Improving the Stability of Wide Bandgap Perovskites: Mechanisms, Strategies, and Applications in Tandem Solar Cells

Advanced Materials, Год журнала: 2025, Номер unknown

Опубликована: Апрель 7, 2025

Abstract Tandem solar cells (TSCs) based on wide bandgap (WBG) perovskites have gained significant attention for their higher power conversion efficiency (PCE) compared to single‐junction cells. The role of WBG perovskite (PSCs) as the sub‐cell in tandem consists absorbing high‐energy photons and producing open‐circuit voltages ( V OC ). However, PSCs face serious phase separation issues, resulting poor long‐term stability substantial loss TSCs. In response, researchers developed a range strategies mitigate these challenges, showing promising progress, comprehensive review is expected. this review, we discuss mechanism organic–inorganic hybrids all‐inorganic perovskites. Additionally, conduct an in‐depth investigation various enhance stability, including component engineering, additive interface dimension control, solvent encapsulation. Furthermore, application TSCs summarized detail. Finally, perspectives are provided offer guidance development efficient stable field

Язык: Английский

---

Enhancement of Efficiency of Perovskite Solar Cells with Hole-Selective Layers of Rationally Designed Thiazolo[5,4-d]thiazole Derivatives

ACS Applied Materials & Interfaces, Год журнала: 2024, Номер 16(23), С. 30239 - 30254

Опубликована: Май 29, 2024

We introduce thiazolo[5,4-d]thiazole (TT)-based derivatives featuring carbazole, phenothiazine, or triphenylamine donor units as hole-selective materials to enhance the performance of wide-bandgap perovskite solar cells (PSCs). The optoelectronic properties underwent thorough evaluation and were substantially fine-tuned through deliberate molecular design. Time-of-flight hole mobility TTs ranged from 4.33 × 10–5 1.63 10–3 cm2 V–1 s–1 (at an electric field 1.6 105 V cm–1). Their ionization potentials −4.93 −5.59 eV. Using density functional theory (DFT) calculations, it has been demonstrated that S0 → S1 transitions in with carbazolyl ditert-butyl-phenothiazinyl substituents are characterized by local excitation (LE). Mixed intramolecular charge transfer (ICT) LE occurred for compounds containing ditert-butyl carbazolyl-, dimethoxy alkoxy-substituted triphenylamino moieties. selected TT used preparation layers (HSL) PSC structure glass/ITO/HSLs/Cs0.18FA0.82Pb(I0.8Br0.2)3/PEAI/PC61BM/BCP/Ag. (TTP-DPA) be effective material HSL. Its layer also functioned well interlayer, improving surface control HSL_2PACz (i.e., reducing energy 2PACz 66.9 52.4 mN m–1), thus enabling precise over growth level alignment carrier extraction/transportation at hole-selecting contact PSCs. 2PACz/TTP-DPA-based devices showed optimized 19.1 37.0% under 1-sun 3000 K LED (1000 lx) illuminations, respectively. These values represent improvements those achieved bare 2PACz-based devices, which attained efficiencies 17.4 32.2%, findings highlight promising potential enhancement

Язык: Английский

---

Synergic MXene and S‐benzyl‐L‐cysteine Passivation Strategies for Wide Bandgap Perovskite Solar Cells for 4T Tandem Applications

Small, Год журнала: 2025, Номер unknown

Опубликована: Апрель 3, 2025

Bilayer nickel oxide (NiOx)/[2-(3,6-dimethoxy-9H-carbazol-9yl) ethyl] phosphonic acid (MeO-2PACz) hole transport layers have become attractive for perovskite solar cells and tandem architectures. However, challenges such as the instability of NiOx ink, accumulation, trap-assisted non-radiative recombination at interface remain major drawbacks using NiOx/MeO-2PACz HTL bilayer. In this work, two synergic strategies are employed to address these issues doping ink with niobium (Nb)-based MXene) introduction S-benzyl-L-cysteine (SBLC) molecule passivate MeO-2PACz/perovskite interface. These modifications effectively reduced defect states in layer enhanced dipole moment MeO-2PACz, minimizing valence band offset reduction charge rates. Consequently, target PSC device, made 1.68 eV-bandgap perovskite, demonstrated a power conversion efficiency (PCE) 19.5% improved stability compared control device when tested under ISOS protocols. Furthermore, semi-transparent (ST) PSCs been fabricated application 4T perovskite-silicon cell showing PCE 18.15% 27.95% single-junction architectures, respectively. findings demonstrate effectiveness combining strategic passivation techniques inverted enhancing performance without discarding long-term stability.

Язык: Английский

---

Enhancing Durability of Organic–Inorganic Hybrid Perovskite Solar Cells in High‐Temperature Environments: Exploring Thermal Stability, Molecular Structures, and AI Applications

Advanced Functional Materials, Год журнала: 2024, Номер unknown

Опубликована: Ноя. 19, 2024

Abstract The commercialization of perovskite solar cells (PSCs), as an emerging industry, still faces competition from other renewable energy technologies in the market. It is essential to ensure that PSCs are durable and stable high‐temperature environments order meet varied market demands hot regions or seasons. influence high temperatures on complex, encompassing factors such lattice strain, crystal phase changes, creation defects, ion movement. Furthermore, it intensifies vibrations phonon scattering, which turn impacts migration rate charge carriers. This review focuses durability organic–inorganic hybrid under temperatures. begins by analyzing impact external temperature variations internal dynamics PSCs. Subsequently, outlines various mechanisms provided different functional molecules, applied interface stabilization, grain boundary passivation, growth control, electrode protection, development new hole transport layers, enhance thermal stability Additionally, machine learning (ML) discussed for predicting structure stability, operational material screening, with a focus potential deep explainable artifical intelligence (AI) techniques

Язык: Английский

---

Research Progress of Semi-Transparent Perovskite and Four-Terminal Perovskite/Silicon Tandem Solar Cells

Energies, Год журнала: 2024, Номер 17(8), С. 1833 - 1833

Опубликована: Апрель 11, 2024

Perovskite/silicon tandem solar cells are of great interest due to their potential for breaking the Shockley-Queisser limit single-junction silicon cells. Perovskite widely used as top subcells in perovskite/silicon high efficiency and lower fabrication cost. Herein, we review semi-transparent perovskite cell terms mechanisms translucent structure, transparent electrodes, charge transport layer, component modification. In addition, recent progress research development 4T is summarized, with emphasis on influence structure Finally, discuss challenges associated suggest directions commercialization.

Язык: Английский

---

Application of PACz-Based Self-Assembled Monolayer Materials in Efficient Perovskite Solar Cells

ACS Applied Materials & Interfaces, Год журнала: 2024, Номер 16(47), С. 64424 - 64446

Опубликована: Ноя. 16, 2024

Due to the advantages of low interface resistance, high work function, and stability, PACz family materials have developed rapidly in p-i-n structure perovskite solar cells (PSCs) recent years. Numerous studies shown that PSCs prepared on basis or their derivatives as hole transport layers (HTLs) generally exhibit superior performance compared organic HTL PTAA inorganic NiO

Язык: Английский

---

Synergistic Interface Optimization of Inverted Methylamine-Free Perovskite Solar Cells: A Study of Experiments, Calculations, and Numerical Simulations

ACS Sustainable Chemistry & Engineering, Год журнала: 2024, Номер 12(36), С. 13609 - 13621

Опубликована: Авг. 23, 2024

The power conversion efficiencies (PCEs) of inverted methylammonium (MA)-free perovskite solar cells (PSCs) have yet to match those their tricationic counterparts and conventional PSCs, due in part suboptimal carrier transport, the inadequate morphology hole transport layers (HTLs), inferior crystallinity MA-free films. Herein, we address these challenges by introducing a nickel oxide (NiOx) film as nucleation layer facilitate formation dense uniform self-assembled monolayer 2-(3,6-dimethoxycarbazol-9-yl)ethylphosphonic acid (MeO-2PACz) an HTL bilayer, which enhances improves energy level alignment between at buried interface. Subsequent top surface passivation with 2-phenylethylamine hydroiodide (PEAI) results 2D/3D heterojunction perovskite, leading high PCE 22.91% excellent long-term operational stability resulting device. SCAPS-1D numerical simulations elucidate that structure interface significantly impacts PCEs, considering effects defects, bulk on device performance. Comprehensive predict optimal configuration capable achieving 27.35%. This investigation offers novel insights into properties cesium-formamidinium (CsFA)-based perovskites consequences shifts, advancing field PSC design optimization.

Язык: Английский

---

Suppressing Hole Accumulation Through Sub‐Nanometer Dipole Interfaces in Hybrid Perovskite/Organic Solar Cells for Boosting Near‐Infrared Photon Harvesting

Advanced Materials, Год журнала: 2024, Номер unknown

Опубликована: Сен. 30, 2024

Abstract The potential of hybrid perovskite/organic solar cells (HSCs) is increasingly recognized owing to their advantageous characteristics, including straightforward fabrication, broad‐spectrum photon absorption, and minimal open‐circuit voltage ( V OC ) loss. Nonetheless, a key bottleneck for efficiency improvement the energy level mismatch at perovskite/bulk‐heterojunction (BHJ) interface, leading charge accumulation. In this study, it demonstrated that introducing uniform sub‐nanometer dipole layer formed B3PyMPM onto perovskite surface effectively reduces 0.24 eV band offset between donor BHJ. This strategic modification suppresses recombination loss, resulting in noticeable 30 mV increase balanced carrier transport, accompanied by 5.0% fill factor. Consequently, HSCs achieve power conversion 24.0% developed, new record Pb‐based with remarkable short‐circuit current 4.9 mA cm −2 , attributed enhanced near‐infrared harvesting.

Язык: Английский

---

Homogeneous crystallization of MA-free, wide-bandgap perovskite films via self-assembled monolayer capping for laminated silicon/perovskite tandem solar cells

Chemical Engineering Journal, Год журнала: 2024, Номер unknown, С. 156798 - 156798

Опубликована: Окт. 1, 2024

Язык: Английский

---

Advancing Self‐Assembled Molecules Toward Interface‐Optimized Perovskite Solar Cells: from One to Two

Advanced Materials, Год журнала: 2025, Номер unknown

Опубликована: Апрель 29, 2025

Abstract Perovskite solar cells (PSCs) have rapidly gained prominence as a leading candidate in the realm of solution‐processable third‐generation photovoltaic (PV) technologies. In high‐efficiency inverted PSCs, self‐assembled monolayers (SAMs) are often used hole‐selective layers (HSLs) due to advantages high transmittance, energy level matching, low non‐radiative recombination loss, and tunable surface properties. However, SAMs been recognized suffer from some shortcomings, such incomplete coverage, weak bonding with substrate or perovskite, instability, so on. The combination different so‐called co‐SAM is an effective strategy overcome this challenge. Perspective, latest achievements molecule design, deposition method, working principle, application discussed. This comprehensive overview milestones advancing research field, coupled in‐depth analysis improved interface properties using approach, aims offer valuable insights into key design principles. Furthermore, lessons learned will guide future development SAM‐based HSLs perovskite‐based optoelectronic devices.

Язык: Английский

---