion efficiency (PCE) of 16.1 % without any dopants and additives based on 4-((E)-4-(bis(4-methoxyphenyl)amino)styryl)-N-(4-((E)-4-(bis(4methoxyphenyl)amino)styryl)phenyl)-N-(4-methoxyphenyl)aniline (Z34) , which is comparable to 16.7 % obtained by p-doped spiro-OMeTAD-based device. Importantly, the devices based-on three HTMs show relatively better stability compared to devices based on spiro-OMeTAD when aged under ambient air of 30% relative humidity in the dark. 2Increasing energy demands and concerns about global warming drive the exploration of clean, inexpensive and renewable energy sources. Recently, the photovoltaic community has witnessed a rapid emergence of a new class of solid-state heterojunction solar cells based on solution-processable organometal halide perovskite absorbers [1][2][3] . The power conversion efficiency (PCE) of solid-state perovskite solar cells (PSCs) has been quickly increased to over 20% [4][5][6] because of their unique characteristics, such as a broad spectral absorption range, large absorption coefficient, high charge carrier mobility and long diffusion length.[2]In the configuration of a PSC, the hole transporting material (HTMs) plays the key role of promoting hole migration, as well as preventing internal charge recombination. [7] A great number of HTMs have been developed and applied in PSCs, including various newly designed, inorganic p-type semiconductors, conducting polymers, as well as small molecule hole conductors [8] . 2,2′,7,7′-tetrakis(N,N-di-p-methoxyphenylamine)-9,9′-spirobifluorene (spiro-OMeTAD) that was well studied in solid state DSCs, continues to exhibit high performance in PSCs. Due to its relatively low hole mobility and its tedious synthesis strongly correlated to its production cost, numerous alternative HTMs have been explored with an aim to replace such a material [9][10][11][12][13][14][15][16][17][18][19][20] . Although inorganic HTMs (CuI and CuSCN) have drawn much attention due to their high hole mobilities and low production cost [21] ,polymeric HTMs, such as conjugated polytriarylamine (PTAA) [22] , poly(3-hexylthiophene-2,5-diyl) (P3HT) [23] etc., have also shown competitive performances in PSCs, small molecular HTMs have advantages of their convenient purification, controllable molecular structures and relatively high efficiency [24] .Regarding small molecule HTMs incorporated with dopants, the PCE of the dopant-free HTM based devices are consistently lying between 10% to 13% [25][26][27][28][29][30][31][32][33][34][35][36] , few are over 15%. [37][38][39][40] Herein, we report the synthesis and characterization of three novel dopant-free 4-Methoxytriphenylamine (Me...

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“…This can enhance the incident photon-to-current efficiency and consequently the current produced by the device [47]. Zhang et al used metallophthalocyanines to sensitize CH 3 NH 3 PbI 3 solar cells and reported a PCE of almost 14%, which was increased by 28% compared to the efficiency of the devices that used only the perovskite as the absorption material [73]. They attributed the enhanced efficiency of the cosensitized devices to charge injection occurring from both sensitizers, possible energy transfer from high energy perovskite to the lower energy dye, and potential decrease in series resistance.…”

Section: Future Outlook and Challengesmentioning

confidence: 99%

Current Status of Emerging PV Technologies: A Comparative Study of Dye-Sensitized, Organic, and Perovskite Solar Cells

Giannouli¹

2021

International Journal of Photoenergy

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The imminent depletion of conventional energy sources has motivated the advancement of renewable energy technologies. Third-generation photovoltaic technologies, such as dye-sensitized solar cells (DSSCs), organic solar cells (OSCs), and perovskite solar cells (PSCs), are being developed as alternatives to silicon solar cells. In recent years, there has been considerable interest in the market development of these emerging photovoltaic technologies, especially for sustainable solar energy applications. However, these technologies have not yet reached the maturity required for large-scale commercialization. Further research is required in order to improve the efficiency and stability of these devices, while keeping their production costs to a minimum. In this study, a comparative assessment of DSSCs, OSCs, and PSCs is conducted and the current state of the art of these promising technologies is investigated. Advanced techniques and research trends are examined from the perspective of novel materials, device modelling, and innovative device structures. The comparative advantages and limitations of each of these photovoltaic technologies are assessed in terms of device efficiency, durability, ease of fabrication, and performance-price ratio. Emphasis is placed on assessing the potential of these solar cell technologies for sustainable solar energy applications. Finally, the future outlook of these technologies is featured, and avenues for progress beyond the state of the art are explored.

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Improvement in photovoltaic performance of perovskite solar cells by interface modification and co-sensitization with novel asymmetry 7-coumarinoxy-4-methyltetrasubstituted metallophthalocyanines

Cited by 21 publications

References 42 publications

Impact of Peripheral Groups on Phenothiazine-Based Hole-Transporting Materials for Perovskite Solar Cells

Impact of Peripheral Groups on Phenothiazine-Based Hole-Transporting Materials for Perovskite Solar Cells

Dopant‐Free Donor (D)–π–D–π–D Conjugated Hole‐Transport Materials for Efficient and Stable Perovskite Solar Cells

Current Status of Emerging PV Technologies: A Comparative Study of Dye-Sensitized, Organic, and Perovskite Solar Cells

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