scholarly journals Near 100 % quantum efficiency 1550-nm broad spectrum photodetector

2022 ◽  
Author(s):  
Yang Shen ◽  
Xingjun Xue ◽  
Andrew Jones ◽  
Yiwei Peng ◽  
Junyi Gao ◽  
...  
2021 ◽  
Author(s):  
Tao An ◽  
Suiyang Liu

Abstract This paper proposes an inverted ternary organic photodetector (OPD), whose structure is ITO/PEIE/PC61BM/P3HT:PCPDTBT/MoO3 /Al. The use of PEIE as the cathode buffer layer avoids the influence of acidic PEDOT:PSS on the surface and life of the conventional device . The preparation of the ternary active layer ensures the photoelectric characteristics of the device in the visible-infrared broad spectrum range. In this experiment, the effect of PEIE thickness on the working mode of the device was studied by changing the concentration of the spin-coated PEIE solution. Finally, when the solution of PEIE is less than 0.45wt%, the device works in the diode mode, on the contrary, it works in the photoconductive mode. And under 550nm illumination (optical power 4.02mW/cm2) , the device achieves a responsivity of 1.64A/W and an external quantum efficiency of 370%.


2017 ◽  
Vol 2 (1) ◽  
pp. 56-68 ◽  
Author(s):  
Amy L. Donaldson ◽  
Karen Krejcha ◽  
Andy McMillin

The autism community represents a broad spectrum of individuals, including those experiencing autism, their parents and/or caregivers, friends and family members, professionals serving these individuals, and other allies and advocates. Beliefs, experiences, and values across the community can be quite varied. As such, it is important for the professionals serving the autism community to be well-informed about current discussions occurring within the community related to neurodiversity, a strengths-based approach to partnering with autism community, identity-first language, and concepts such as presumed competence. Given the frequency with which speech-language pathologists (SLPs) serve the autism community, the aim of this article is to introduce and briefly discuss these topics.


2005 ◽  
Vol 125 ◽  
pp. 193-196 ◽  
Author(s):  
S. L. Oliveira ◽  
S. M. Lima ◽  
T. Catunda ◽  
H. Vargas ◽  
L. A.O. Nunes ◽  
...  

2011 ◽  
Vol 49 (08) ◽  
Author(s):  
M Noll ◽  
S Berchtold ◽  
J Lampe ◽  
M Bitzer ◽  
UM Lauer
Keyword(s):  

1991 ◽  
Vol 4 (04) ◽  
pp. 112-115 ◽  
Author(s):  
Julia Blackmore ◽  
Lesley Phillips

SummaryA Kirschner-Ehmer device was used to stabilize caudal lumbar fractures/luxations in three dogs weighing 12 kg or less. A through and through Kirschner-Ehmer device maintained alignment during the healing process using the appropriate sized rods and clamps. Postoperative management included strict cage confinement and oral broad spectrum systemic antibiotics for up to two weeks after removal of the Kirschner-Ehmer device. In all three cases, the fractures/luxations were healed within six to eight weeks. The Kirschner-Ehmer device could then be removed with sedation or general anaesthesia.


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