Development of nitrogen-decorated carbon dots (NCDs) thermally conductive film for windows application

다국어 초록 (Multilingual Abstract)

A thermally conductive film can be used to laterally conduct heat along the surface of glass windows, toward its edges where a heat sink could be located, thereby reducing temperature differential between the inside and outside surfaces of the window and thus lowering cross-sectional conductive heat transfer. This technique can offer optimized thermal energy management to modern buildings without the weight and cost of double- or triple-glazed window panels. In this work, a thermally conductive film was developed using carbon dots with inherently high thermal conductivity. Nitrogen atoms were then added to the carbon dots structure to intensify high-frequency phonon that would result in higher lateral thermal conductivity. The nitrogen-decorated carbon dots (NCDs) were prepared by a simple hydrothermal synthesis of citric acid with the addition of ethylenediamine as the N source. The NCDs were added to a cellulose-based solution and drop-casted onto FTO glass resulting in a transparent, laterally thermally conductive film, that also blocks ultraviolet (UV) and high-intensity blue light radiation. The visible-light transmission of the NCDs’ film was found to be up to 65%, comparable to the commercial solar films. The lateral thermal conductivity of the NCDs’ film increases with increasing N content up to an optimum level, suggesting the role of N to “concentrate’ the high-frequency phonons responsible for effective lateral thermal conductivity of the films.

참고문헌 (Reference)

1 Mirsaeidi AM, "Viscosity, thermal conductivity and density of carbon quantum dots nanofluids : an experimental investigation and development of new correlation function and ANN modeling" 143 : 351-361, 2021

2 Seol JH, "Two-dimensional phonon transport in supported graphene" 328 : 213-, 2010

3 Song N-J, "Thermally reduced graphene oxide films as flexible lateral heat spreaders" 2 : 16563-16568, 2014

4 Yang B, "Thermal properties of triangle nitrogen-doped graphene nanoribbons" 383 : 1306-1311, 2019

5 Pop E, "Thermal conductance of an individual single-wall carbon nanotube above room temperature" 6 : 96-100, 2006

6 Swartz ET, "Thermal boundary resistance" 61 : 605-668, 1989

7 Gamal El-Shamy A, "The role of nitrogen-carbon dots(NC)nano-particles in enhancing thermoelectric power functions of PEDOT : PSS/Te nano-composite films" 417 : 129212-, 2021

8 Suriani AB, "Synthesis, transfer and application of graphene as a transparent conductive film : a review" 43 : 310-, 2020

9 Zhang C, "Synthesis of nitrogen-doped graphene using embedded carbon and nitrogen sources" 23 : 1020-1024, 2011

10 Miao X, "Synthesis of carbon dots with multiple color emission by controlled graphitization and surface functionalization" 30 : 1704740-, 2018

11 Wang S, "Supervisory and optimal control of building HVAC systems : a review" 14 : 3-32, 2008

12 Balandin AA, "Superior thermal conductivity of single-layer graphene" 8 : 902-907, 2008

13 Jelle BP, "Solar radiation glazing factors for window panes, glass structures and electrochromic windows in buildings—measurement and calculation" 116 : 291-323, 2013

14 Yuan F, "Shining carbon dots : Synthesis and biomedical and optoelectronic applications" 11 : 565-586, 2016

15 Wang H, "Review on recent progress in nitrogen-doped graphene : synthesis, characterization, and its potential applications" 2 : 781-794, 2012

16 Xu D, "Recent advances and sensing applications of carbon dots" 4 : 1900387-, 2020

17 Frank BP, "Photochemical transformations of carbon dots in aqueous environments" 54 : 4160-4170, 2020

18 Jaćimovski SK, "Phonon thermal conductivity of graphene" 88 : 330-337, 2015

19 Nika DL, "Phonon thermal conduction in graphene : role of Umklapp and edge roughness scattering" 79 : 155413-, 2009

20 Sadineni SB, "Passive building energy savings : a review of building envelope components" 15 : 3617-3631, 2011

21 Goei R, "Novel Nd–Mo co-doped SnO2/α-WO3electrochromic materials(ECs)for enhanced smart window performance" 47 : 9-, 2021

22 Inagaki M, "Nitrogendoped carbon materials" 132 : 104-140, 2018

23 Goei R, "Nd–Nb Co-doped SnO2/α-WO3 electrochromic materials : enhanced stability and switching properties" 6 (6): 26251-, 2021

24 Kumar P, "Large-area reduced graphene oxide thin film with excellent thermal conductivity and electromagnetic interference shielding effectiveness" 94 : 494-500, 2015

25 Vrachopoulos MG, "Investigation of heat transfer in a triple-glazing type window at Greek climate conditions, Central European" 3 : 750-763, 2013

26 Chen D, "Intense multi-state visible absorption and full-color luminescence of nitrogen-doped carbon quantum dots for blue-light-excitable solid-state-lighting" 4 : 9027-9035, 2016

27 Ürge-Vorsatz D, "Heating and cooling energy trends and drivers in buildings" 41 : 85-98, 2015

28 Sarkar S, "Graphitic nitrogen doping in carbon dots causes red-shifted absorption" 120 : 1303-1308, 2016

29 Nguyen TD, "Fabrication and characterization of graphene quantum dots thin film for reducing cross-sectional heat transfer through smart window" 127 : 110861-, 2020

30 Kumar S, "Energy-saving potential of a passive cooling system for thermal energy management of a residential building in Jaipur City, India" 43 : 1471-1477, 2021

31 Cheng S, "Electrostatically assembled carbon dots/boron nitride nanosheet hybrid nanostructures for thermal quenchingresistant white phosphors" 12 : 524-529, 2020

32 Lin Y-C, "Controllable graphene N-doping with ammonia plasma" 96 : 133110-, 2010

33 Perera DW, "Comparison of space heating energy consumption of residential buildings based on traditional and model-based techniques" 2017

34 Wang L, "Common origin of green luminescence in carbon nanodots and graphene quantum dots" 8 : 2541-2547, 2014

35 Wang B, "Carbon dots as a new class of nanomedicines : opportunities and challenges" 442 : 214010-, 2021

36 Liu J, "Carbon dots : a new type of carbonbased nanomaterial with wide applications" 6 : 2179-2195, 2020

37 Su W, "Carbon dots : a booming material for biomedical applications" 4 : 821-836, 2020

38 Barman BK, "Carbon dot/cellulose-based transparent films for efficient UV and high-energy blue light screening" 9 : 9879-9890, 2021

39 Long C, "Applications of carbon dots in environmental pollution control : a review" 406 : 126848-, 2021

40 Liu Y, "Advances in carbon dots : from the perspective of traditional quantum dots" 4 : 1586-1613, 2020

41 Pérez-Lombard L, "A review on buildings energy consumption information" 40 : 394-398, 2008

42 Mariano-Hernández D, "A review of strategies for building energy management system : model predictive control, demand side management, optimization, and fault detect & diagnosis" 33 : 101692-, 2021

43 Mintz KJ, "A deep investigation into the structure of carbon dots" 173 : 433-447, 2021