Photoelectric and Thermoelectric Dual Modulation Via a Ternary Composite.

Sam‐Shajing Sun,Harold Odell Lee

doi:10.1002/gch2.201800077

Abstract

Materials for simultaneous photoelectric and thermo‐electric dual conversions and modulations, where photon can modulate the thermoelectric conversion, and temperature can modulate the photoelectric conversion, may find potential applications where light (including a laser) can remotely turn on, turn off, or modulate a thermoelectric generator, a cooler, or a temperature sensor, and vice versa, temperature (heating/cooling) can turn on, turn off, or modulate a photoelectric device such as a photo detector or a solar cell. Here, it is demonstrated that such simultaneous dual conversion or modulation can be achieved via a ternary composite, e.g., a poly‐3‐hexyl‐thiophene thin‐film doped with both phenyl‐C61‐butyric acid methyl ester and iodine. This finding may result in the development of lightweight, flexible shape, cost‐effective, renewable, environmentally friendly, biocompatible, and scalable materials, devices, and systems for clean energy harvestings (such as solar and waste heat dual energy harvesting) as well as light/heat dual‐sensing sensors, modulators, and controllers.

Highlights

Materials for simultaneous photoelectric and thermo-electric dual converpolymer poly-3-hexyl-thiophene (P3HT) as the main charge carrier collection and sions and modulations, where photon can modulate the thermoelectric transport media, phenyl-C61-butyric acid conversion, and temperature can modulate the photoelectric conversion, may find potential applications where light can remotely turn on, turn off, or modulate a thermoelectric generator, a cooler, or a temperature sensor, and vice versa, temperature can turn methyl ester (PCBM) as the photoelectric dopant, and iodine as the thermoelectric dopant
It is demonstrated that such simultaneous dual conversion orbital (LUMO)) levels of the three comor modulation can be achieved via a ternary composite, e.g., a poly-3-hexylthiophene thin-film doped with both phenyl-C61-butyric acid methyl ester and iodine
When the iodine/P3HT/PCBM ternary composite is excited with an energy matched photon, an electron at P3HT HOMO shall be scalable materials, devices, and systems for clean energy harvestings as well as light/heat dualsensing sensors, modulators, and controllers

Summary

Photoelectric and Thermoelectric Dual Modulation Via a Ternary Composite

Materials for simultaneous photoelectric and thermo-electric dual converpolymer poly-3-hexyl-thiophene (P3HT) as the main charge carrier collection and sions and modulations, where photon can modulate the thermoelectric transport media, phenyl-C61-butyric acid conversion, and temperature can modulate the photoelectric conversion, may find potential applications where light (including a laser) can remotely turn on, turn off, or modulate a thermoelectric generator, a cooler, or a temperature sensor, and vice versa, temperature (heating/cooling) can turn methyl ester (PCBM) as the photoelectric dopant, and iodine as the thermoelectric dopant. It is demonstrated that such simultaneous dual conversion orbital (LUMO)) levels of the three comor modulation can be achieved via a ternary composite, e.g., a poly-3-hexylthiophene thin-film doped with both phenyl-C61-butyric acid methyl ester and iodine. This finding may result in the development of lightweight, flexible shape, cost-effective, renewable, environmentally friendly, biocompatible, and ponents and the work functions of ITO and the aluminum electrodes. Carrier density n is directly related to the photoelectric or thermoelectric doping induced positive polarons on P3HT, and that the carrier mobility μ is generally and directly correlated to materials solid state packing or film morphology. The conductivity increase from 2.47 × 10−5 S cm−1

Conductivity Under Various Conditions

Findings

Conflict of Interest