CONFERENCE PROCEEDINGS
Advanced Search
Home > Proceedings > Volume PC12149 > Article
Presentation
30 May 2022 Exploring the intrinsic limits of near-infrared detectors by novel materials design
Sam Gielen, Christina Kaiser, Jochen Vanderspikken, Omar Beckers, Ardalan Armin, Paul Meredith, Koen Vandewal, Wouter Maes
Author Affiliations +
Proceedings Volume PC12149, Organic Electronics and Photonics: Fundamentals and Devices III; PC121490G (2022) https://doi.org/10.1117/12.2620665
Event: SPIE Photonics Europe, 2022, Strasbourg, France
Abstract
Organic photodetectors (OPDs) with a performance comparable to that of conventional inorganic ones have recently been demonstrated for the visible regime.[1] However, near-infrared photodetection at a high detectivity has been proven to be more challenging and, to date, the true potential of organic semiconductors in this spectral range (800‒2500 nm) remains largely unexplored. We have recently shown that the main factor limiting the specific detectivity ( ) is non-radiative recombination, which is also known to be the main contributor to open-circuit voltage losses in organic photovoltaics.[2] Based on this finding we concluded that OPDs have the potential to be a useful technology up to 2 μm, given that high external quantum efficiencies can be maintained at these low photon energies. To further elaborate on the fundamentals defining these limitations, a next-generation of ‘defect-free’ organic semiconductors is synthesized. This allows us to investigate the influence of material imperfections (end-capping, homocoupling defects, and other impurities) on the material properties and device performance. In this contribution, we give an overview of the synthetic approaches applied and the latest organic semiconductors for high performance NIR OPDs, approaching their intrinsic limits. [1] N. Li et al., Mater. Sci. Adn Eng., 146, 100643 (2021) [2] S. Gielen et al., Adv. Mater., 32, 2003818 (2020)
Conference Presentation
© (2022) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Citation Download Citation
Sam Gielen, Christina Kaiser, Jochen Vanderspikken, Omar Beckers, Ardalan Armin, Paul Meredith, Koen Vandewal, and Wouter Maes "Exploring the intrinsic limits of near-infrared detectors by novel materials design", Proc. SPIE PC12149, Organic Electronics and Photonics: Fundamentals and Devices III, PC121490G (30 May 2022); https://doi.org/10.1117/12.2620665
ACCESS THE FULL ARTICLE
ORGANIZATIONAL
Sign in with credentials provided by your organization.
INSTITUTIONAL
Select your institution to access the SPIE Digital Library.
SELECT YOUR INSTITUTION
PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.
PERSONAL SIGN IN
No SPIE Account? Create one
PURCHASE THIS CONTENT
SUBSCRIBE TO DIGITAL LIBRARY
50 downloads per 1-year subscription
Members: $195
Non-members: $335 ADD TO CART
25 downloads per 1 - year subscription
Members: $145
Non-members: $250 ADD TO CART
PURCHASE SINGLE ARTICLE
Includes PDF, HTML & Video, when available
Members: $17.00
Non-members: $21.00 ADD TO CART
PROCEEDINGS
 PRESENTATION
WATCH
PRESENTATION SAVE TO MY LIBRARY
GET CITATION
Advertisement
Advertisement
KEYWORDS
Sensors
Organic semiconductors
Photodetectors
External quantum efficiency
Lithium
Near infrared
Organic photovoltaics
RELATED CONTENT
Subscribe to Digital Library
Receive Erratum Email Alert
Back to Top