Organic photodetector with built-in amplification for the detection of visible light with low optical power
Journal Article
·
· Organic Electronics
- Georgia Institute of Technology, Atlanta, GA (United States); Georgia Institute of Technology
- Georgia Institute of Technology, Atlanta, GA (United States)
We report on an organic-based photodetector that integrates a dual-gate organic thin-film transistor (DG-OTFT) with an organic photodiode (OPD) to produce a device with a high effective responsivity at low optical power and video-rate compatible response. In this device, the OPD operates in photovoltaic mode, instead of the commonly used photoconductive mode, to modulate one of the gate voltages of the DG-OTFT. Effective responsivity values of 10 A W–1 are measured at optical power values lower than 10 nW at 635 nm. Here, modeling of the operation of this new photodetector suggests that effective responsivity values up to 105 A W–1 can be achieved at optical powers of 1 nW using current printing technology and state-of-the-art organic semiconductors.
- Research Organization:
- Georgia Tech Research Corporation, Atlanta, GA (United States)
- Sponsoring Organization:
- USDOE National Nuclear Security Administration (NNSA)
- Grant/Contract Number:
- NA0003921
- OSTI ID:
- 1763445
- Alternate ID(s):
- OSTI ID: 1780440
- Journal Information:
- Organic Electronics, Journal Name: Organic Electronics Vol. 90; ISSN 1566-1199
- Publisher:
- ElsevierCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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