loading
Sách, tuyển tập

Photoelectrical Characteristics of UV Organic Thin-film Transistor Detectors / Dao, Thanh Toan

Tác giả : Dao, Thanh Toan

Nhà xuất bản : H. : ĐHQGHN

Năm xuất bản : 2017

Tùng thư : Vol. 33;No. 2 (2017) 74-81

Chủ đề : 1. optoelectronics. 2. organic electronics. 3. Pentacene phototransistor. 4. UV sensor. 5. Article.

Chia sẻ

Thông tin chi tiết

Tóm tắt :

In this paper, a pentacene photo organic thin-film transistor (photoOTFT) was fabricated and characterized. The gate dielectric acted as a sensing layer thanks to it strongly absorbs UV light. Electrical behaviors of photoOTFT were measured under 365 nm UV illumination from the gate electrode side. The current in transistor channel was significantly enhanced by photoelectrons at interface of buffer/gate dielectric. Photosensitivity increased with the light intensity but decreased with the applied gate voltage. Meanwhile the photoresponsivity decreased with the light intensity and increased with the applied gate voltage. The transistor responses well with the pulse of light with many cycles of light-on and light-off were tested. The best photosensitivity, photoresponsivity, rising time and falling time parameters of the device were found to be about 104, 0.12 A/W, and 0.2 s, respectively. The obtained photoelectrical results suggest that the photoOTFT can be a good candidate for practical uses in low-cost UV optoelectronics.
Chia sẻ


Hiển thị MARC

 Thông tin dữ liệu nguồn

 Thư viện  Ký hiệu xếp giá  Dữ liệu nguồn
Đại học quốc gia Hà Nội
https://repository.vnu.edu.vn/handle/VNU_123/55369