Berlin 2018 – scientific programme

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HL: Fachverband Halbleiterphysik

HL 21: Photo-voltaics II

HL 21.2: Talk

Tuesday, March 13, 2018, 14:15–14:30, EW 202

The application of Direct Laser Interference Pattern (DLIP) on antimony sulfide hybrid solar cell — •wei wang, shaista andleeb, eugen zimmermann, thomas möller, johannes boneberg, and lukas schmidt mende — Department of Physics ,University of Konstanz

Antimony sulfide (Sb2S3) is a promising candidate for hybrid thin film solar cells due to its various favorable properties, such as suitable optical band gap (1.75 eV), high dielectric constant and good band alignment in combination with many organic hole transport materials. In our study, thin layer amorphous Sb2S3 were first spin-coated on the substrates. Then the Sb2S3 film were patterned by direct laser interference. Thin film hybrid solar cells were made by using annealed Sb2S3 film as absorber and P3HT as hole transporter. The photovoltaics performances of the solar cells fabricated from laser patterned Sb2S3 film were superior to the unpatterned ones. Light intensity-dependent current-voltage measurements, transient photocurrent and photovoltage decay measurements, external quantum efficiency measurement as well as total absorption measurement were utilized to characterize the underlying physical mechanisms and measure the photovoltaic device performance.