Recent major advancements in perovskite solar cells

Xu, Lijia; Wang, Si; Pu, Mingbo; Guo, Yinghui; Li, Xiong; Luo, Xiangang

doi:10.1088/2040-8986/ad33a6

Cited by 3 publications

(1 citation statement)

References 161 publications

(189 reference statements)

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“…The remarkable enhancement in PSC performance can be credited to several advantageous factors. These characteristics include a broad absorption spectrum [9], extended diffusion lengths (>1000 nm) [10], elevated open-circuit voltages [11], and bandgap adjustment (1.2-3.1 eV) [12].…”

Section: Introductionmentioning

confidence: 99%

Investigation of HTL-free perovskite solar cell under LED illumination: interplay between energy bandgap and absorber optimization

Alanazi,

Zein,

Azab

et al. 2024

Phys. Scr.

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In this paper, we introduce an efficient perovskite solar cell (PSC) designed for indoor applications, which does not incorporate a hole transport layer (HTL). The perovskite material studied in this work is MAPbI3-xClx, whose bandgap energy can be adjusted to match the spectrum of white LEDs. While the removal of the HTL initially leads to a decline in cell performance, a subsequent enhancement is achieved in performance when the work function of the rear contact is increased. This improvement can be attributed to the increased electric field at the back contact interface. The performance of the HTL-free PSC is further optimized by adjusting various technological and physical factors of the perovskite absorber. These parameters include thickness, bulk defects, doping level, and energy gap of the perovskite material. Our results demonstrate that the HTL-free PSC structure exhibits superior performance metrics under a white LED environment at 1000 lux and a color temperature of 2700 K. In this context, a power conversion efficiency (PCE) above 34% can be obtained upon proper optimization procedures. Further, the interplay between the energy gap (Eg) of the absorber and the optimization procedures is investigated, highlighting its importance in the context of HTL-free designs for indoor applications. Practical recommendations stemming from this study include an emphasis on optimization for HTL-free cells and caution against applying ideal Eg ranges to non-optimized configurations.

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Section: Introductionmentioning

confidence: 99%

Investigation of HTL-free perovskite solar cell under LED illumination: interplay between energy bandgap and absorber optimization

Alanazi,

Zein,

Azab

et al. 2024

Phys. Scr.

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Small molecule induced interfacial defect healing to construct inverted perovskite solar cells with high fill factor and stability

Wu,

Deng,

Yang

et al. 2025

Journal of Colloid and Interface Science

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Combinatorial composition-gradient and -aligned CsPb(Br1−xIx)3 films by IR-laser MBE

Takahashi,

Kuroda,

Dazai

et al. 2024

Journal of Applied Physics

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We investigated the combinatorial synthesis and characterization of a halide perovskite CsPb(Br1−xIx)3 composition-gradient film deposited on a SrTiO3(001) substrate using infrared laser molecular beam epitaxy. In halide perovskite materials, the diffusion speed of the halogen ions is high, making it difficult to form a continuous composition-gradient film. This is because halogen ions diffuse across the entire film surface, making it impossible to specify the anion composition that changes at each position. In this study, a contact-shadow mask process was introduced to suppress the interdiffusion of halogen ions. Consequently, a CsPb(Br1−xIx)3 composition-gradient and -aligned film in which the chemical composition of CsPbBr3 and CsPbI3 changed digitally was formed and systematically characterized for the optical bandgap and photoluminescence emission wavelength with respect to the chemical composition of the halogen ion. This deposition process is expected to be promising for exploring halide perovskite materials with complex chemical compositions, such as triple-cation halide perovskites.

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Recent major advancements in perovskite solar cells

Cited by 3 publications

References 161 publications

Investigation of HTL-free perovskite solar cell under LED illumination: interplay between energy bandgap and absorber optimization

Investigation of HTL-free perovskite solar cell under LED illumination: interplay between energy bandgap and absorber optimization

Small molecule induced interfacial defect healing to construct inverted perovskite solar cells with high fill factor and stability

Combinatorial composition-gradient and -aligned CsPb(Br1−xIx)3 films by IR-laser MBE

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