solid state UV detectors ? - Page 1
Forum section: electronics / projects

author: wedgetail
author_rank: Contributor
timestamp: October 02, 2021, 08:02:52 am
content: I have been searching quite lot on google and while getting interesting information in research papers, actually finding out if solid state UV detectors are available not many hits at the moment.Made a very quick search on the Forum bit only got one hit about gas leak detection, link to a company. A very quick look did not immediately attract my attention/Is there anybody on this Forum who know about such or are engaged designing/using those?Specifically what I am looking for is a challenge: detecting very low UV radiation in the 200 to 400 nm range optically blind would be a great bonus.

author: DC1MC
author_rank: Super Contributor
timestamp: October 02, 2021, 08:05:28 am
content: https://www.waveshare.com/uv-sensor.htmTwo variants: 200-370nm and 280-430nm

author: DC1MC
author_rank: Super Contributor
timestamp: October 02, 2021, 08:12:54 am
content: Detectors themselves:Profi:https://www.lasercomponents.com/de-en/product/sic-photodiodes-200-400-nm/http://www.roithner-laser.com/pd_uv.htmlhttps://sglux.de/en/product-category/sic-uv-photodiodes/Pro-summerUse the chinesium detectors

author: jpanhalt
author_rank: Super Contributor
timestamp: October 02, 2021, 09:46:03 am
content: Search on CCD UV sensors:Google search:https://www.google.com/search?q=ccd+sensor+sensitivity+to+UV&source=hp&ei=PClYYZyHG4vWtAbG56iIDA&iflsig=ALs-wAMAAAAAYVg3TPf5s99y6_8Hd3i1anBSNwByRMIJ&ved=0ahUKEwicldrZt6vzAhULK80KHcYzCsEQ4dUDCAk&uact=5&oq=ccd+sensor+sensitivity+to+UV&gs_lcp=Cgdnd3Mtd2l6EAMyCAghEBYQHRAeOgUIABCRAjoLCC4QgAQQxwEQowI6DgguEIAEELEDEMcBENEDOg4ILhCABBCxAxDHARCjAjoECAAQQzoFCC4QgAQ6CwguEIAEEMcBEK8BOggIABCABBCxAzoNCC4QxwEQ0QMQQxCTAjoKCC4QxwEQrwEQQzoHCAAQsQMQQzoHCAAQyQMQQzoFCAAQgAQ6CAgAEIAEEMkDOgYIABAWEB46CAgAEIYDEIsDUIELWJFDYIFOaABwAHgAgAFziAHOE5IBBDIzLjWYAQCgAQG4AQI&sclient=gws-wizCCD specific:https://www.princetoninstruments.com/learn/camera-fundamentals/sensor-improvements-to-enhance-uv-sensitivity-from-10-400-nm(NB: It defines the UV spectrum differently than the common A,B, C nomenclature)

author: wedgetail
author_rank: Contributor
timestamp: October 02, 2021, 02:14:01 pm
content: Thank you all, at a quick glance some very interesting devices hereI will study a bit closer in the coming days

author: JKTreu
author_rank: Newbie
timestamp: October 08, 2021, 02:14:33 pm
content: If you are willing to slap a TIA on it, these UV-photodiodes might be what you are looking for. The die is pretty small on this one so the gain of the TIA has to be pretty high. Do you know the power density of the UV-radiation you are working with? This type is practically blind in VIS. Costs about 2USD/@100pc at Digikey.http://www.geni-uv.com/download/products/GUVV-C20SD.pdfThere are several similar devices from this manufacturer, so check out their website.http://www.geni-uv.com/sub0201.php

author: richard.cs
author_rank: Super Contributor
timestamp: October 08, 2021, 05:24:00 pm
content: UV photodiodes are clearly the right thing here, but if you don't require somethingspecifiedas a photodetector it is also possible to use UV LEDs as your optical detector. Some of them are available with quite large die areas and are reasonably sensitive if (mis)used in this way, generally to wavelengths shorter than their normal emission down to perhaps half that wavelength (I am not sure what causes this second limitation, but I have observed it).