Asset Details
Do you wish to reserve the book?
Flexible power generators by Ag2Se thin films with record-high thermoelectric performance
Hey, we have placed the reservation for you!
By the way, why not check out events that you can attend while you pick your title.
Oops! Something went wrong.
Looks like we were not able to place the reservation. Kindly try again later.
Are you sure you want to remove the book from the shelf?
Flexible power generators by Ag2Se thin films with record-high thermoelectric performance
Do you wish to request the book?
Flexible power generators by Ag2Se thin films with record-high thermoelectric performance
Please be aware that the book you have requested cannot be checked out. If you would like to checkout this book, you can reserve another copy
We have requested the book for you!
Your request is successful and it will be processed during the Library working hours. Please check the status of your request in My Requests.
Oops! Something went wrong.
Looks like we were not able to place your request. Kindly try again later.
Journal Article
Flexible power generators by Ag2Se thin films with record-high thermoelectric performance
2024
Overview
Exploring new near-room-temperature thermoelectric materials is significant for replacing current high-cost Bi
2
Te
3
. This study highlights the potential of Ag
2
Se for wearable thermoelectric electronics, addressing the trade-off between performance and flexibility. A record-high
ZT
of 1.27 at 363 K is achieved in Ag
2
Se-based thin films with 3.2 at.% Te doping on Se sites, realized by a new concept of doping-induced orientation engineering. We reveal that Te-doping enhances film uniformity and (00
l
)-orientation and in turn carrier mobility by reducing the (00
l
) formation energy, confirmed by solid computational and experimental evidence. The doping simultaneously widens the bandgap, resulting in improved Seebeck coefficients and high power factors, and introduces Te
Se
point defects to effectively reduce the lattice thermal conductivity. A protective organic-polymer-based composite layer enhances film flexibility, and a rationally designed flexible thermoelectric device achieves an output power density of 1.5 mW cm
−2
for wearable power generation under a 20 K temperature difference.
Flexible Ag
2
Se possesses promising near-room-temperature thermoelectric performance, while trade-off in thermoelectric performance and flexibility enhances its practical utility. Here, the authors fabricate polycrystalline Ag
2
Se-based thin film with a high ZT of 1.27 at 363 K by Te doping.
