VISUALISASI PROFIL RAPAT EKSITON DALAM SEL SURYA ORGANIK HETEROJUNCTION

• Main Authors: , Trias Prima Satya, , Dr. Eng. Kuwat Triyana, M.Si.
• Format: Theses and Dissertations NonPeerReviewed
• Published: [Yogyakarta] : Universitas Gadjah Mada 2013
• Subjects: ETD
• Online Access: https://repository.ugm.ac.id/119573/; http://etd.ugm.ac.id/index.php?mod=penelitian_detail&sub=PenelitianDetail&act=view&typ=html&buku_id=59576
• Institution: Universitas Gadjah Mada

The visualization of exciton density profile in the heterojunction organic solar cell device based on phthalocyanine (CuPc) and perylene (PTCBI) has been made based on the exciton diffusion equation. For this purpose, the finite difference numerical method was applied for time independent exciton density, while the Crank Nicolson method was applied for time dependent exciton density. This study is the improvement of the previous visualization because of involving the process of dissociation at the donor-acceptor interface, interference effects within the device, and the finite structure of a thin films device.The wavelength effect of incident light to the exciton density profile were observed at the wavelength that correlated to the peak and valley of absorbance spectrum coefficient of CuPc and PTCBI. The result shows that after involving the three parameters above, the exciton density profiles is more spread and higher than that of without involving the parameters. Moreover, the time dependent of exciton density profile shows the peak that is lower than that of independent one. Furthermore, it is found that the photocurrent density is contributed significantly by the PTCBI layer rather than CuPc layer at the wavelength of 535 nm. The highest incident photon to current efficiency for the independent time exciton density and dependent time exciton density were given by 58,54 % and 23,47 %, respectively.