Back to Search
Start Over
Fabrication of a γ-In2Se3/Si heterostructure phototransistor for heart rate detection.
- Source :
- Journal of Materials Chemistry C; 7/7/2021, Vol. 9 Issue 25, p7888-7892, 5p
- Publication Year :
- 2021
-
Abstract
- A γ-In<subscript>2</subscript>Se<subscript>3</subscript>/Si heterostructure phototransistor with a broadened photoresponse has been developed, presenting a responsivity, specific detectivity and response speed of 10.24 A W<superscript>−1</superscript>, 8.63 × 10<superscript>12</superscript> Jones and 0.76/0.85 ms (rise time/fall time) at 450 nm, respectively. The high responsivity could be attributed to the depressed dark current of the γ-In<subscript>2</subscript>Se<subscript>3</subscript> nanofilm and the high gain arising from the gating effect of the phototransistor. Further analysis reveals that the relatively high responsivity and fast response speed facilitate the application of the device in real-time and accurate health monitoring, such as heart rate detection. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 20507526
- Volume :
- 9
- Issue :
- 25
- Database :
- Complementary Index
- Journal :
- Journal of Materials Chemistry C
- Publication Type :
- Academic Journal
- Accession number :
- 151189542
- Full Text :
- https://doi.org/10.1039/d1tc01837j