Heterojunction Engineering of Multinary Metal Sulfide‐Based Photocatalysts for Efficient Photocatalytic Hydrogen Evolution

Advanced Materials, Год журнала: 2023, Номер 36(11)

Опубликована: Дек. 2, 2023

Photocatalytic hydrogen evolution (PHE) via water splitting using semiconductor photocatalysts is an effective path to solve the current energy crisis and environmental pollution. Heterojunction photocatalysts, containing two or more semiconductors, exhibit better PHE rates than those with only one owing altered band alignment at interface stronger driving force for charge separation. Traditional binary metal sulfide (BMS)-based heterojunction such as CdS, MoS

Язык: Английский

---

Flexible and Stretchable Light-Emitting Diodes and Photodetectors for Human-Centric Optoelectronics

Chemical Reviews, Год журнала: 2024, Номер 124(3), С. 768 - 859

Опубликована: Янв. 19, 2024

Optoelectronic devices with unconventional form factors, such as flexible and stretchable light-emitting or photoresponsive devices, are core elements for the next-generation human-centric optoelectronics. For instance, these deformable can be utilized closely fitted wearable sensors to acquire precise biosignals that subsequently uploaded cloud immediate examination diagnosis, also used vision systems human-interactive robotics. Their inception was propelled by breakthroughs in novel optoelectronic material technologies device blueprinting methodologies, endowing flexibility mechanical resilience conventional rigid devices. This paper reviews advancements soft technologies, honing on various materials, manufacturing techniques, design strategies. We will first highlight general approaches fabrication, including appropriate selection substrate, electrodes, insulation layers. then focus materials diodes, their integration strategies, representative application examples. Next, we move photodetectors, highlighting state-of-the-art fabrication methods, followed At end, a brief summary given, potential challenges further development of functional discussed conclusion.

Язык: Английский

---

Surface Nanostructure Fabrication by Initiated Chemical Vapor Deposition and Its Combined Technologies

ACS Macro Letters, Год журнала: 2025, Номер unknown, С. 214 - 224

Опубликована: Фев. 3, 2025

Initiated chemical vapor deposition (iCVD) is a versatile technique that enables the direct growth of nanostructures and surface modification such structures. Unlike traditional CVD methods, iCVD operates under mild conditions, allowing for damage-free processing delicate substrates. It can produce highly uniform polymer layers, with thicknesses ranging from over 15 μm to sub-10 nm, conformally coating intricate geometries. The broad range compositions achievable offers precise control chemistry. In this Viewpoint, we present iCVD's mechanisms principles controlling composition morphology deposited layers. We summarize various including nanodomes, nanocones, nanowrinkles, nanoparticles, nanoporous structures are directly fabricated using iCVD. also demonstrate integration other advanced as photo, soft, nanoimprint lithography; template-assisted growth; thermal CVD, leverage advantages multiple methods overcome individual limitations in nanofabrication. Through these combined strategies, show potential creating multifunctional applications across engineering biomedical fields.

Язык: Английский

---

Direct Photopatterning of Colloidal Quantum Dots with Electronically Optimized Diazirine Cross-Linkers

Journal of the American Chemical Society, Год журнала: 2024, Номер 146(42), С. 28895 - 28905

Опубликована: Окт. 9, 2024

Colloidal quantum dots (QDs) with a wide color gamut and high luminescent efficiency are promising for next-generation electronic photonic devices. However, precise scalable patterning of QDs without degrading their properties integration into commercially relevant devices, such as digitally addressable QD light-emitting diode (QLED) displays, remain challenging. Here, we develop electronically optimized diazirine-based cross-linkers nondestructive, direct photopatterning and, ultimately, building the active-matrix QLED displays. The key to cross-linker design is introduction electron-donating substituents that permit formation ground-state singlet carbenes air-stable benign photopatterning. Under ambient conditions, these enable heavy metal-free at resolution over 13,000 pixels per inch using commercial i-line photolithography. patterned layers fully preserved optical optoelectronic properties. Pixelated electroluminescent devices InP/ZnSe/ZnS show peak external 15.3% maximum luminance about 40,000 cd m

Язык: Английский

---

Printed quantum dot photodetectors for applications from the high-energy to the infrared region

Nano Energy, Год журнала: 2024, Номер 125, С. 109539 - 109539

Опубликована: Март 26, 2024

Язык: Английский

---

Review for Micro‐Nano Processing Technology of Microstructures and Metadevices

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Март 5, 2025

Abstract As a popular artificial composite material emerging in recent years, metasurfaces are one of the most likely devices to break through volume limitation conventional optical components due their compact structure, flexible materials, and high modulation resolution beam. With unique arrangement units or made special metasurface can effectively modulate incident light's amplitude, phase, polarization, frequency, thus realizing applications such as communication, imaging, sensing, beam steering. The interaction high‐resolution periodic arrangement, constituent materials makes it possible realize these applications, so researchers should choose appropriate micro‐nano processing technologies when designing preparing metasurface. This review will present related preparation metasurfaces, electron lithography (EBL), femtosecond laser processing, focused ion (FIB), additive manufacturing, nanoimprinting, self‐assembly, respectively. In addition, classical techniques wet lithography, plasma deep reactive etching (DRIE), photolithography be introduced. Their development history functions described detail, examples micro‐nano‐structures different branches presented, well some using techniques. this paper has produced several tables describing technologies, outlining resolution, advantages disadvantages, on. Hopefully, provide with options ideas for metasurfaces.

Язык: Английский

---

Solution-Processed Quantum Dot Micropatterns: From Liquid Manipulation to High-Performance Quantum Dot Light-Emitting Diode Devices

ACS Nano, Год журнала: 2025, Номер unknown

Опубликована: Март 11, 2025

Micropatterning quantum dots (QDs) is a key process for making high-performance dot light-emitting diodes (QLEDs), which have shown advantages in lighting and displays. So far, various solution processes been developed fabricating micropatterned QDs, where both uniform distribution well-defined edges are desirable. Very recently, with the flourishing of near-eye displays, high-resolution QD micropatterns appear particularly attractive, regretfully progressed poorly due to extremely complicated liquid dynamics at microscale. Here, we systematically discussed several representative strategies micropatterning including transfer printing, photolithography, inkjet structure-confined transfer. The fundamentals involved manipulation applications QLEDs were summarized, as well remaining challenges possible solutions from viewpoint QDs high uniformity, resolution, multicolor. We believe that perspective would inspire fabrication high-quality QLEDs.

Язык: Английский

---

Research progress of quantum dot photolithography patterning and direct photolithography application

Nano Research, Год журнала: 2024, Номер 17(12), С. 10386 - 10411

Опубликована: Авг. 24, 2024

Язык: Английский

---

Atomic layer deposition technology for the development of high-quality, full-colour micro-LED displays

Next Nanotechnology, Год журнала: 2024, Номер 5, С. 100051 - 100051

Опубликована: Янв. 1, 2024

Micro light-emitting diodes (μLEDs) with unparalleled photoelectric characteristics are essential components for developing metaverse-related technologies. Immersive displays require reducing the LED size to micro- or sub-microscale while retaining optimal optoelectronic capabilities. μLEDs, fabricated through quantum dots colour conversion layer (QDs-CCL) process, offer a cost-effective solution achieving full-colour and ultrahigh quality. However, sidewall defects significantly affect optical electrical properties of μLEDs reduced chip size. Furthermore, QDs suffer from low excitation radiation inferior operational stability induced by their intrinsic properties. Atomic deposition (ALD) is promising chemical surface treatment technique self-limiting that can enhance μLED devices. In this review, we explore recent studies on ALD techniques device fabrication. We discuss in detail significant contribution repairing RGB tricolour chips. Moreover, applications protection preparation high-resolution CCLs. Finally, future prospects high-resolution, displays.

Язык: Английский

---

Breaking the Ultraviolet Lithography Limit to Achieve Submicron Quantum Dot Light-Emitting Array Devices

ACS Materials Letters, Год журнала: 2025, Номер unknown, С. 1269 - 1274

Опубликована: Март 6, 2025

Язык: Английский

---