An Algorithm for Proposed MOE (PMOE) that Extracts Parameters from Models of OTFTs DOI

R. Kanagavaratharajan,

A. Kavitha

Published: March 14, 2024

Organic transistors are becoming an appealing alternative to conventional semiconducting devices in a wide range of application industries thanks their unique characteristics. Nonetheless, it might be good idea use the proper circuital models simulate behavior during construction electronic circuits and/or boards before fully utilizing them. Hence, is imperative precisely extract stricture value from those order provide valuable libraries for hardware design surroundings. To solve this issue, method that continuously optimizes model parameters Transistors on thin Film (OTFT) using Single- and Proposed Multi-Objective Evolutionary (MOE) Algorithms presented. In establish optimum fit with empirical transfer features, initially coarsely approximated; estimations then refined by matching experimental mobility values multi-objective technique. P'type N'type OTFTs have various channel lengths, so estimating was necessary assess method's performance. The findings demonstrate all assessed lengths can suitable obtained recommended method.

Language: Английский

Effect of Single-Crystal TiO2/Perovskite Band Alignment on the Kinetics of Electron Extraction DOI Creative Commons

Xiangtian Chen,

Hannu P. Pasanen, Ramsha Khan

et al.

The Journal of Physical Chemistry Letters, Journal Year: 2024, Volume and Issue: 15(7), P. 2057 - 2065

Published: Feb. 15, 2024

The kinetics of electron extraction at the transfer layer/perovskite interface strongly affects efficiency a perovskite solar cell. By combining transient absorption and time-resolved photoluminescence spectroscopy, process between FA0.83Cs0.17Pb(I0.83Br0.17)3 TiO2 single crystals with different orientations (100), (110), (111) were probed from subpicosecond to several hundred nanoseconds. It was revealed that band alignment constituents influenced relative process. TiO2(100) showed fastest overall hot transfer, owing largest conduction Fermi level offset compared FA0.83Cs0.17Pb(I0.83Br0.17)3. found an early accumulation in these systems can have influence on following nanosecond time scale. Furthermore, existence potential barrier TiO2/perovskite also by performing excitation fluence-dependent measurements.

Language: Английский

Citations

8
Superiority of Strontium-Doped Barium Titanate as an Electron Transport for Perovskite Solar Cells for Enhanced Efficiency and Thermal Stability DOI
M. Mahmood, Mohammad Tariqul Islam,

Md Samiul Islam

et al.

Transactions of Tianjin University, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 28, 2025

Language: Английский

Citations

0
Hydrangea-like TiO2/Bi2MoO6 porous nanoflowers triggering highly sensitive electrochemical immunosensing to tumor marker DOI
Ruizhuo Ouyang,

Meina Feng,

Jinyao Liu

et al.

Microchimica Acta, Journal Year: 2024, Volume and Issue: 191(5)

Published: April 13, 2024

Language: Английский

Citations

3
Al-Mg co-doped TiO2 thin film as a promising ETL for perovskite solar cells: An experimental and DFT investigation DOI
Ariful Islam,

Raisa Tahiyah,

Md. Ruman Sheikh

et al.

Solar Energy, Journal Year: 2024, Volume and Issue: 276, P. 112709 - 112709

Published: June 20, 2024

Language: Английский

Citations

3
Cu-Doped TiO2 Thin Films by Spin Coating: Investigation of Structural and Optical Properties DOI Creative Commons

Syrine Sassi,

Amal Bouich, Anouar Hajjaji

et al.

Inorganics, Journal Year: 2024, Volume and Issue: 12(7), P. 188 - 188

Published: July 8, 2024

Cu-doped TiO2 films were synthesized directly on FTO glass with a spin coating method. With variation in copper amount, samples prepared 0%, 1%, 2%, 4% and 8% of dopant concentrations. Morphological structural characterization undoped investigated the obtained results showed small, spherical shapes nanoparticles forming thin film top their preferred orientation anatase (101), which is same for each sample. However, this peak exhibited slight shift 2% sample, related to inflation microstrain compared other samples. For optical properties, sample displayed highest transmittance whereas lowest band gap energy 2.96 eV. Moreover, PL intensity seems be at its due present peaking defects structure, shows whole new signal that oxide. These properties make material potential candidate perform as an electron transport layer (ETL) solar cells enhance power conversion efficiency.

Language: Английский

Citations

3
Direct Visualization of Interfacial Charge Transfer in CsPbBr3 Perovskite Solar Cells Using Pattern-Illumination Time-Resolved Phase Microscopy DOI

Tatsuki Ito,

Kenji Katayama

ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown

Published: April 25, 2025

This study follows our previous investigation of charge carrier dynamics at the hole transport layer (HTL)/perovskite (CsPbBr3) interface, where pattern-illumination time-resolved phase microscopy (PI-PM) revealed that HTLs significantly influence extraction and recombination processes. In absence an HTL, CsPbBr3 exhibited dominant dynamics, which were mitigated by introduction Spiro-OMeTAD P3HT, with latter showing superior efficiency. this follow-up study, we extend analysis to electron layers (ETLs) full ETL/perovskite/HTL structure, investigate modulation separation interfaces. Our results show TiO2, a widely used ETL, enhances but still exhibits due interfacial states. Li Pt doping further improve separation, Pt-doped TiO2 demonstrating most significant reduction in longest lifetimes. When combined HTLs, choice HTL impacts extraction: P3HT facilitates more efficient removal than Spiro-OMeTAD. The effective configuration for suppression residual carriers was achieved as ETL HTL. These findings provide comprehensive understanding inorganic perovskite solar cells, importance both selection optimizing photovoltaic performance.

Language: Английский

Citations

0
Low-temperature preparation of titanium dioxide thin layer for highly efficient CsPbI3 perovskite solar cells DOI

Wenming Chai,

Weidong Zhu,

Dazheng Chen

et al.

Materials Today Energy, Journal Year: 2023, Volume and Issue: 37, P. 101410 - 101410

Published: Sept. 4, 2023

Language: Английский

Citations

7
Overview: Photovoltaic Solar Cells, Science, Materials, Artificial Intelligence, Nanotechnology and State of the Art DOI
Carlton A. Taft, Jose Gabriel Solano Canchaya

Engineering materials, Journal Year: 2023, Volume and Issue: unknown, P. 27 - 67

Published: Nov. 30, 2023

Language: Английский

Citations

6
Recent insights into the transformative role of Graphene‐based/TiO2 electron transport layers for perovskite solar cells DOI Creative Commons

T. Sewela,

R.O. Ocaya, Thembinkosi D. Malevu

et al.

Energy Science & Engineering, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 18, 2024

Abstract Perovskite solar cells (PSCs) hold great promise for cost‐effective and high‐efficiency energy conversion. However, in practice, they face practical limitations due to suboptimal electron transport, inadequate hole‐suppression, photocatalytic instability, susceptibility other environmental factors. Many transition metal oxides such as ZnO TiO 2 have important excitonic properties that make them good transport layer (ETL) materials PSCs. many of the PS arise from inherent issues with these oxides. The high interest is its low toxicity, chemical stability, potential enhance performance through doping materials. main are poor visible‐light response by virtue wide bandgap ~3.2 eV, electron‐hole (e‐h) recombination rates, which directly responsible current densities. Transition oxide enhancements occur using either internal or surface sensitization. Of added materials, graphene has exceptional electrical conductivity, mobility, large area, excellent mechanical properties, making it a near‐ideal candidate improve . This review examines advances graphene‐TiO (g‐TiO ) composites ETL application. By forming composite , can significantly reduce losses, overall stability We present detailed rationale analysis g‐TiO improved efficiency, enhanced boosted PSC objective providing an authoritative resource field.

Language: Английский

Citations

1
Infiltration of CsPbI3:EuI2 Perovskites into TiO2 Spongy Layers Deposited by gig-lox Sputtering Processes DOI Creative Commons
C. Spampinato, Paola La Magna, Salvatore Valastro

et al.

Solar, Journal Year: 2023, Volume and Issue: 3(3), P. 347 - 361

Published: June 27, 2023

Perovskite solar cells have become a popular alternative to traditional silicon due their potential provide high-efficiency, low-cost, and lightweight energy harvesting solutions. However, the multilayer architecture of perovskite demands careful investigation interaction interfacing between various layers, as they play crucial role in determining overall performance cell. In this context, present work aims at analyzing coupling spongy transparent electron-transporting layer (ETL) formulation CsPbI3:EuI2. The ETL used is mesoporous TiO2 called “gig-lox” (grazing incidence angle geometry–local oxidation), which has been optimized boost with for achieving highly interconnected blend materials. gig-lox shows high surface wettability respect solution, especially after pre-annealing 500 °C, enables material deeply infiltrate throughout it. estimated by contact measurements, while deep infiltration demonstrated through X-ray diffraction transmission electron microscopy analyses. Thanks achieved infiltration, photo-generated charge injection from into oxide enhanced use planar compact oxide, shown photoluminescence measurements. mainstay approach resides that deposited solvent-free sputtering method up-scalable industrial throughput.

Language: Английский

Citations

3