Performance characteristics of polymer photovoltaic solar cells with an additive-incorporated active layer

Abstract

We have investigated the performance characteristics of bulk-heterojunction polymer solar cells based on poly(3-hexylthiophene-2,5-diyl) and [6,6]-phenyl C61 butyric acid methyl ester by adding 1,8-octanedithiol as a processing agent in an active layer. The effects of the additive, 1,8-octanedithiol, on the device performance parameter characteristics have been discussed. The current density-voltage measurements, UV-Vis absorption spectra, X-ray diffraction spectra, and scanning probe microscope images have been used to discuss the performance characteristics of polymer solar cells.

Benzothiadiazole-based polymer for single and double junction solar cells with high open circuit voltage

“…This behavior is similar to the case of poly(3-hexylthiophene) (P3HT), where the structural order of P3HT was disrupted when higher PCBM ratios were used. [38][39][40] Hence increasing the PCBM blending ratio leads to breaking of polymer chain packing, resulting in turn in a higher amorphous phase of polymer. This is further supported by in-plane XRD measurements in Fig.…”

Tuning Aggregation of Poly(3-hexylthiophene) within Nanoparticles

“…There have been several studies correlating the relative intensities of vibronic features in the absorption spectra of P3HT thin films with P3HT aggregate structure. ,,,,− In the H / J aggregate model developed by Spano, information on both dominant coupling types, H -type (face-to-face), or J -type (end-to-end), and coupling magnitude (exciton bandwidth, W ) is encoded in the intensity ratio of the origin (0–0) and first vibronic satellite (0–1) transitions by the relation where W is the exciton bandwidth ( W = 4 | J 0 |, where J 0 is the exciton coupling matrix element); and ω 0 is the vibrational energy of the symmetric vinyl stretch (taken here to be 0.178 eV). The dominant coupling type can be readily identified from measurement of the 0–0 and 0–1 absorption strengths, ,,,, where the primary conditions for validity are that (1) only nearest-neighbors coupling is considered and (2) only one aggregate type ( H or J ) contributes to the electronic absorption.…”

Design and Modification of Copper Oxide Electrodes for Improving Conversion Coefficient Indoors Lights (PV-Cell) Photocells

“…Since Hammond, AL publish, "Photovoltaic cells: direct conversion of solar energy", the study of photovoltaic cells developed with various aspects. [2] The first aspect of the reactor contents photovoltaic covering organic PV [4; 5], PV inorganic/polymer [6; 7] and Dyesensitized Solar Cell [8][9][10]. Dye-sensitized Solar Cell [DSSC] is made with the dye molecules, nanocrystalline metal oxides and organic electrolyte liquid [11].…”