Results 71 to 80 of about 1,595 (209)

Optical Characterization of Different Thin Film Module Technologies

International Journal of Photoenergy, 2015
For a complete quality control of different thin film module technologies (a-Si, CdTe, and CIS) a combination of fast and nondestructive methods was investigated.
R. Ebner, B. Kubicek, G. Újvári, S. Novalin, M. Rennhofer, M. Halwachs   +5 more
doaj   +1 more source

Optical Beam Induced Current and Time Resolved Electro-Luminescence in Vertical Cavity Surface Emitting Lasers During Accelerated Aging

IEEE Photonics Journal, 2019
Vertical Cavity Surface Emitting Lasers are characterized under a high magnification optical microscope for reliability during accelerated aging using Optical Beam Induced Current and Electroluminescence imaging and spectroscopy, and also with electrical
Adam W. Bushmaker, Zachary Lingley, Miles Brodie, Brendan Foran, Yongkun Sin   +4 more
doaj   +1 more source

Asymmetric Diphosphane Dioxides With A–π–A–π’–D Scaffolds for High‐Purity Deep‐Blue Luminescence

Chemistry – A European Journal, EarlyView.
Diphosphane dioxide‐based luminophores with donor–π–acceptor– π’–acceptor scaffold enable efficient deep‐blue emission from tunable charge‐transfer states affording high photoluminescence up to 95%. OLEDs reach EQE 4.9%, aided by triplet–triplet annihilation, highlighting a practical route to high‐performance blue emitters.
Eetu Hakkarainen, Zong‐Ying Liu, Jhon Sebastian Oviedo Ortiz, Nicolas Vanthuyne, Jeanne Crassous, Ondřej Mrózek, Fabien B. L. Cougnon, Wen‐Yi Hung, Pi‐Tai Chou, Igor O. Koshevoy, Andrey Belyaev   +10 more
wiley   +1 more source

Dual‐Mode Electrophoretic Displays Enabled by Quantum Dot‐Decorated PR48:2 Pigment Particles and TiO2 for All‐Weather Visibility, Excellent Bistability, and Enhanced Readability

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This study presents a novel quantum dot electrophoretic display (QDEPD), which combines electro‐controlled reflection and optically‐triggered emission to achieve efficient multi‐modal switching within a single pixel. By incorporating multi‐component nanostructures, the system enhances functional integration and multi‐modal response capabilities.
Xingke Zheng, Yun Ye, Hongxing Xie, Yuanyi Liu, Ruihan Lin, Guangyou Liu, Tianyong Guan, Enguo Chen, Tailiang Guo   +8 more
wiley   +1 more source

Contact Resistance Increase in Ga-Doped Silicon Solar Cells at Current Injection and Elevated Temperature Treatments

SiliconPV Conference Proceedings
PERC solar cells based on Gallium p-type doping were treated at elevated temperatures in the range of 80…160°C and current injection. Current injection is conducted in a current-induced degradation (CID) setup in the dark, measuring voltage while ...
Matthias Müller, Mahsa Mohammadi, August Weber, Jonas Kern, Matthias Trempa, Thomas Buck, Johannes Heitmann   +6 more
doaj   +1 more source

Synergistic‐Induced Perovskite Phase Distribution and Lattice Stabilization for Efficient and Stable Sky‐Blue PeLEDs

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
We have developed a multifunctional buried‐interface engineering strategy using phenethylammonium thiocyanate to regulate quasi‐2D perovskite crystallization and stabilize the lattice. The synergistic effects of SCN− and PEA+ steric confinement promote phase redistribution toward n = 2, suppressing interfacial defects and enabling the production of ...
He Dong, Xiao Qin, Hongyan Chen, Mingrui Lv, Xin Wang, Zhuolin Zhan, Jie Hua, Yuan Chai, Mimi Sun, Jianan Dai, Haipeng Jiang, Jin Wang   +11 more
wiley   +1 more source

A Review on the Synthetic Methods for the BODIPY Core

Compounds
Boron-dipyrromethene (BODIPY) has attracted extensive research attention in recent years due to its excellent photophysical properties, good chemical stability, and structural tunability, demonstrating broad application in fields such as fluorescence ...
Ruihan Yang, Hao Guan, Jiayan Jin, Tianran Zheng, Limin He, Yongli Zhang, Luyan Tian, Jianfei Wang, Xiangguang Li   +8 more
doaj   +1 more source

Gas–Solid Interface‐Assisted Growth of Organic Semiconductor Single Crystals: Dimensions, Structures, Mechanisms, and Applications

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Gas–solid interface‐assisted growth strategies have unlocked precise control over crystal structure, morphology, dimension, and molecular packing. The obtained organic semiconductor single crystals represent the ideal candidates for high‐performance organic optoelectronic devices.
Tingyi Yan, Qing Tian, Jinwen Wang, Ke Jiang, Yage Han, Yuanzhuang Ren, Lingyun Li, Xiujuan Zhang, Jiansheng Jie   +8 more
wiley   +1 more source

Visualization of defects in perovskite solar cells using electroluminescence, photoluminescence, and thermal imaging methods

Applied Physics Express
Perovskite solar cells (PSCs) have attracted much attention due to their high-power conversion efficiency and solution processability. Establishing a method to easily evaluate the defects present in PSCs is a key factor in achieving efficient large area ...
Koki Kimura, Itaru Raifuku, Tatsuro Kawamura, Yasuaki Ishikawa   +3 more
doaj   +1 more source

Attention-enhanced DenseNet for robust solar cell defect detection in electroluminescence imaging

Array
The reliability and efficiency of photovoltaic (PV) modules heavily depend on accurate and scalable defect detection. Electroluminescence (EL) imaging provides high-resolution, non-invasive insights into internal faults such as microcracks, finger ...
Meshari A. Al-Ebrahim, Amro A. Nour, Mostafa Abdrabboh, Sabah A.S. Alali   +3 more
doaj   +1 more source