Self-calibrating photodiodes for the radiometric linkage to fundamental constants
Public support
Provider
Ministry of Education, Youth and Sports
Programme
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Call for proposals
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Main participants
Český metrologický institut
Contest type
M2 - International cooperation
Contract ID
8B19012
Alternative language
Project name in Czech
Self-calibrating photodiodes for the radiometric linkage to fundamental constants
Annotation in Czech
The overall objective of the project is to develop new experimental techniques for optical power measurements over a wide spectral and dynamic range by the production of an “NMI-on-a-chip” detector developed as a self-calibrating silicon photodiode. The specific objectives are 1. To develop improved and validated 3D charge-transfer models to predict the PQED internal quantum deficiency. The target prediction uncertainty is 10 % of the internal quantum deficiency value. 2. To develop the best possible PQED photodiodes for cryogenic operation by using the improved 3D models and evaluation of passivation layer materials, passivation strategies and charge increasing techniques. To manufacture a batch of optimised PQED photodiodes and to acquire bare-chip photodiodes for room temperature operation. 3. To develop instrumentation and packaging enabling self-calibration of photodiodes. The photodiodes should be operated in both photocurrent and electrical substitution mode with sufficient sensitivity and equivalence between optical and electrical heating over a temperature range from 20 K to 300 K. 4. To provide traceability of the self-calibrating photodiodes to the revised SI by measuring the fundamental constant ratio e/h to 1 ppm uncertainty at cryogenic temperatures and to 0.05 % uncertainty at room temperature for wavelengths from 400 nm to 850 nm over a dynamic range from 10 nW to 10 mW.
Scientific branches
R&D category
VV - Exeperimental development
OECD FORD - main branch
10700 - Other natural sciences
OECD FORD - secondary branch
10700 - Other natural sciences
OECD FORD - another secondary branch
10700 - Other natural sciences
CEP - equivalent branches <br>(according to the <a href="http://www.vyzkum.cz/storage/att/E6EF7938F0E854BAE520AC119FB22E8D/Prevodnik_oboru_Frascati.pdf">converter</a>)
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Completed project evaluation
Provider evaluation
U - Uspěl podle zadání (s publikovanými či patentovanými výsledky atd.)
Project results evaluation
Following the condition that the candidate of financial contribution was evaluated and afterwards selected by international provider in accordance with the rules of the program the Ministry of Education, Youth ans Sports does not realize the evaluation of project results. The project is evaluated only after its approval by an international provider.
Solution timeline
Realization period - beginning
Jun 1, 2019
Realization period - end
May 31, 2022
Project status
U - Finished project
Latest support payment
Feb 21, 2022
Data delivery to CEP
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data delivery code
CEP23-MSM-8B-U
Data delivery date
Jun 30, 2023
Finance
Total approved costs
1,471 thou. CZK
Public financial support
1,471 thou. CZK
Other public sources
0 thou. CZK
Non public and foreign sources
0 thou. CZK