Title :
Design of Highly Transparent Organic Photodiodes
Author :
Zaus, Edgar S. ; Tedde, Sandro ; Rauch, Tobias ; Fürst, Jens ; Döhler, Gottfried H.
Author_Institution :
Siemens AG, Erlangen
Abstract :
In this brief, various approaches for the realization of transparent photodiodes based on bulk heterojunction blends of poly-3-hexylthiophene and [6,6]-phenyl C61-butyric acid methyl ester are studied. The choice of the constituents of the device is discussed concerning transmittance and light-detecting properties as dark current and external quantum efficiency (EQE). Blending several light-absorbing materials makes tailoring of the transmittance spectrum possible. Transmittance of 36% of the incident light together with 46% EQE at a wavelength of 530 nm are promising results and show the potential for highly transparent photodiodes based on organic layers.
Keywords :
light absorption; optical properties; organic semiconductors; photodiodes; EQE; bulk heterojunction blends; dark current; external quantum efficiency; light-absorbing materials; light-detecting properties; transmittance spectrum; transparent organic photodiodes; wavelength 530 nm; Dark current; Electrodes; Electrons; Excitons; Heterojunctions; Indium tin oxide; Organic light emitting diodes; Photodetectors; Photodiodes; Semiconductor materials; Bulk heterojunction; [6,6]-phenyl $hbox{C}_{61}$-butyric acid methyl ester (PCBM); indium tin oxide (ITO); poly-3-hexylthiophene (P3HT); transparent photodiode;
Journal_Title :
Electron Devices, IEEE Transactions on
DOI :
10.1109/TED.2007.911628
