solid state lighting
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2022 ◽  
Vol 243 ◽  
pp. 118650
Author(s):  
Sayed Ali Khan ◽  
Noor Zamin Khan ◽  
Yinong Xie ◽  
Muhammad Rauf ◽  
Ikhtisham Mehmood ◽  
...  

Luminescence ◽  
2022 ◽  
Author(s):  
Nguyen Mai Cao Hoang Phuong Lan ◽  
Pham Van Huan ◽  
Nguyen Huu Thong ◽  
Duy‐Hung Nguyen ◽  
Nguyen Duc Trung Kien ◽  
...  

2022 ◽  
Author(s):  
Wenhao Shao ◽  
Hanjie Jiang ◽  
Ramin Ansari ◽  
Paul Zimmerman ◽  
Jinsang Kim

Metal-free purely organic phosphors (POPs) are emerging materials for display technologies, solid-state lighting, and chemical sensors. However, due to limitations in contemporary design strategies, the intrinsic spin-orbit coupling (SOC) efficiency...


CrystEngComm ◽  
2022 ◽  
Author(s):  
Shoujun Ding ◽  
Hao Ren ◽  
Wenpeng Liu ◽  
Ai-Feng He ◽  
Xubing Tang ◽  
...  

Exploring new visible laser crystals is of great significance to the development of diode pumped all-solid-state visible lasers and solid-state lightings. In this work, high concentration (10 at.%) Er3+ ions...


2022 ◽  
Author(s):  
Seungmin Myeong ◽  
Bumsoo Chon ◽  
Samir Kumar ◽  
Ho-Jin Son ◽  
Sang Ook Kang ◽  
...  

Quantum dots (QDs) have emerged as an important class of material due to their excellent photonic properties and durability for diverse applications such as solid-state lighting, energy conversion, display, biomedicine,...


2021 ◽  
Author(s):  
Y. Ohno ◽  
G. Zissis ◽  
J. Gaudemer ◽  
J. Dubard ◽  
J.S. Oh ◽  
...  

The global interlaboratory comparison (IC 2017) on measurements of solid-state lighting (SSL) products with goniophotometers was conducted under the International Energy Agency 4E Solid State Lighting Annex with 36 participating laboratories from 19 countries with a total of 42 goniophotometric instruments including mirror-type, near-field type and source-rotating type goniophotometers. A narrow-beam LED lamp and three different types of LED luminaires, including a street lighting luminaire, were used as comparison artefacts for measurements of 16 different quantities. These included electrical, photometric, and colorimetric quantities, and goniophotometric quantities such as centre beam intensity, beam angle, partial flux (15° cone angle), and angular colour uniformity. CIE S 025 was used as the test method. The results demonstrated overall good agreement on luminous flux and colour quantities, however, larger variations and various problems were identified in goniophotometric quantity results. Near-field type and source-rotating type goniophotometers showed equivalent accuracies overall to those of far-field mirror type goniophotometers.


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