Si Substrate Effect on Characteristics of Solid State Incandescent Light Emitting Devices

2021 ◽  
Vol 104 (3) ◽  
pp. 47-53
Author(s):  
Jia Quan Su ◽  
Yue Kuo
MRS Advances ◽  
2020 ◽  
Vol 5 (39) ◽  
pp. 2033-2041
Author(s):  
Abhinav Shukla ◽  
Yue Kuo ◽  
Tyler W. Kuo

AbstractIn this paper, the light emission phenomena over solid-state incandescent light emitting devices have been modelled based on Planck's law of blackbody radiation. The emission spectra from the thermal excitation of nano-resistors with and without inclusion of an Indium Tin Oxide (ITO) or amorphous silicon (a-Si) thin film filter is simulated and compared with those measured from actual devices. The simulated emission spectra are further utilized to study the light characteristics for SSI-LED with ITO, a-Si and polycrystalline silicon (poly-Si) thin film filters.


2018 ◽  
Vol 73 (6) ◽  
pp. 555-558 ◽  
Author(s):  
Zhi-Qing Peng ◽  
Rong Chen ◽  
Wen-Lin Feng

AbstractNovel luminescent materials Ca3-xSi2O7: xPr3+ were successfully prepared by the high-temperature solid-state method. The crystal structure, morphology, and optical spectrum were characterised by X-ray diffraction (XRD), scanning electron microscopy (SEM), and spectroscopy, respectively. The XRD patterns of the samples indicate that the crystal structure is monoclinic symmetry. The SEM shows that the selected sample has good crystallinity although its appearance is irregular and scalelike. The peak of the excitation spectrum of the sample is located at around 449 nm, corresponding to 3H4→3P2 transition of Pr3+. The peak of the emission spectrum of the sample is situated at around 612 nm which is attributed to 3P0→3H6 transition of Pr3+, and the colour is orange-red. The optimum concentration for Pr3+ replaced Ca2+ sites in Ca3Si2O7: Pr3+ is 0.75 mol%. The lifetime (8.48 μs) of a typical sample (Ca2.9925Pr0.0075)Si2O7 is obtained. It reveals that orange-red phosphors Ca3-xSi2O7: xPr3+ possess remarkable optical properties and can be used in white light emitting devices.


2021 ◽  
Vol 187 ◽  
pp. 109077
Author(s):  
Kumar Godugu ◽  
Sultana Shaik ◽  
Mohammad Khaja Mohinuddin Pinjari ◽  
Trivikram Reddy Gundala ◽  
Dwaraka Viswanath Chellappa Subramanyam ◽  
...  

2014 ◽  
Vol 26 (16) ◽  
pp. 2459-2473 ◽  
Author(s):  
Lei Ying ◽  
Cheuk-Lam Ho ◽  
Hongbin Wu ◽  
Yong Cao ◽  
Wai-Yeung Wong

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