- Titel
- Red-Light-Selective Organic Photodiodes via Optical and Material Tuning for Implantable Sensors
- Zitierfähige Url:
- https://nbn-resolving.org/urn:nbn:de:bsz:14-qucosa2-1002797
- Konferenz
- Organic Photonics + Electronics. San Diego, California, United States, 03.-08.08.2025
- Quellenangabe
- Organic and Hybrid Sensors and Bioelectronics XVIII : 3-8 August 2025
Herausgeber: Ioannis Kymissis
Herausgeber: Emil List-Kratochvil
Herausgeber: Sahika Inal
Erscheinungsort: Bellingham WA, USA
Verlag: SPIE
Erscheinungsjahr: 2025
Titel Schriftenreihe: Proceedings of SPIE
Bandnummer Schriftenreihe: 13590
ISBN: 978-1-5106-9088-2
Artikelnummer: 135900P - Erstveröffentlichung
- 2025
- Abstract (EN)
- Narrowband organic photodiodes (OPDs) are highly attractive for biomedical imaging due to their flexibility, biocompatibility, and compact form. Unlike their inorganic counterparts, OPDs can achieve spectral selectivity through the choice of material and device architecture. This is especially important in fluorescence imaging, where detecting faint signals while blocking out intense excitation light is critical. In this study, we investigated different strategies to achieve red-light-selective OPDs. First, we used an intrinsically narrowband organic absorber material able to absorb red light at relatively low FWHM. Next, we investigated OPDs with charge collection narrowing and a self-filtering approach, both of which demonstrated a strong bichromatic responsivity ratio for red to green light of approximately 125:1 and 20:1, respectively. Subsequently, we incorporated an external absorption filter that blocks blue and green light effectively while allowing red light to transmit onto a broadband-absorbing OPD. The last strategy enabled excellent narrowband red-light detection with a responsivity ratio of up to 66,000:1 for red to green light. The results are promising for future implementation in fluorescence imaging sensors.
- Andere Ausgabe
- Link zum Artikel, der zuerst in „Proceedings of SPIE” bei SPIE, the International Society for Optical Engineering erschienen ist.
DOI: 10.1117/12.3076625 - Freie Schlagwörter (EN)
- Organic Photodiodes, OPDs, Narrowband Organic Photodiodes, Implantable Sensors, Biomedical Imaging, Fluorescence Imaging, Narrowband Optical Filters
- Klassifikation (DDC)
- 620
- Verlag
- SPIE, Bellingham WA, USA
- Förder- / Projektangaben
- Bundesministerium für. Forschung, Technologie und Raumfahrt (BMFTR)
(NeuroLichtOrgEl)
ID: 13XP5137 - Bundesministerium für. Forschung, Technologie und Raumfahrt (BMFTR)
(NeuroLichtOrgEl)
ID: 13XP5239 - Deutsche Forschungsgemeinschaft (DFG)
Graduiertenkollegs
Suprakolloidale Strukturen: Von Materialien zu optischen und elektronischen Bauteilen
(GRK 2767)
ID: 451785257 - Version / Begutachtungsstatus
- angenommene Version / Postprint / Autorenversion
- URN Qucosa
- urn:nbn:de:bsz:14-qucosa2-1002797
- Veröffentlichungsdatum Qucosa
- 26.11.2025
- Dokumenttyp
- Konferenzbeitrag
- Sprache des Dokumentes
- Englisch
- Lizenz / Rechtehinweis
