@article{18878,
  abstract     = {Thermoelectric (TE) materials, with the ability to convert heat into electrical energy, can generate micro-electrical fields at electronic interfaces with biological systems, making them applicable in electric-catalyzing as nanozymes, and modulate the infected microenvironment of skin wounds. Thereby, by harnessing temperature differences in vitro or in vivo, TE nanomaterials can provide antimicrobial reactive oxygen species (ROS) by catalyzing redox reactions, thereby accelerating wound healing by suppressing infection. However, despite their promising potential, there is still a lack of comprehensive understanding of the antimicrobial mechanisms, biocompatibility, and practical applications of TE nanomaterials in wound healing, as this is a newly-emerged sub-area of energy-related biomedical applications. This review aims to address this gap by highlighting the emerging progress of TE materials in wound healing, clarifying their mechanism and advances, emphasizing their potential challenges for commercialization and clinical use, and proposing novel design strategies of TE nanomaterials for effective antibacterial performance.},
  author       = {Jia, Shiyu and Qi, Cai and Xu, Shengduo and Yang, Lei and Sun, Qiang},
  issn         = {1005-0302},
  journal      = {Journal of Materials Science and Technology},
  number       = {08},
  pages        = {212--226},
  publisher    = {Elsevier},
  title        = {{Advancements of thermoelectric nanomaterials in ROS-mediated broad-spectrum antibacterial therapies for wound healing}},
  doi          = {10.1016/j.jmst.2024.11.039},
  volume       = {225},
  year         = {2025},
}

@article{19075,
  abstract     = {Thermoelectric (TE) materials can convert the heat produced during biochemical reactions into electrical signals, enabling the self-powered detection of biomarkers. In this work, we design and fabricate a simple Ag2Se nanofilm-based TE biosensor to precisely quantify hydrogen peroxide (H2O2) levels in liquid samples. A chemical reaction involving horseradish peroxidase, ABTS and H2O2 in the specimens produces a photothermal agent—ABTS (2,2′-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid)) free radical, which triggers the heat fluctuations at the TE sensor through the photo-thermal effect, eventually enabling the sensing of H2O2. Consequently, the constructed sensor can achieve a detection limit of 0.26 μM by a three-leg TE device design. Further investigations suggest that the application of our TE sensor can be extended in testing H2O2 in beverages (including milk, soda water, and lemonade) and evaluating the load of bacterial pathogens relevant to dental diseases and infections including Streptococcus sanguinis and Methicillin-resistant Staphylococcus aureus with high analytical accuracy. This strategy utilizes the combination of high thermoelectric performance with chemical reactions to realize a straightforward and accurate biomarker detection method, making it suitable for applications in medical diagnostics, personalized health monitoring, and the food industry.},
  author       = {Ma, Huangshui and Pu, Shiyu and Jia, Shiyu and Xu, Shengduo and Yu, Qiwei and Yang, Lei and Wu, Hao and Sun, Qiang},
  issn         = {2040-3372},
  journal      = {Nanoscale},
  number       = {10},
  pages        = {5858--5868},
  publisher    = {Royal Society of Chemistry},
  title        = {{Laser-assisted thermoelectric-enhanced hydrogen peroxide biosensors based on Ag2Se nanofilms for sensitive detection of bacterial pathogens}},
  doi          = {10.1039/d4nr04860a},
  volume       = {17},
  year         = {2025},
}

@article{19364,
  abstract     = {Thermoelectric coolers (TECs) are pivotal in modern heat management but face limitations in efficiency and manufacturing scalability. We address these challenges by using an extrusion-based 3D printing technique to fabricate high-performance thermoelectric materials. Our ink formulations ensure the integrity of the 3D-printed structure and effective particle bonding during sintering, achieving record-high figure of merit (zT) values of 1.42 for p-type bismuth antimony telluride [(Bi,Sb)2Te3] and 1.3 for n-type silver selenide (Ag2Se) materials at room temperature. The resulting TEC demonstrates a cooling temperature gradient of 50°C in air. Moreover, this scalable and cost-effective method circumvents energy-intensive and time-consuming steps, such as ingot preparation and subsequently machining processes, offering a transformative solution for thermoelectric device production and heralding a new era of efficient and sustainable thermoelectric technologies.},
  author       = {Xu, Shengduo and Horta, Sharona and Lawal, Abayomi Q and Maji, Krishnendu and Lorion, Magali and Ibáñez, Maria},
  issn         = {1095-9203},
  journal      = {Science},
  number       = {6736},
  pages        = {845--850},
  publisher    = {AAAS},
  title        = {{Interfacial bonding enhances thermoelectric cooling in 3D-printed materials}},
  doi          = {10.1126/science.ads0426},
  volume       = {387},
  year         = {2025},
}

@article{17896,
  abstract     = {Broadband photodetectors that can decipher the wavelength (λ) and intensity (I) of an unknown incident light are urgently demanded. Photothermoelectric (PTE) detectors can achieve ultrabroadband photodetection surpassing the bandgap limitation; however, their practical application is severely hampered by the lack of deciphering strategy. In this work, we report a variable elimination method to decipher λ and I of the incident lights based on an integrated Ag2Se film-based PTE detector. Nanostructured Ag2Se films with controlled thickness are synthesized using an ion sputtering of Ag and a room-temperature selenization method and then assembled into a detector. Under identical illumination, Ag2Se films of different thicknesses produce varying output photothermal voltages, influenced by factors including λ. By establishing a direct relationship between the photothermal voltage and the absorption of Ag2Se films of varied thickness, we successfully eliminate variables independent of λ, thus determining λ. Subsequently, I is determined by the calibrated responsivity relationship using obtained λ. Our PTE detector achieves a broadband spectrum from 400 to 950 nm and high accuracy, with deviations as low as ∼2.63 and ∼0.53% for deciphered λ and I, respectively. This method allows for self-powered broadband decipherable photodetection without a complex device architecture or computational assistance, which could boost the research enthusiasm and promote the commercialization of PTE broadband detectors.},
  author       = {Zhou, Jiamin and Xu, Shengduo and Shuai, Yi and Sun, Qiang and Ma, Huangshui and Wang, Chao and Wu, Haijuan and Tan, Shanshan and Wang, Zegao and Yang, Lei},
  issn         = {1944-8252},
  journal      = {ACS Applied Materials and Interfaces},
  number       = {36},
  pages        = {47923--47930},
  publisher    = {American Chemical Society},
  title        = {{Decipher the wavelength and intensity using photothermoelectric detectors}},
  doi          = {10.1021/acsami.4c10489},
  volume       = {16},
  year         = {2024},
}

@inproceedings{18965,
  abstract     = {A thermoelectric cooler is a solid-state device that transfers heat from one side to another when an electrical current passes through it. This technology is appealing because it can provide precise and localized cooling and heating without using hazardous liquids or gases commonly found in traditional vapor compression refrigeration. These devices are compact, customizable in size, work in any orientation, operate noiselessly, and require minimal maintenance. Even though thermoelectric coolers could be transformative for many advanced thermal management applications, their widespread adoption is hindered by the low efficiency of the thermoelectric materials and costly manufacturing processes.
 In this work, we use extrusion-based 3D printing techniques to fabricate high-performance thermoelectric materials using nanomaterial-based ink. The ink formulation is optimized to ensure structural integrity and particle interfacial bonding during annealing, providing p- and n-type materials with record-high zT values of 1.46 and 1.35 at room temperature, respectively. Moreover, we integrate the printed materials into a 32-pair device and achieve a significant cooling temperature gradient of 50 °C and a coefficient of performance of 3.8, comparable to best-performing thermoelectric coolers, avoiding material waste, and the energy-intense and inefficient steps, such as high-temperature synthesis, pressure-assisted sintering, and cutting and dicing ingots, commonly used in conventional manufacturing processes.},
  author       = {Ibáñez, Maria and Xu, Shengduo and Horta, Sharona and Lawal, Abayomi Q},
  booktitle    = {Proceedings of the Materials for Sustainable Development Conference},
  location     = {Lausanne, Switzerland},
  publisher    = {Fundació de la comunitat valenciana SCITO},
  title        = {{High-performance thermoelectric cooler fabricated vith extrusion-based 3D printing materials}},
  doi          = {10.29363/nanoge.matsusfall.2024.222},
  year         = {2024},
}

@article{12113,
  abstract     = {The power factor of poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) film can be significantly improved by optimizing the oxidation level of the film in oxidation and reduction processes. However, precise control over the oxidation and reduction effects in PEDOT:PSS remains a challenge, which greatly sacrifices both S and σ. Here, we propose a two-step post-treatment using a mixture of ethylene glycol (EG) and Arginine (Arg) and sulfuric acid (H2SO4) in sequence to engineer high-performance PEDOT:PSS thermoelectric films. The high-polarity EG dopant removes the excess non-ionized PSS and induces benzenoid-to-quinoid conformational change in the PEDOT:PSS films. In particular, basic amino acid Arg tunes the oxidation level of PEDOT:PSS and prevents the films from over-oxidation during H2SO4 post-treatment, leading to increased S. The following H2SO4 post-treatment further induces highly orientated lamellar stacking microstructures to increase σ, yielding a maximum power factor of 170.6 μW m−1 K−2 at 460 K. Moreover, a novel trigonal-shape thermoelectric device is designed and assembled by the as-prepared PEDOT:PSS films in order to harvest heat via a vertical temperature gradient. An output power density of 33 μW cm−2 is generated at a temperature difference of 40 K, showing the potential application for low-grade wearable electronic devices.},
  author       = {Zhang, Li and Liu, Xingyu and Wu, Ting and Xu, Shengduo and Suo, Guoquan and Ye, Xiaohui and Hou, Xiaojiang and Yang, Yanling and Liu, Qingfeng and Wang, Hongqiang},
  issn         = {0169-4332},
  journal      = {Applied Surface Science},
  keywords     = {Surfaces, Coatings and Films, Condensed Matter Physics, Surfaces and Interfaces, General Physics and Astronomy, General Chemistry},
  publisher    = {Elsevier},
  title        = {{Two-step post-treatment to deliver high performance thermoelectric device with vertical temperature gradient}},
  doi          = {10.1016/j.apsusc.2022.156101},
  volume       = {613},
  year         = {2023},
}