Effect of ZnSe nanoparticles in the PEDOT: PSS photodiodes
Abstract
In this article we report the photovoltaic properties of devices made using a highly conducting polymer electrode, from poly(3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT: PSS) incorporated with ZnSe nanoparticles on ITO substrate as an anode and a Poly(3-hexylthiophene-2,5-diyl) (P3HT) mixed with Phenyl-C61-butyric acid methyl ester (PC61BM) in the ratio of 1:1 as the active layer. The device performance was compared with that of devices made with PEDOT-PSS without ZnSe nanoparticles on ITO substrates. The IV characteristics were studied and the surfaces of PEDOT:PSS with ZnSe were imaged using Transmission electron microscopy (TEM).
It shows that the functions of the photodiode devices increase with the addition of ZnSe nanoparticles. The improvement is linked to two physical effects: the increased scattering efficiency of the fine ZnSe nanoparticles and ………….
Keywords: PEDOT:PSS; light scattering; hybrid organic-inorganic composite; hybrid photodiodes, ZnSe.
Introduction
Improving the efficiency of photo detectors are always a popular research issue due to its impending applications in various fields like visible light communication, chemical analysis, water purification, flame detection, cameras, camcorders and plasma displays [1,2]. Addition of nano particles like GaN, SiC, ZnO, TiO2, CdSe and ZnSe has shown considerable increase in the efficiency of photo detectors [3-9]. Among these several kinds of semiconductor nanocrystals, CdS, and CdSe nanocrystals are the most extensively studied ones. Whereas researches on ZnSe nanocrystals are comparatively limited. ZnSe is considered as an n-type semiconductor material with wider band gap of ~2.7 eV at room temperature and transmittance range (0.5–22 µm). It demonstrates tunable blue-ultraviolet (UV) luminescence. This UV range is virtually inaccessible for cadmium-based systems such as CdSe, other than this the toxicity of cadmium represents an additional disadvantage. Thus ZnSe is more appropriate for the fabrication of short-wavelength photodiodes than other semiconductor materials.
Last Completed Projects
| topic title | academic level | Writer | delivered |
|---|
Are you looking for a similar paper or any other quality academic essay? Then look no further. Our research paper writing service is what you require. Our team of experienced writers is on standby to deliver to you an original paper as per your specified instructions with zero plagiarism guaranteed. This is the perfect way you can prepare your own unique academic paper and score the grades you deserve.
Use the order calculator below and get started! Contact our live support team for any assistance or inquiry.
[order_calculator]