水热制备荧光碳量子点及其在敏化太阳电池中的应用

李佳保; 张婷婷; 杨启鸣; 杨雯; 李学铭; 杨培志

doi:doi:10.37188/cjl.20200148

发光学报, 2020, 41 (10): 1255, 网络出版: 2020-11-25

水热制备荧光碳量子点及其在敏化太阳电池中的应用

Hydrothermal Synthesis of Fluorescent Carbon Quantum Dots and Their Application in Sensitized Solar Cells

论文大纲

李佳保 ^*张婷婷杨启鸣杨雯李学铭杨培志

作者单位

云南师范大学可再生能源材料先进技术与制备教育部重点实验室, 云南昆明 650500

纳米材料碳量子点敏化太阳电池光电转换效率 pH值 nanomaterials carbon quantum dots sensitized solar cells photoelectric conversion efficiency pH value

摘要

作为碳纳米材料家族的一员, 碳量子点(CQDs)以其独特的光电特性、环境友好、制备成本低等优点成为近年来的研究热点, 并在太阳电池、光电催化、传感器等光伏与光电领域展现出广阔的应用潜力。本文以壳聚糖为原料, 采用水热法在酸性、中性、碱性(pH=3,7,10)环境下制备了荧光碳量子点, 并对其光致发光性质和结构进行了表征。TEM测试表明, 随着pH值从3增大到10, 其粒径由2.80 nm减小到1.83 nm。将获得的碳量子点作为光敏化剂, 组装成敏化太阳电池(SSCs), 结果表明pH=3时制备出的CQDs组装的太阳电池具有最高的光电转换效率(PCE)。为了进一步提升SSCs的性能, 将CQDs与N719染料复合, 制备了共敏化太阳电池(co-SSCs)。由于CQDs的上转换特性和良好的载流子传输性能,CQDs/N719基co-SSCs的PCE较CQDs及N719染料单独敏化太阳电池显著提高, 最高PCE达9.13%。这些研究结果为制备碳量子点及组装高效敏化太阳电池提供了新思路。

Abstract

Carbon quantum dots(CQDs), a member of carbon nanomaterials family, have catching growing attentions in recent years due to their distinctive photoelectric properties, environmental-friendliness and cost-effectiveness. Moreover, it shows huge potential in photovoltaic and optoelectronic applications, such as solar cells, photoelectric catalysis, sensors and so on. In herein, the CQDs were synthesized by hydrothermal method with chitosan as precursor under acid, neutral and alkaline environment(pH=3, 7, 10). At the same time, the photoluminescence properties and structures of the obtained CQDs were characterized. The TEM characterization showed that with the increase of pH value from 3 to 10, the particle size decreased from 2.80 nm to 1.83 nm. These CQDs were also used as photosensitizer to assemble into sensitized solar cells(SSCs). Resultantly, the solar cells with the CQDs obtained under pH=3 exhibited the highest photoelectric conversion efficiency(PCE). In order to further improve the performance of SSCs, N719 dye was applied to prepare co-sensitized solar cells(co-SSCs) by combing with the CQDs. Owing to up-conversion characteristics and excellent carrier transport properties of CQDs, a PCE as high as 9.13% was achieved for CQDs/N719 based co-SSCs, which is significantly higher than that of CQDs- and N719-based SSCs individually. These research results open a new door for fabricating CQDs and assembling high efficient SSCs.

参考文献

[1] CHESTNOY N,HULL R,BRUS L E. Higher excited electronic states in clusters of ZnSe,CdSe,and ZnS: spin-orbit,vibronic,and relaxation phenomena ［J］. J. Chem. Phys., 1986,85(4):2237-2242.

[2] WANG G S,WEI H Y,SHI J J,et al.. Significantly enhanced energy conversion efficiency of CuInS2 quantum dot sensitized solar cells by controlling surface defects ［J］. Nano Energy, 2017,35:17-25.

[3] CHUNG H,CHO K S,KOH W K,et al.. Composition-dependent trap distributions in CdSe and InP quantum dots probed using photoluminescence blinking dynamics ［J］. Nanoscale, 2016,8(29):14109-14116.

[4] DU J,DU Z L,HU J S,et al.. Zn-Cu-In-Se quantum dot solar cells with a certified power conversion efficiency of 11.6% ［J］. J. Am. Chem. Soc., 2016,138(12):4201-4209.

[5] 杨英,潘德群,张政,等. Ag2Se量子点共敏化固态染料敏化太阳能电池光电性能研究［J］. 无机材料学报, 2019,34(2):137-144.

YANG Y,PAN D Q,ZHANG Z,et al.. Photovoltaic performance of Ag2Se quantum dots co-sensitized solid-state dye-sensitized solar cells ［J］. J. Inorg. Mater., 2019,34(2):137-144. (in Chinese)

[6] WU R F,YANG Y H,LI M Z,et al.. Solvent engineering for high-performance PbS quantum dots solar cells ［J］. Nanomaterials, 2017,7(8):201.

[7] LI X M,RUI M C,SONG J Z,et al.. Carbon and graphene quantum dots for optoelectronic and energy devices:a review ［J］. Adv. Funct. Mater., 2015,25(31):4929-4947.

[8] LEE D U,KIM D H,CHOI D H,et al.. Microstructural and optical properties of CdSe/CdS/ZnS core-shell-shell quantum dots ［J］. Opt. Express, 2016,24(2):A350-A357.

[9] ZENKEVICH E,STUPAK A,GHLER C,et al.. Tuning electronic states of a CdSe/ZnS quantum dot by only one functional dye molecule ［J］. ACS Nano, 2015,9(3):2886-2903.

[10] YANG F,ZHAO M L,ZHENG B Z,et al.. Influence of pH on the fluorescence properties of graphene quantum dots using ozonation pre-oxide hydrothermal synthesis ［J］. J. Mater. Chem., 2012,22(48):25471-25479.

[11] LIU H P,YE T,MAO C D. Fluorescent carbon nanoparticles derived from candle soot ［J］. Angew. Chem. Int. Ed., 2007,46(34):6473-6475.

[12] ZHANG C F,CUI Y Y,SONG L,et al.. Microwave assisted one-pot synthesis of graphene quantum dots as highly sensitive fluorescent probes for detection of iron ions and pH value ［J］. Talanta, 2016,150:54-60.

[13] WANG L,ZHU S J,WANG H Y,et al.. Common origin of green luminescence in carbon nanodots and graphene quantum dots ［J］. ACS Nano, 2014,8(3):2541-2547.

[14] YANG Q M,DUAN J L,YANG W,et al.. Nitrogen-doped carbon quantum dots from biomass via simple one-pot method and exploration of their application ［J］. Appl. Surf. Sci., 2018,434:1079-1085.

[15] TANG Q W,ZHU W L,HE B L,et al.. Rapid conversion from carbohydrates to large-scale carbon quantum dots for all-weather solar cells ［J］. ACS Nano, 2017,11(2):1540-1547.

[16] BAKER S N,BAKER G A. Luminescent carbon nanodots:Emergent nanolights ［J］. Angew. Chem. Int. Ed., 2010,49(38):6726-6744.

[17] ZHANG Y Q,MA D K,ZHANG Y G,et al.. N-doped carbon quantum dots for TiO2-based photocatalysts and dye-sensitized solar cells ［J］. Nano Energy, 2013,2(5):545-552.

[18] 杨启鸣. 氮掺杂碳量子点的制备及其在染料敏化太阳电池中的应用研究［D］. 昆明:云南师范大学, 2018:26-27.

YANG Q M. Research on The Preparation of N-CQDs and Their Applications in Dye-sensitized Solar Cells ［D］. Kunming:Yunnan Normal University, 2018:26-27. (in Chinese)

[19] TANG Q W,DUAN Y Y,HE B L,et al.. Platinum alloy tailored all-weather solar cells for energy harvesting from sun and rain ［J］. Angew. Chem. Int. Ed., 2016,55(46):14412-14416.

[20] RINAUDO M. Chitin and chitosan:properties and applications ［J］. Prog. Polym. Sci., 2006,31(7):603-632.

[21] PAN D Y,ZHANG J C,LI Z,et al.. Hydrothermal route for cutting graphene sheets into blue-luminescent graphene quantum dots ［J］. Adv. Mater., 2010,22(6):734-738.

[22] LUO Z T,LU Y,SOMERS L A,et al.. High yield preparation of macroscopic graphene oxide membranes ［J］. J. Am. Chem. Soc., 2009,131(3):898-899.

[23] YAN X,CUI X,LI B S,et al.. Large,solution-processable graphene quantum dots as light absorbers for photovoltaics ［J］. Nano Lett., 2010,10(5):1869-1873.

[24] SUBRAMANIAN A,PAN Z H,RONG G L,et al.. Graphene quantum dot antennas for high efficiency Frster resonance energy transfer based dye-sensitized solar cells ［J］. J. Power Sources, 2017,343:39-46.

[25] LI Y,HU Y,ZHAO Y,et al.. An electrochemical avenue to green-luminescent graphene quantum dots as potential electron-acceptors for photovoltaics ［J］. Adv. Mater, 2011,23(6):776-780.

[26] ROELOFS K E,HERRON S M,BENT S F. Increased quantum dot loading by pH control reduces interfacial recombination in quantum-dot-sensitized solar cells ［J］. ACS Nano, 2015,9(8):8321-8334.

[27] BUHBUT S,ITZHAKOV S,ORON D,et al.. Quantum dot antennas for photoelectrochemical solar cells ［J］. J. Phys. Chem. Lett., 2011,2(15):1917-1924.

[28] TIAN Q H,DENG D,ZHANG Z,et al.. Facile synthesis of Ag2Se quantum dots and their application in dye/Ag2Se co-sensitized solar cells ［J］. J. Mater. Sci., 2017,52(20):12131-12140.

[29] MENG K,SUROLIA P K,BYRNE O,et al.. Quantum dot and quantum dot-dye co-sensitized solar cells containing organic thiolate-disulfide redox electrolyte ［J］. J. Power Sources, 2015,275:681-687.

[30] PAN D Y,ZHANG J C,LI Z,et al.. Observation of pH-,solvent-,spin-,and excitation-dependent blue photoluminescence from carbonnanoparticles ［J］. Chem. Commun., 2010,46(21):3681-3683.

[31] TANG L B,JI R B,CAO X K,et al.. Deep ultraviolet photoluminescence of water-soluble self-passivated graphene quantum dots ［J］. ACS Nano, 2012,6(6):5102-5110.

[32] YANG J X,TANG Q W,MENG Q,et al.. Photoelectric conversion beyond sunny days:all-weather carbon quantum dot solar cells ［J］. J. Mater. Chem. A, 2017,5(5):2143-2150.

李佳保, 张婷婷, 杨启鸣, 杨雯, 李学铭, 杨培志. 水热制备荧光碳量子点及其在敏化太阳电池中的应用[J]. 发光学报, 2020, 41(10): 1255. LI Jia-bao, ZHANG Ting-ting, YANG Qi-ming, YANG Wen, LI Xue-ming, YANG Pei-zhi. Hydrothermal Synthesis of Fluorescent Carbon Quantum Dots and Their Application in Sensitized Solar Cells[J]. Chinese Journal of Luminescence, 2020, 41(10): 1255.

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