Discover Insights
Connect with ExcellenceDGIST Scholar
Recently Added Items
more
Strategies to improve the performance of perovskite solar cells with Spiro-OMeTAD as HTM: A comprehensive review
The performance of perovskite solar cells (PSCs) is critically influenced by the properties of the hole transport layer (HTL), with Spiro-OMeTAD remaining the most widely adopted organic hole transfer material (HTM) due to its favorable energy levels and compatibility with perovskite absorbers. However, its intrinsic limitations-such as low conductivity, susceptibility to environmental degradation, and interfacial instability-necessitate advanced engineering strategies. This review provides a co
2026-06
Correlated singular flat bands on the surface pentagonal lattice of ferromagnetic CoS2
Flat bands have been proposed in various geometrically frustrated lattices, yet their experimental realization has been limited only to the two-dimensional (2D) kagome and three-dimensional (3D) pyrochlore lattices. While synthesizing bulk crystals with desired lattice geometry is generally challenging, the surfaces of 3D bulk materials sometimes naturally host 2D lattice structures hardly achievable in 2D bulk crystals. Thus, the electrons localized on such 2D surfaces can be a new platform for
2026-06
Dimensional Phase Reconstruction in 2D/3D Perovskite Solar Cells: Stability Implications Under Thermal, Light, and Bias Stresses
Two-dimensional/three-dimensional (2D/3D) perovskite heterostructures have emerged as a promising strategy to enhance the stability of halide perovskite solar cells (PSCs), entailing an efficient energy landscape and defect-passivation capabilities of the 2D perovskite layer. However, mounting experimental evidence shows that the 2D/3D phase interface is not a static structural entity, but rather a dynamic system susceptible to operational stresses. In this review, we systematically examine how
2026-09
Semiconducting poly(3-hexylthiophene) (P3HT)-functionalized rayon for hybrid mechanical-thermal energy harvesting in fabric triboelectric nanogenerators
The fabric triboelectric nanogenerator (F-TENG) is emerging as a promising nanogenerator platform for wearable electronics and electronic textiles. In this work, a modified fabric incorporating the semiconductor polymer poly (3-hexylthiophene) (P3HT) is designed to address the limited output performance by harvesting frictiongenerated waste heat in addition to mechanical energy. The P3HT is incorporated into rayon fabric via a simple coating process, enabling the fabric to function as a dual mec
2026-01
Monthly Top Download
more
Edge-Server Workload Characterization in Vehicular Computation Offloading: Semantics and Empirical Analysis
Edge server-assisted computation offloading enables vehicles to leverage server compute resources to deliver connected services, overcoming the limitations of onboard resources. Understanding the compute workloads of edge servers is crucial for effective resource management and scheduling, yet this task is challenging due to the complex interplay of factors such as vehicle mobility and computation offloading patterns. To address this, we propose an empirical analysis framework that systematicall
2024-06
PDF
Recent Advances in Ultra-High-Speed Wireline Receivers with ADC-DSP-Based Equalizers
High-speed wireline data transceivers (TRX) with analog-to-digital converter (ADC) followed by digital signal processor (DSP) on the receiver (RX) equalizer became popular for applications requiring >100 Gb/s per-lane data rate over long-reach (LR) channels, especially for datacenter applications. With the digital-to-analog converter (DAC)-based transmitter (TX) including DSP-based TX signal processing, the overall structure of DAC/ADC-DSP-based wireline TRXs became similar to modulator/demodula
2024-11
PDF
Empirical Analysis of MAVLink Protocol Vulnerability for Attacking Unmanned Aerial Vehicles
Recently, unmanned aerial vehicles (UAVs), or the so-called drones, have been used in various applications. In particular, UAVs are used for rescue systems, disaster detection, and military purposes, as well as for leisure and commercial purposes. UAVs that are controlled over networks by ground control stations (GCS) can provide various services with expanded activity area. It is thus of critical importance to investigate the vulnerability of the drone system. In this paper, we focus on UAVs co
2018-08
PDF
Low-Cost and Easy-to-Build Soft Robotic Skin for Safe and Contact-Rich Human - Robot Collaboration
Although many soft robotic skins have been introduced, their use has been hindered due to practical limitations, such as difficulties in manufacturing, poor accessibility, and cost inefficiency. To solve this, we present a low-cost, easy-to-build soft robotic skin utilizing air-pressure sensors and 3D-printed pads. In our approach, we utilized digital fabrication and robot operating system (ROS) to facilitate the creation and use of the robotic skin. The skin pad was fabricated by printing therm
2024-03
PDF