Naslov
Light Dependent Temperature Characteristics of a- Si:H p-i-n Photodiode

Autori
Gradisnik, Vera ; Velican, Karlo ; Gumbarevic, Darko ; Karuza, Marin

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Proceedings of 2021 44th International Convention on Information, Communication and Electronic Technology (MIPRO) / - : Institute of Electrical and Electronics Engineers (IEEE), 2021, 1799-1802

Skup
44th International Convention on Information and Communication Technology, Electronics and Microelectronics (MIPRO 2021) ; Computer in Education (CE 2021)

Mjesto i datum
Opatija, Hrvatska, 27.09.2021. - 01.10.2021

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
a-Si:H, transient thermal characteristics, optical label-free biosensor

Sažetak
As a result of chemical reactions in certain biological samples, thermal energy can be released that affects the transducer response of optical label-free biosensors used in lab-on-chip applications. To improve and understand the sensitivity limitations, the transient thermal characteristics of the a-Si:H p-i-n photodiode are measured and analyzed. We report the results obtained with the device operating at different reverse bias voltages (200 mV and 1 V) in the dark and under illumination with a blue LED. The behavior of the sensor was studied at temperatures ranging from 30 to 55 oC. The temperature of the sample was actively stabilized by a feedback loop. The fluctuations of the photodiode current and its time dependence were observed. These results could explain the increased sensitivity of the photodiode in the previous analysis of biological samples.

Izvorni jezik
Engleski

Znanstvena područja
Fizika, Elektrotehnika

POVEZANOST RADA