organic phototransistor
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2022 ◽  
Vol 100 ◽  
pp. 106385
Author(s):  
Hea-Lim Park ◽  
Jongmin Jun ◽  
Min-Hoi Kim ◽  
Sin-Hyung Lee

Author(s):  
Qianqian Du ◽  
Shuchao Qin ◽  
Zhifeng Wang ◽  
Yuquan Gan ◽  
Yuting Zhang ◽  
...  

2021 ◽  
Vol 14 (4) ◽  
pp. 041007
Author(s):  
Hayato Abe ◽  
Reitaro Hattori ◽  
Takashi Nagase ◽  
Miho Higashinakaya ◽  
Shion Tazuhara ◽  
...  

2021 ◽  
pp. 2002031
Author(s):  
Meihua Shou ◽  
Qinglei Zhang ◽  
Hao Li ◽  
Shicheng Xiong ◽  
Bangyao Hu ◽  
...  

2021 ◽  
pp. 1-1
Author(s):  
Zenan Lin ◽  
Qizhen Chen ◽  
Yujie Yan ◽  
Yaqian Liu ◽  
Enlong Li ◽  
...  

Micromachines ◽  
2020 ◽  
Vol 11 (12) ◽  
pp. 1061
Author(s):  
Taehoon Kim ◽  
Chulyeon Lee ◽  
Youngkyoo Kim

A new type of near-infrared (NIR)-sensing organic phototransistor (OPTR) was designed and fabricated by employing a channel/dielectric/sensing (CDS) triple layer structure. The CDS structures were prepared by inserting poly(methyl methacrylate) (PMMA) dielectric layers (DLs) between poly(3-hexylthiophene) (P3HT) channel layers and poly[{2,5-bis-(2-octyldodecyl)-3,6-bis-(thien-2-yl)-pyrrolo[3,4-c]pyrrole-1,4-diyl}-co-{2,2′-(2,1,3-benzothiadiazole)-5,5′-diyl}] (PODTPPD-BT) top sensing layers. Two different thicknesses of PMMA DLs (20 nm and 50 nm) were applied to understand the effect of DL thickness on the sensing performance of devices. Results showed that the NIR-OPTRs with the CDS structures were operated in a typical n-channel mode with a hole mobility of ca. 0.7~3.2 × 10−4 cm2/Vs in the dark and delivered gradually increased photocurrents upon illumination with an NIR light (905 nm). As the NIR light intensity increased, the threshold voltage was noticeably shifted, and the resulting transfer curves showed a saturation tendency in terms of curve shape. The operation of the NIR-OPTRs with the CDS structures was explained by the sensing mechanism that the excitons generated in the PODTPPD-BT top sensing layers could induce charges (holes) in the P3HT channel layers via the PMMA DLs. The optically modulated and reflected NIR light could be successfully detected by the present NIR-OPTRs with the CDS structures.


2020 ◽  
Vol 8 (20) ◽  
pp. 2000695
Author(s):  
Jin Hong Kim ◽  
Min‐Woo Choi ◽  
Su‐Yeon Kim ◽  
Seyoung Jung ◽  
Yeong Suk Choi ◽  
...  

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