Interface engineering of perovskite solar cells with multifunctional polymer interlayer toward improved performance and stability

Huang, Li‐Bo; Su, Peiyang; Liu, Jun‐Min; Huang, Jianfeng; Chen, Yifan; Su, Qin; Guo, Jing; Xu, Yao‐Wei

doi:10.1016/j.jpowsour.2017.12.082

Cited by 50 publications

(24 citation statements)

References 60 publications

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“…P3HT has been widely used as a HTM in PSCs, as well as a polymeric interlayer between the perovskite layer and HTM. So far, perovskite devices that employ P3HT as HTM or polymeric interlayer with different HTM in their structures have achieved efficiencies as high as 19% . However, the low μ h of P3HT (3 × 10 −4 cm 2 V −1 s −1 ), compared with spiro‐OMeTAD, resulted in lower photovoltaic performances for PSCs .…”

Section: Summary Of Photovoltaic Parameters Of Pscs Employing N‐cume2mentioning

confidence: 99%

P3HT/Phthalocyanine Nanocomposites as Efficient Hole‐Transporting Materials for Perovskite Solar Cells

Rezaee

Dong

et al. 2018

Solar RRL

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New efficient hole‐transport material (HTM) composites based on low‐cost easy‐preparation non‐peripheral octamethyl‐substituted copper (II) phthalocyanine (N‐CuMe2Pc) nanowire and poly(3‐hexylthiophene) (P3HT) are developed for CH3NH3PbI3 (MAPbI3)‐based perovskite solar cells (PSCs). Compared with pristine P3HT, the prepared nanocomposite HTMs provided thin films with better qualities and reduced trap densities, and exhibited higher hole mobilities and well‐matched energy levels with the perovskite layer. Depending on the ratio of the two components, the power conversion efficiency (PCE) reached up to 16.61%, which is higher than the efficiency of the standard device based on doped spiro‐OMeTAD (16.13%). Moreover, the long‐term stability of the PSCs is also improving greatly. The best performing devices based on P1C1 HTM retained 90% of their initial efficiencies after 800 h of storage with a relative humidity of 75%. These results indicate N‐CuMe2Pc nanowire/P3HT nanocomposites can be an effective HTM to realize superior performance in PSCs.

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Section: Summary Of Photovoltaic Parameters Of Pscs Employing N‐cume2mentioning

confidence: 99%

P3HT/Phthalocyanine Nanocomposites as Efficient Hole‐Transporting Materials for Perovskite Solar Cells

Rezaee

Dong

et al. 2018

Solar RRL

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“…[33][34][35][36][37] The core component of this solar cell is the perovskite active material, bearing ag eneric structure ABX 3 ,i nw hich Ai samonovalent cation (like methylammoniumC H 3 NH 3 + or MA, formamidinium CH 2 (NH 2 ) 2 + or FA,C s + ,R b + ), Bs tands for Pb II or Sn II and Xf or Io rB r. [38][39][40][41][42] The outstanding optoelectronic properties of perovskites, characterizedb yh igh mobility and absorption co-efficient, long-balanced carrier diffusionl ength and low-exciton bindinge nergy,j ustify the current success of this photovoltaic technology. [43][44][45][46][47] Severalr eview articles have been published on different strategies to improve the performance of lab-scale PSCs. [48][49][50][51][52][53][54][55][56][57] As it is typical for novel technologies, [58][59][60][61][62] research in the field of PSCs is currently focusedo no vercoming important issues, starting from the difficulty of reproducing high power conversion efficiency (PCE) values when the devicea rea is increaseda tt he module level.…”

Section: Introductionmentioning

confidence: 99%

“…The core component of this solar cell is the perovskite active material, bearing a generic structure ABX 3 , in which A is a monovalent cation (like methylammonium CH 3 NH 3 + or MA, formamidinium CH 2 (NH 2 ) 2 + or FA, Cs + , Rb + ), B stands for Pb II or Sn II and X for I or Br . The outstanding optoelectronic properties of perovskites, characterized by high mobility and absorption coefficient, long‐balanced carrier diffusion length and low‐exciton binding energy, justify the current success of this photovoltaic technology . Several review articles have been published on different strategies to improve the performance of lab‐scale PSCs …”

Section: Introductionmentioning

confidence: 99%

Caesium for Perovskite Solar Cells: An Overview

Bella

Renzi

Cavallo

et al. 2018

Chemistry A European J

141

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Perovskite solar cells have the potential to revolutionize the world of photovoltaics, and their efficiency close to 23 % on a lab-scale recently certified this novel technology as the one with the most rapidly raising performance per year in the whole story of solar cells. With the aim of improving stability, reproducibility and spectral properties of the devices, in the last three years the scientific community strongly focused on Cs-doping for hybrid (typically, organolead) perovskites. In parallel, to further contrast hygroscopicity and reach thermal stability, research has also been carried out to achieve the development of all-inorganic perovskites based on caesium, the performances of which are rapidly increasing. The potential of caesium is further strengthened when it is used as a modifying agent of charge-carrier layers in solar cells, but also for the preparation of perovskites with peculiar optoelectronic properties for unconventional applications (e.g., in LEDs, photodetectors, sensors, etc.). This Review offers a 360-degree overview on how caesium can strongly tune the properties and performance of perovskites and relative perovskite-based devices.

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“…The surface composition and morphology of a perovskite layer strongly influence its energy-level alignment, exciton diffusion length, mobility, lifetime, and generally affecting performance of the PSCs. Much effort has, therefore, been devoted to controlling the surface composition and morphology of perovskite films [11][12][13][14]. Recently, post-processing methods have been developed to improve their surface properties [15].…”

Section: Introductionmentioning

confidence: 99%

A Study on the Effect of Ambient Air Plasma Treatment on the Properties of Methylammonium Lead Halide Perovskite Films

Shekargoftar

Jurmanová

Homola

2019

Metals

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Organic-inorganic halide perovskite materials are considered excellent active layers in the fabrication of highly efficient and low-cost photovoltaic devices. This contribution demonstrates that rapid and low-temperature air-plasma treatment of mixed organic-inorganic halide perovskite film is a promising technique, controlling its opto-electrical surface properties by changing the ratio of organic-to-inorganic components. Plasma treatment of perovskite films was performed with high power-density (25 kW/m2 and 100 W/cm3) diffuse coplanar surface barrier discharge (DCSBD) at 70 °C in ambient air. The results show that short plasma treatment time (1 s, 2 s, and 5 s) led to a relatively enlargement of grain size, however, longer plasma treatment time (10 s and 20 s) led to an etching of the surface. The band-gap energy of the perovskite films was related to the duration of plasma treatment; short periods (≤5 s) led to a widening of the band gap from ~1.66 to 1.73 eV, while longer exposure (>5 s) led to a narrowing of the band gap to approx. 1.63 eV and fast degradation of the film due to etching. Surface analysis demonstrated that the film became homogeneous, with highly oriented crystals, after short plasma treatment; however, prolonging the plasma treatment led to morphological disorders and partial etching of the surface. The plasma treatment approach presented herein addresses important challenges in current perovskite solar cells: tuning the optoelectronic properties and manufacturing homogeneous perovskite films.

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Interface engineering of perovskite solar cells with multifunctional polymer interlayer toward improved performance and stability

Cited by 50 publications

References 60 publications

P3HT/Phthalocyanine Nanocomposites as Efficient Hole‐Transporting Materials for Perovskite Solar Cells

P3HT/Phthalocyanine Nanocomposites as Efficient Hole‐Transporting Materials for Perovskite Solar Cells

Caesium for Perovskite Solar Cells: An Overview

A Study on the Effect of Ambient Air Plasma Treatment on the Properties of Methylammonium Lead Halide Perovskite Films

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