A TFT-Based On-Chip Optical Sensor for Detection of Chemiluminescence in Lab-on-a-Chip
The chemiluminescent signal in lab-on-a-chip (LOC) is generally weak and also has a short lifetime, hence, a sensitive and fast detector is required for detection. Aiming for acquisition of chemiluminescent signal in LOCs, we report on a thin-film transistor (TFT)-based optical sensor and its differential circuit for on-chip detection of chemiluminescent events. The proposed device and circuit manufactured by an industrial-standard TFT-LCD production line demonstrate a wide dynamic range of over 120dB, a high photoconductive gain of over 100, and a high amplifier transimpedance gain of over 10<sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">8</sup>V/A, making it a great promise for LOCs.
Authors
- Yitong Xu (ORCID: https://orcid.org/0000-0002-7444-8719)
- Weisheng Wu (ORCID: https://orcid.org/0009-0009-4147-0176)
- Kai Wang (ORCID: https://orcid.org/0000-0003-2006-5760)
- Xinghui Liu (ORCID: https://orcid.org/0000-0002-4968-6504)
- Jianxun Huang (ORCID: https://orcid.org/0000-0002-7598-3756)
- Kai Zhuang
Institutions
- Sun Yat-sen University (CN)
- State Key Laboratory of Optoelectronic Materials and Technology
Publication Details
- Journal
- IEEE Electron Device Letters
- Published
- 2025-05-06
- DOI
- https://doi.org/10.1109/led.2025.3567539
- Citations
- 2
- Primary Topic
- Analytical Chemistry and Sensors
- Type
- article
- Field-Weighted Citation Impact
- 1.47
Funders
- National Natural Science Foundation of China
- National Key Research and Development Program of China