Our site saves small pieces of text information (cookies) on your device in order to deliver better content and for statistical purposes. You can disable the usage of cookies by changing the settings of your browser. By browsing our site without changing the browser settings you grant us permission to store that information on your device.
GUILIN LIU1,* , JIANBO SHAO1, XIAO WANG1, YIQING ZHU1, WEIYING QIAN1, GUOHUA LI1
Organic photodio des OPD based on P3HT: PCBM bulk heterojunction were fabricated and characterized under different voltage bias. The photodiodes demonstrated a stable signal around specified wavelength at 550 nm under a reverse bias at 2.5V, showing a potential applicat ion for specific wavelengths detection. The photocurrent responsivity indicated that free charge carriers can be extracted within microseconds after the light cut off. The periodic time was about 2 μs (fastest was 1.5 μs under high intensity condition) und er different light intensity. The transientt echnique was applied to investigate the recombination rate inside of organic photodetector in order to elucidate the dominant decay mechanism. The mobility and charge carrier density values obtained with transie nt absorption spectrum show a result of geminate recombination after exciton separation being the dominant loss mechanism. Although the process was dominated by recombination, OPD worked perfectly in low light condition indicating a potential application in sensing market..
Organic Photodetector, Photocurrent, Transient technique.
GUILIN LIU, JIANBO SHAO, XIAO WANG, YIQING ZHU, WEIYING QIAN, GUOHUA LI, Investigation of photocurrent and recombination dynamics of photodiodes based on polymeric materials, Optoelectronics and Advanced Materials - Rapid Communications, 11, 11-12, November-December 2017, pp.665-670 (2017).
Submitted at: March 20, 2017
Accepted at: Nov. 28, 2017
Optoelectronics and Advanced Materials - Rapid Communications
(2023): 0.5 - 2023 Journal Citation Reports (Clarivate Analytics, 2024)
Active accounts were imported to the new platform and assigned a random password by default. In order to access your account you need to access the login page and go through the Lost Password dialog (involves the system sending you an email with instructions) in order to reset your password. This step is necessary as passwords are kept in hashed form and the new platform uses modern hashing algorithms incompatible with the previous ones.