Preparation and formation process of high efficient and stable CsPbBr3-Cs4PbBr6 nanocrystals with mixed phase

Chen Xue-Lian; Jiao Hu-Po; Shen Yan-Bing; Pan Xi-Qiang

doi:10.7498/aps.72.20230066

Abstract

CsPbBr₃-Cs₄PbBr₆ dual-phase nanocrystals are prepared by adding the mixture ligand of oleylamine and tetradecyl-phosphonic acid (OLA-TDPA) to CsPbBr₃ perovskite nanocrystals through ligand post-treatment. The structure, the morphology, optical property and the stability of CsPbBr₃-Cs₄PbBr₆ dual-phase nanocrystals are characterized by X-ray diffraction, transmission electron microscopy (high-resolution TEM), UV-vis spectrophotometer, fluorescence spectrophotometer, and transient fluorescence spectrophotometer. The as-obtained nanocrystals have a high photoluminescence quantum yield of 78% and long fluorescence lifetime of 476 ns when prepared at the optimal molar ratio of CsPbBr₃, TDPA and OLA (1∶1∶15). Moreover, the nanocrystal is quite stable at room temperature for at least 25 days, and has a good thermal stability in five heating-cooling cycles at temperature in a range between 293 K and 328 K. The formation of dual-phase nanocrystals go through two stages of surface passivation/dissolution and recrystallization to generate CsPbBr₃-Cs₄PbBr₆ nanocrystals. In the first stage (t ≤ 1 h), the m OLA-TDPA mixing ligand can form (RNH₃)₂PO₃ X type ligand and exchanges with [RNH₃]⁺-[RCOO]^– at the surface of CsPbBr₃ nanocrystals, which can effectively passivate surface defects by strong interaction with Pb²⁺ and high ligand content at surface, thus improving the quantum yield and fluorescence life of CsPbBr₃ nanocrystals with spherical shape. In the second stage, with the increase of reaction time, PbBr₂ partially dissolves from the surface of CsPbBr₃ nanocrystals, then some CsPbBr₃ nanocrystals transform into lead-depleted Cs₄PbBr₆ nanocrystals with hexagonal phase, thus improving the stability of nanocrystals. This work has a certain reference value for promoting the applications of high efficient and stable perovskite nanocrystals.

Keywords:

Authors and contacts

1.
School of Materials Science and Engineering, Xi’an Shiyou University, Xi’an 710065, China
2.
College of Chemistry and Chemical Engineering, Xi’an Shiyou University, Xi’an 710065, China

Corresponding author: Chen Xue-Lian, chenxl@xsyu.edu.cn ; Pan Xi-Qiang, pxq2336@163.com

Funds: Project supported by the National Natural Science Foundation of China (Grant No. 62104191) and the Postgraduate Innovation and Practical Ability Training Program of Xi’an Shiyou University, China (Grant No. YCS21112073).

[1]	Uddin M A, Mobley J K, Masud A A, Liu T, Calabro R L, Kim D Y, Richards C I, Graham K R 2019 J. Phys. Chem. C 123 18103 Google Scholar
[2]	Nedelcu G, Protesescu L, Yakunin S, Bodnarchuk M I, Grotevent M J, Kovalenko M V 2015 Nano Lett. 15 5635 Google Scholar
[3]	陈雪莲, 巨博, 焦琥珀, 李燕, 钟玉洁 2022 71 096802 Google Scholar Chen X L, Ju B, Jiao H P, Li Y, Zhong Y J 2022 Acta Phys. Sin. 71 096802 Google Scholar
[4]	Meyns M, Peralvarez M, Heuer-Jungemann A, Hertog W, Ibanez M, Nafria R, Genc A, Arbiol J, Kovalenko M V, Carreras J, Cabot A, Kanaras A G 2016 ACS Appl. Mater. Interfaces 8 19579 Google Scholar
[5]	Liu P Z, Chen W, Wang W G, Xu B, Wu D, Hao J J, Cao W Y, Fang F, Li Y, Zeng Y Y, Pan R K, Chen S M, Cao W Q, Sun X W, Wang K 2017 Chem. Mater. 29 5168 Google Scholar
[6]	Li S, Shi Z F, Zhang F, Wang L T, Ma Z Z, Yang D W, Yao Z Q, Wu D, Xu T T, Tian Y T, Zhang Y T, Shan C X, Li X J 2019 Chem. Mater. 31 3917 Google Scholar
[7]	Wang Y R, Zhang M, Xiao K, Lin R X, Luo X, Han Q L, Tan H R 2020 J. Semicond. 41 051201 Google Scholar
[8]	林月明, 巨博, 李燕, 陈雪莲 2021 70 128803 Google Scholar Lin M Y, Ju B, Li Y, Chen X L 2021 Acta Phys. Sin. 70 128803 Google Scholar
[9]	Li J Z, Dong H X, Xu B, Zhang S F, Cai Z P, Wang J, Zhang L 2017 Photonics Res. 5 457 Google Scholar
[10]	Sun S B, Yuan D, Xu Y, Wang A F, Deng Z T 2016 ACS Nano 10 3648 Google Scholar
[11]	De Roo J, De Keukeleere K, Hens Z, Van Driessche I 2016 Dalton Trans. 45 13277 Google Scholar
[12]	Xiao M, Hao M, Lyu M, Moore E G, Zhang C, Luo B, Hou J, Lipton-Duffin J, Wang L 2019 Adv. Funct. Mater. 29 1905683 Google Scholar
[13]	Han D B, Imran M, Zhang M J, Chang S, Wu X G, Zhang X, Tang J L, Wang M S, Ali S, Li X G, Yu G, Han J B, Wang L X, Zou B S, Zhong H Z 2018 ACS Nano 12 8808 Google Scholar
[14]	Krieg F, Ochsenbein S T, Yakunin S, Ten Brinck S, Aellen P, Suess A, Clerc B, Guggisberg D, Nazarenko O, Shynkarenko Y, Kumar S, Shih C J, Infante I, Kovalenko M V 2018 ACS Energy Lett. 3 641 Google Scholar
[15]	Pan J, Shang Y, Yin J, De Bastiani M, Peng W, Dursun I, Sinatra L, El-Zohry A M, Hedhili M N, Emwas A H, Mohammed O F, Ning Z, Bakr O M 2018 J. Am. Chem. Soc. 140 562 Google Scholar
[16]	Bi C H, Kershaw S V, Rogach A L, Tian J J 2019 Adv. Funct. Mater. 29 1902446 Google Scholar
[17]	Park S, Cho H, Choi W, Zou H, Jeon D Y 2019 Nanoscale Adv. 1 2828 Google Scholar
[18]	Li Z J, Hofman E, Li J, Davis A H, Tung C H, Wu L Z, Zheng W 2017 Adv. Funct. Mater. 28 1704288 Google Scholar
[19]	Qiao B, Song P J, Cao J, Zhao S L, Shen Z, Di G, Liang Z Q, Xu Z, Song D, Xu X R 2017 Nano Energy 28 445602 Google Scholar
[20]	Quan L N, Quintero-Bermudez R, Voznyy O, Walters G, Jain A, Fan J Z, Zheng X, Yang Z, Sargent E H 2017 Adv. Mater. 29 1605945 Google Scholar
[21]	Palazon F, Dogan S, Marras S, Locardi F, Nelli I, Rastogi P, Ferretti M, Prato M, Krahne R, Manna L 2017 J. Phys. Chem. C 121 11956 Google Scholar
[22]	Liang W C, Li T, Zhu C C, Guo L D 2022 Optik 267 169705 Google Scholar
[23]	Peng X G, Chen J, Wang F C, Zhang C Y, Yang B B 2020 Optik 208 164579 Google Scholar
[24]	Su Y, Zeng Q H, Chen X J, Ye W G, She L S, Gao X M, Ren Z Y, Li X M 2019 J. Mater. Chem. C 7 7548 Google Scholar
[25]	Akkerman Q A, Abdelhady A L, Manna L 2018 J. Phys. Chem. Lett. 9 2326 Google Scholar
[26]	Nie Z H, Gao X Z, Ren Y J, Xia S Y, Wang Y H, Shi Y L, Zhao J, Wang Y 2020 Nano Lett. 20 4610 Google Scholar
[27]	Natalia R, Mingrui Y, Paul G, Natalia K, Pavel M, Eckard H, Luis R R, Dmitry P, Dmitriy K, Zamkov M 2018 Chem. Mater. 30 1391 Google Scholar
[28]	Akkerman Q A, Park S, Radicchi E, Nunzi F, Mosconi E, De Angelis F, Brescia R, Rastogi P, Prato M, Manna L 2017 Nano Lett. 17 1924 Google Scholar
[29]	Li F, Liu Y, Wang H L, Zhan Q, Liu Q L, Xia Z G 2018 Chem. Mater. 30 8546 Google Scholar
[30]	Wang L, Liu H, Zhang Y, Mohammed O F 2020 ACS Energy Lett. 5 87 Google Scholar
[31]	Liang Z Q, Zhao S L, Xu Z, Qiao B, Song P J, Gao D, Xu X R 2016 ACS Appl. Mater. Interfaces 8 28824 Google Scholar
[32]	Vallés-Pelarda M, Gualdrón-Reyes A F, Felip-León C, Angulo-Pachón C A, Agouram S, Muñoz-Sanjosé V, Miravet J F, Galindo F, Mora-Seró I 2021 Adv. Opt. Mater. 9 2001786 Google Scholar
[33]	Xuan T T, Yang X F, Lou S Q, Huang J J, Liu Y, Yu J B, Li H L, Wong K L, Wang C X, Wang J 2017 Nanoscale 9 15286 Google Scholar
[34]	Zhang C, Lian L Y, Zhang J B, Su X M, Liu S S, Gao Y L, Lian Z Y, Sun D Z, Luo W, Zheng H M, Zhang D L 2022 J. Phys. Chem. C 126 4172 Google Scholar
[35]	De Roo J, Ibanez M, Geiregat P, Nedelcu G, Walravens W, Maes J, Martins J C, Van Driessche I, Kovalenko M V, Hens Z 2016 ACS Nano 10 2071 Google Scholar
[36]	Luschtinetz R, Seifert G, Jaehne E, Adler H J P 2007 Macromol. Symp. 254 248 Google Scholar
[37]	Son J G, Choi E, Piao Y, Han S W, Lee T G J N 2016 Nanoscale 8 4573 Google Scholar
[38]	Sun W, Yun R, Liu Y, Zhang X, Yuan M, Zhang L, Li X 2023 Small 19 2205950 Google Scholar
[39]	Wei Y, Cheng Z, Lin J 2019 Chem. Soc. Rev. 48 310 Google Scholar
[40]	Liu Z, Bekenstein Y, Orcid X Y, Nguyen S C, Orcid J S, Orcid D Z, Lee S T, Orcid P Y, Orcid W M, Alivisatos A P 2017 J. Am. Chem. Soc. 139 5309 Google Scholar

Cited By

图 1 CsPbBr₃ NCs和OLA-TDPA-PNCs的 X 射线衍射图

Figure 1. X-ray diffraction patterns of CsPbBr₃ NCs and OLA-TDPA-PNCs.

DownLoad: Full-Size Img PowerPoint

图 2 CsPbBr₃ NCs的TEM图像(a)及其对应的HRTEM图(b); OLA-TDPA-PNCs 的TEM图像(c)及其对应的HRTEM图(d)和(e)

Figure 2. TEM image of CsPbBr₃ NCs (a) and the corresponding HRTEM image (b); TEM image of OLA-TDPA-PNCs (c) and the corresponding HRTEM images (d) and (e).

DownLoad: Full-Size Img PowerPoint

图 3 (a) CsPbBr₃ NCs和OLA-TDPA-PNCs在日光照射(上)和365 nm紫外照射下(下)的实物照片; CsPbBr₃ NCs和OLA-TDPA-PNCs 的PL图谱(b)、UV-vis图谱(c)和时间衰减曲线(d)

Figure 3. (a) Photographs of CsPbBr₃ NCs and OLA-TDPA-PNCs under ambient light (top) and 365 nm UV irradiation (bottom); PL spectra (b), UV-vis absorption spectra (c), and time-resolved PL decay curves (d) of pristine CsPbBr₃ NCs and OLA-TDPA-PNCs in hexane.

DownLoad: Full-Size Img PowerPoint

图 4 (a)在紫外灯的连续照射下, CsPbBr₃ NCs和OLA-TDPA-PNCs的相对PL强度随光照时间的变化; (b)在常温密封条件下连续监测CsPbBr₃ NCs和OLA-TDPA-PNCs的相对PL强度, 持续时间长达26 d; (c) CsPbBr₃ NCs和OLA-TDPA-PNCs在298—328 K时的相对PL强度变化; (d) OLA-TDPA-PNCs在经历5次加热-冷却循环的相对PL强度变化

Figure 4. Variations of relative PL intensity of pristine CsPbBr₃ NCs and OLA-TDPA-PNCs under continuous UV 365 nm illumination (a); and stored under ambient conditions with sealing (b). Change of relative PL intensity of CsPbBr₃ NCs and OLA-TDPA-PNCs between 298 and 328 K (c); change of relative PL intensity of OLA-TDPA-PNCs recorded during 5 heating-cooling cycles between 298 and 328 K (d).

DownLoad: Full-Size Img PowerPoint

图 5 OLA, TDPA, OLA-TDPA , OLA-TDPA-PNCs, TDPA-PNCs和CsPbBr₃ NCs的FTIR光谱　(a) 800—1800 cm^–1; (b) 2000—3500 cm^–1

Figure 5. FTIR spectra of OLA, TDPA, OLA-TDPA , OLA-TDPA-PNCs, TDPA-PNCs and CsPbBr₃ NCs at 800–1800 cm^–1 (a) and (b) 2000–3500 cm^–1

DownLoad: Full-Size Img PowerPoint

图 6 OLA-TDPA-PNCs (上), TDPA-PNCs (中)和CsPbBr₃ NCs (下)的XPS光谱图全谱(a), 以及Cs 3d (b), Pb 4f (c), Br 3d (d), N 1s (e), P 2p (f)的XPS核级谱

Figure 6. Survey XPS spectra (a), XPS core level spectra of Cs 3d (b), Pb 4f (c), Br 3d (d), N 1s (e) and P 2p (f) of OLA-TDPA-PNCs (top), TDPA-PNCs (middle) and CsPbBr₃ NCs (bottom).

DownLoad: Full-Size Img PowerPoint

图 7 OLA-TDPA- PNCs随时间变化的光学监测　(a) UV-vis吸收光谱; (b)荧光光谱, 内插图为纳米晶在1—96 h间的荧光光谱图

Figure 7. Optical monitoring of the OLA-TDPA- PNCs over time: (a) UV-vis absorption spectra; (b) PL spectra, inset shows the PL spectra of OLA-TDPA- PNCs between 1 and 96 h.

DownLoad: Full-Size Img PowerPoint

表 1 CsPbBr₃ NCs和OLA-TDPA-PNCs的荧光寿命拟合

Table 1. Lifetime and fractional contribution of different decay channels for samples of CsPbBr₃ NCs and OLA-TDPA-PNCs.

Sample τ₁/ns τ₂/ns τ₃/ns K_nr/(10⁶ s^–1) K_r/(10⁶ s^–1) K_nr/K_r τ_avg/ns PLQY/%

CsPbBr₃ NCs 6.83 42.13 277.42 5.48 0.97 5.65 155 15
OLA-TDPA-PNCs 12.56 79.07 824.81 0.47 1.64 0.29 476 78

DownLoad: CSV

map

[1]	Uddin M A, Mobley J K, Masud A A, Liu T, Calabro R L, Kim D Y, Richards C I, Graham K R 2019 J. Phys. Chem. C 123 18103 Google Scholar
[2]	Nedelcu G, Protesescu L, Yakunin S, Bodnarchuk M I, Grotevent M J, Kovalenko M V 2015 Nano Lett. 15 5635 Google Scholar
[3]	陈雪莲, 巨博, 焦琥珀, 李燕, 钟玉洁 2022 71 096802 Google Scholar Chen X L, Ju B, Jiao H P, Li Y, Zhong Y J 2022 Acta Phys. Sin. 71 096802 Google Scholar
[4]	Meyns M, Peralvarez M, Heuer-Jungemann A, Hertog W, Ibanez M, Nafria R, Genc A, Arbiol J, Kovalenko M V, Carreras J, Cabot A, Kanaras A G 2016 ACS Appl. Mater. Interfaces 8 19579 Google Scholar
[5]	Liu P Z, Chen W, Wang W G, Xu B, Wu D, Hao J J, Cao W Y, Fang F, Li Y, Zeng Y Y, Pan R K, Chen S M, Cao W Q, Sun X W, Wang K 2017 Chem. Mater. 29 5168 Google Scholar
[6]	Li S, Shi Z F, Zhang F, Wang L T, Ma Z Z, Yang D W, Yao Z Q, Wu D, Xu T T, Tian Y T, Zhang Y T, Shan C X, Li X J 2019 Chem. Mater. 31 3917 Google Scholar
[7]	Wang Y R, Zhang M, Xiao K, Lin R X, Luo X, Han Q L, Tan H R 2020 J. Semicond. 41 051201 Google Scholar
[8]	林月明, 巨博, 李燕, 陈雪莲 2021 70 128803 Google Scholar Lin M Y, Ju B, Li Y, Chen X L 2021 Acta Phys. Sin. 70 128803 Google Scholar
[9]	Li J Z, Dong H X, Xu B, Zhang S F, Cai Z P, Wang J, Zhang L 2017 Photonics Res. 5 457 Google Scholar
[10]	Sun S B, Yuan D, Xu Y, Wang A F, Deng Z T 2016 ACS Nano 10 3648 Google Scholar
[11]	De Roo J, De Keukeleere K, Hens Z, Van Driessche I 2016 Dalton Trans. 45 13277 Google Scholar
[12]	Xiao M, Hao M, Lyu M, Moore E G, Zhang C, Luo B, Hou J, Lipton-Duffin J, Wang L 2019 Adv. Funct. Mater. 29 1905683 Google Scholar
[13]	Han D B, Imran M, Zhang M J, Chang S, Wu X G, Zhang X, Tang J L, Wang M S, Ali S, Li X G, Yu G, Han J B, Wang L X, Zou B S, Zhong H Z 2018 ACS Nano 12 8808 Google Scholar
[14]	Krieg F, Ochsenbein S T, Yakunin S, Ten Brinck S, Aellen P, Suess A, Clerc B, Guggisberg D, Nazarenko O, Shynkarenko Y, Kumar S, Shih C J, Infante I, Kovalenko M V 2018 ACS Energy Lett. 3 641 Google Scholar
[15]	Pan J, Shang Y, Yin J, De Bastiani M, Peng W, Dursun I, Sinatra L, El-Zohry A M, Hedhili M N, Emwas A H, Mohammed O F, Ning Z, Bakr O M 2018 J. Am. Chem. Soc. 140 562 Google Scholar
[16]	Bi C H, Kershaw S V, Rogach A L, Tian J J 2019 Adv. Funct. Mater. 29 1902446 Google Scholar
[17]	Park S, Cho H, Choi W, Zou H, Jeon D Y 2019 Nanoscale Adv. 1 2828 Google Scholar
[18]	Li Z J, Hofman E, Li J, Davis A H, Tung C H, Wu L Z, Zheng W 2017 Adv. Funct. Mater. 28 1704288 Google Scholar
[19]	Qiao B, Song P J, Cao J, Zhao S L, Shen Z, Di G, Liang Z Q, Xu Z, Song D, Xu X R 2017 Nano Energy 28 445602 Google Scholar
[20]	Quan L N, Quintero-Bermudez R, Voznyy O, Walters G, Jain A, Fan J Z, Zheng X, Yang Z, Sargent E H 2017 Adv. Mater. 29 1605945 Google Scholar
[21]	Palazon F, Dogan S, Marras S, Locardi F, Nelli I, Rastogi P, Ferretti M, Prato M, Krahne R, Manna L 2017 J. Phys. Chem. C 121 11956 Google Scholar
[22]	Liang W C, Li T, Zhu C C, Guo L D 2022 Optik 267 169705 Google Scholar
[23]	Peng X G, Chen J, Wang F C, Zhang C Y, Yang B B 2020 Optik 208 164579 Google Scholar
[24]	Su Y, Zeng Q H, Chen X J, Ye W G, She L S, Gao X M, Ren Z Y, Li X M 2019 J. Mater. Chem. C 7 7548 Google Scholar
[25]	Akkerman Q A, Abdelhady A L, Manna L 2018 J. Phys. Chem. Lett. 9 2326 Google Scholar
[26]	Nie Z H, Gao X Z, Ren Y J, Xia S Y, Wang Y H, Shi Y L, Zhao J, Wang Y 2020 Nano Lett. 20 4610 Google Scholar
[27]	Natalia R, Mingrui Y, Paul G, Natalia K, Pavel M, Eckard H, Luis R R, Dmitry P, Dmitriy K, Zamkov M 2018 Chem. Mater. 30 1391 Google Scholar
[28]	Akkerman Q A, Park S, Radicchi E, Nunzi F, Mosconi E, De Angelis F, Brescia R, Rastogi P, Prato M, Manna L 2017 Nano Lett. 17 1924 Google Scholar
[29]	Li F, Liu Y, Wang H L, Zhan Q, Liu Q L, Xia Z G 2018 Chem. Mater. 30 8546 Google Scholar
[30]	Wang L, Liu H, Zhang Y, Mohammed O F 2020 ACS Energy Lett. 5 87 Google Scholar
[31]	Liang Z Q, Zhao S L, Xu Z, Qiao B, Song P J, Gao D, Xu X R 2016 ACS Appl. Mater. Interfaces 8 28824 Google Scholar
[32]	Vallés-Pelarda M, Gualdrón-Reyes A F, Felip-León C, Angulo-Pachón C A, Agouram S, Muñoz-Sanjosé V, Miravet J F, Galindo F, Mora-Seró I 2021 Adv. Opt. Mater. 9 2001786 Google Scholar
[33]	Xuan T T, Yang X F, Lou S Q, Huang J J, Liu Y, Yu J B, Li H L, Wong K L, Wang C X, Wang J 2017 Nanoscale 9 15286 Google Scholar
[34]	Zhang C, Lian L Y, Zhang J B, Su X M, Liu S S, Gao Y L, Lian Z Y, Sun D Z, Luo W, Zheng H M, Zhang D L 2022 J. Phys. Chem. C 126 4172 Google Scholar
[35]	De Roo J, Ibanez M, Geiregat P, Nedelcu G, Walravens W, Maes J, Martins J C, Van Driessche I, Kovalenko M V, Hens Z 2016 ACS Nano 10 2071 Google Scholar
[36]	Luschtinetz R, Seifert G, Jaehne E, Adler H J P 2007 Macromol. Symp. 254 248 Google Scholar
[37]	Son J G, Choi E, Piao Y, Han S W, Lee T G J N 2016 Nanoscale 8 4573 Google Scholar
[38]	Sun W, Yun R, Liu Y, Zhang X, Yuan M, Zhang L, Li X 2023 Small 19 2205950 Google Scholar
[39]	Wei Y, Cheng Z, Lin J 2019 Chem. Soc. Rev. 48 310 Google Scholar
[40]	Liu Z, Bekenstein Y, Orcid X Y, Nguyen S C, Orcid J S, Orcid D Z, Lee S T, Orcid P Y, Orcid W M, Alivisatos A P 2017 J. Am. Chem. Soc. 139 5309 Google Scholar

[1]	Sun Tang-You, Yu Yan-Li, Qin Zu-Bin, Chen Zan-Hui, Chen Jun-Li, Jiang Yue, Zhang Fa-Bi. Multi-band response Cs₂AgBiBr₆ double perovskite photodetector based on TiO₂ nanopillars. Acta Physica Sinica, 2024, 73(7): 078502. doi: 10.7498/aps.73.20231919
[2]	Zhang Xi-Sheng, Yan Chun-Yu, Hu Li-Na, Wang Jing-Zhou, Yao Chen-Zhong. Perovskite solar cells prepared by processing CsPbBr₃ nanocrystalline films in low temperature solution. Acta Physica Sinica, 2024, 73(22): 228101. doi: 10.7498/aps.73.20241152
[3]	Chen Xue-Lian, Shen Yan-Bing, Yuan Zhi-Cong, Li Kai-Rui, Pan Xi-Qiang. Facile synthesis of phase-adjustable CsPbBr₃-Cs₄PbBr₆ composite nanocrystals and in-situ study of phase transformation process. Acta Physica Sinica, 2024, 73(9): 096801. doi: 10.7498/aps.73.20240247
[4]	Meng Jing, Gao Bo-Wen. Photovoltaic performance of novel Perovskite/organic integrated solar cells with high efficiency and high stability. Acta Physica Sinica, 2023, 72(1): 018802. doi: 10.7498/aps.72.20221120
[5]	Ma Shu-Peng, Lin Fei-Yu, Luo Yuan, Zhu Liu, Guo Xue-Yi, Yang Ying. Formation mechanism of CsPbBr₃ in multi-step spin-coating process. Acta Physica Sinica, 2022, 71(15): 158101. doi: 10.7498/aps.71.20220171
[6]	Sun Xue, Huang Feng, Liu Gui-Xiong, Su Zi-Sheng. Effect of nano-nucleation sites assisted crystallization on performance of perovskite photodetector. Acta Physica Sinica, 2022, 71(17): 178102. doi: 10.7498/aps.71.20220189
[7]	Zhao Song, Zhou Hua, Wang Shu-Ying, Han Fei, Jiang Si-Han, Shen Xiang-Qian. Design of high efficiency perovskite/silicon tandem solar cells based on plasmonic enhancement of metal nanosphere. Acta Physica Sinica, 2022, 71(3): 038801. doi: 10.7498/aps.71.20211585
[8]	Chen Xue-Lian, Ju Bo, Jiao Hu-Po, Li Yan, Zhong Yu-Jie. Preparation of CsPbBr₃ perovskite nanocrystals with controllable morphology and in-situ photoluminescence of formation kinetics. Acta Physica Sinica, 2022, 71(9): 096802. doi: 10.7498/aps.71.20212228
[9]	Li Bin, Miao Xiang-Yang. Photoluminescence blinking properties of single CsPbBr₃ perovskite quantum dots. Acta Physica Sinica, 2021, 70(20): 207802. doi: 10.7498/aps.70.20210908
[10]	Xu Qing-Lin, Xiang Ting, Xu Wei, Li Ting, Wu Xiao-Yan, Li Wei, Qiu Xue-Jun, Chen Ping. Gold nanoparticals modified indium tin oxide anode for high performance red perovskite light emitting diodes. Acta Physica Sinica, 2021, 70(20): 207803. doi: 10.7498/aps.70.20210500
[11]	. Design of high efficiency perovskite/silicon tandem solar cells based on the plasmonic enhancement of metal nanosphere. Acta Physica Sinica, 2021, (): . doi: 10.7498/aps.70.20211585
[12]	Wu Hai-Yan, Tang Jian-Xin, Li Yan-Qing. Efficient and stable blue perovskite light emitting diodes based on defect passivation. Acta Physica Sinica, 2020, 69(13): 138502. doi: 10.7498/aps.69.20200566
[13]	Liu Xiao-Bing, Guo Ruo-Tong, Zhong Yu-Xuan, Zhao Li-Xin, Shi Hao-Nan, Liu Li-Juan. Ligand with strong electronegativity induced blue emitting of CsPbBr₃ nanocrystals. Acta Physica Sinica, 2020, 69(15): 158102. doi: 10.7498/aps.69.20200261
[14]	Fan Qin-Hua, Zu Yan-Qing, Li Lu, Dai Jin-Fei, Wu Zhao-Xin. Research progress of stability of luminous lead halide perovskite nanocrystals. Acta Physica Sinica, 2020, 69(11): 118501. doi: 10.7498/aps.69.20191767
[15]	Qu Zi-Han, Chu Ze-Ma, Zhang Xing-Wang, You Jing-Bi. Research progress of efficient green perovskite light emitting diodes. Acta Physica Sinica, 2019, 68(15): 158504. doi: 10.7498/aps.68.20190647
[16]	Wu Bu-Jun, Lin Dong-Xu, Li Zheng, Cheng Zhen-Ping, Li Xin, Chen Ke, Shi Ting-Ting, Xie Wei-Guang, Liu Peng-Yi. Optimization of grain size to achieve high-performance perovskite solar cells in vapor deposition. Acta Physica Sinica, 2019, 68(7): 078801. doi: 10.7498/aps.68.20182221
[17]	Liu Na, Wei Yang, Ma Xin-Guo, Zhu Lin, Xu Guo-Wang, Chu Liang, Huang Chu-Yun. Theoretical study on the stability and photoelectric properties of APbI3 perovskite. Acta Physica Sinica, 2017, 66(5): 057103. doi: 10.7498/aps.66.057103
[18]	Wang Dong, Zhu Hui-Min, Zhou Zhong-Min, WangZai-Wei, Lü Si-Liu, Pang Shu-Ping, CuiGuang-Lei. Effect of solvent on the perovskite thin film morphology and crystallinity. Acta Physica Sinica, 2015, 64(3): 038403. doi: 10.7498/aps.64.038403
[19]	Yang Xu-Dong, Chen Han, Bi En-Bing, Han Li-Yuan. Key issues in highly efficient perovskite solar cells. Acta Physica Sinica, 2015, 64(3): 038404. doi: 10.7498/aps.64.038404
[20]	Liu Yan-Yan, Liu Fa-Min, Shi Xia, Ding Peng, Zhou Chuan-Cang. Preparation, structure and ferromagnetic properties of perovskite BaFeO3 nanocrystals. Acta Physica Sinica, 2008, 57(11): 7274-7278. doi: 10.7498/aps.57.7274

097801-20230066补充材料.pdf

Catalog

Vol. 72, Issue 9 - 2023-05-05

Metrics

Abstract views: 4576
PDF Downloads: 118
Cited By: 0

姓名
邮箱
手机号码
标题
留言内容
验证码

Search

Article

留言板

Preparation and formation process of high efficient and stable CsPbBr₃-Cs₄PbBr₆ nanocrystals with mixed phase

Abstract

Authors and contacts

Corresponding author: Chen Xue-Lian, chenxl@xsyu.edu.cn ; Pan Xi-Qiang, pxq2336@163.com

FullText HTML : translate this paragraph

Supplements

References

Cited By

Catalog

Metrics

Authors

Referees

About Journal

About

Sample	τ₁/ns	τ₂/ns	τ₃/ns	K_nr/(10⁶ s^–1)	K_r/(10⁶ s^–1)	K_nr/K_r	τ_avg/ns	PLQY/%
CsPbBr₃ NCs	6.83	42.13	277.42	5.48	0.97	5.65	155	15
OLA-TDPA-PNCs	12.56	79.07	824.81	0.47	1.64	0.29	476	78

Search

Article

留言板