Citation: Bing Xia, Qiang Miao, Jie Chao, Shou Jun Xiao, Hai Tao Wang, Zhong Dang Xiao. Charge transfer on porous silicon membranes studied by current-sensing atomic force microscopy[J]. Chinese Chemical Letters, ;2008, 19(2): 199-202. doi: 10.1016/j.cclet.2007.12.003 shu

Charge transfer on porous silicon membranes studied by current-sensing atomic force microscopy

a State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China;
b State Key Laboratory of Molecular and Biomolecular Electronics, Southeast University, Nanjing 210096, China

Received Date: 10 July 2007

Fund Project: The authors thank the financial support of NNSFC (No. 20571042) and of the National Basic Research Program of China (No. 2007CB925101).

A visible rectification effect on the current-voltage curves of metal/porous silicon/p-silicon has been observed by currentsensing atomic force microscopy.The current-voltage curves of porous silicon membranes with different porosities, prepared through variation of etching current density for a constant time, indicate that a higher porosity results in a higher resistance and thus a lower rectification, until the current reaches a threshold at a porosity > 55%.We propose that the conductance mode in the porous silicon membrane with porosities > 55% is mainly a hopping mechanism between nano-crystallites and an inverse static electric field between the porous silicon and p-Si interface blocks the electron injection from porous silicon to p-Si, but with porosities ≤ 55%, electron flows through a direct continuous channel between nano-crystallites.
- Porous silicon,
- Current sensing AFM,
- Electron transfer,
- Porosity
1. [1]
  Chunxiu Yu , Zelin Wu , Hongle Shi , Lingyun Gu , Kexin Chen , Chuan-Shu He , Yang Liu , Heng Zhang , Peng Zhou , Zhaokun Xiong , Bo Lai . Insights into the electron transfer mechanisms of peroxydisulfate activation by modified metal-free acetylene black for degradation of sulfisoxazole. Chinese Chemical Letters, 2024, 35(8): 109334-. doi: 10.1016/j.cclet.2023.109334
2. [2]
  Zuyou Song , Yong Jiang , Qiao Gou , Yini Mao , Yimin Jiang , Wei Shen , Ming Li , Rongxing He . Promoting the generation of active sites through "Co-O-Ru" electron transport bridges for efficient water splitting. Chinese Chemical Letters, 2025, 36(4): 109793-. doi: 10.1016/j.cclet.2024.109793
3. [3]
  Supphachok Chanmungkalakul , Syed Ali Abbas Abedi , Federico J. Hernández , Jianwei Xu , Xiaogang Liu . The dark side of cyclooctatetraene (COT): Photophysics in the singlet states of “self-healing” dyes. Chinese Chemical Letters, 2024, 35(8): 109227-. doi: 10.1016/j.cclet.2023.109227
4. [4]
  Cunjun Li , Wencong Liu , Xianlei Chen , Liang Li , Shenyu Lan , Mingshan Zhu . Adsorption and activation of peroxymonosulfate on BiOCl for carbamazepine degradation: The role of piezoelectric effect. Chinese Chemical Letters, 2024, 35(10): 109652-. doi: 10.1016/j.cclet.2024.109652
5. [5]
  Peng Zhou , Ziang Jiang , Yang Li , Peng Xiao , Feixiang Wu . Sulphur-template method for facile manufacturing porous silicon electrodes with enhanced electrochemical performance. Chinese Chemical Letters, 2024, 35(8): 109467-. doi: 10.1016/j.cclet.2023.109467
6. [6]
  Zeyu XU , Tongzhou LU , Haibo SHAO , Jianming WANG . Preparation and electrochemical lithium storage performance of porous silicon microsphere composite with metal modification and carbon coating. Chinese Journal of Inorganic Chemistry, 2024, 40(10): 1995-2008. doi: 10.11862/CJIC.20240164
7. [7]
  Yang LIU , Lijun WANG , Hongyu WANG , Zhidong CHEN , Lin SUN . Surface and interface modification of porous silicon anodes in lithium-ion batteries by the introduction of heterogeneous atoms and hybrid encapsulation. Chinese Journal of Inorganic Chemistry, 2025, 41(4): 773-785. doi: 10.11862/CJIC.20250015
8. [8]
  Yiqian Jiang , Zihan Yang , Xiuru Bi , Nan Yao , Peiqing Zhao , Xu Meng . Mediated electron transfer process in α-MnO₂ catalyzed Fenton-like reaction for oxytetracycline degradation. Chinese Chemical Letters, 2024, 35(8): 109331-. doi: 10.1016/j.cclet.2023.109331
9. [9]
  Ya Song , Mingxia Zhou , Zhu Chen , Huali Nie , Jiao-Jing Shao , Guangmin Zhou . Integrated interconnected porous and lamellar structures realized fast ion/electron conductivity in high-performance lithium-sulfur batteries. Chinese Chemical Letters, 2024, 35(6): 109200-. doi: 10.1016/j.cclet.2023.109200
10. [10]
  Xiaxia Xing , Xiaoyu Chen , Zhenxu Li , Xinhua Zhao , Yingying Tian , Xiaoyan Lang , Dachi Yang . Polyethylene imine functionalized porous carbon framework for selective nitrogen dioxide sensing with smartphone communication. Chinese Chemical Letters, 2024, 35(9): 109230-. doi: 10.1016/j.cclet.2023.109230
11. [11]
  Yi Liu , Zhe-Hao Wang , Guan-Hua Xue , Lin Chen , Li-Hua Yuan , Yi-Wen Li , Da-Gang Yu , Jian-Heng Ye . Photocatalytic dicarboxylation of strained C–C bonds with CO₂ via consecutive visible-light-induced electron transfer. Chinese Chemical Letters, 2024, 35(6): 109138-. doi: 10.1016/j.cclet.2023.109138
12. [12]
  Yun-Xin Huang , Lin-Qian Yu , Ke-Yu Chen , Hao Wang , Shou-Yan Zhao , Bao-Cheng Huang , Ren-Cun Jin . Biochar with self-doped N to activate peroxymonosulfate for bisphenol-A degradation via electron transfer mechanism: The active edge graphitic N site. Chinese Chemical Letters, 2024, 35(9): 109437-. doi: 10.1016/j.cclet.2023.109437
13. [13]
  Quanyou Guo , Yue Yang , Tingting Hu , Hongqi Chu , Lijun Liao , Xuepeng Wang , Zhenzi Li , Liping Guo , Wei Zhou . Regulating local electron transfer environment of covalent triazine frameworks through F, N co-modification towards optimized oxygen reduction reaction. Chinese Chemical Letters, 2025, 36(1): 110235-. doi: 10.1016/j.cclet.2024.110235
14. [14]
  Yan Fan , Jiao Tan , Cuijuan Zou , Xuliang Hu , Xing Feng , Xin-Long Ni . Unprecedented stepwise electron transfer and photocatalysis in supramolecular assembly derived hybrid single-layer two-dimensional nanosheets in water. Chinese Chemical Letters, 2025, 36(4): 110101-. doi: 10.1016/j.cclet.2024.110101
15. [15]
  Tao Long , Peng Chen , Bin Feng , Caili Yang , Kairong Wang , Yulei Wang , Can Chen , Yaping Wang , Ruotong Li , Meng Wu , Minhuan Lan , Wei Kong Pang , Jian-Fang Wu , Yuan-Li Ding . Reinforced concrete-like Na_3.5V_1.5Mn_0.5(PO₄)₃@graphene hybrids with hierarchical porosity as durable and high-rate sodium-ion battery cathode. Chinese Chemical Letters, 2024, 35(4): 109267-. doi: 10.1016/j.cclet.2023.109267
16. [16]
  Xiuzheng Deng , Yi Ke , Jiawen Ding , Yingtang Zhou , Hui Huang , Qian Liang , Zhenhui Kang . Construction of ZnO@CDs@Co₃O₄ sandwich heterostructure with multi-interfacial electron-transfer toward enhanced photocatalytic CO₂ reduction. Chinese Chemical Letters, 2024, 35(4): 109064-. doi: 10.1016/j.cclet.2023.109064
17. [17]
  Qinghong Zhang , Qiao Zhao , Xiaodi Wu , Li Wang , Kairui Shen , Yuchen Hua , Cheng Gao , Yu Zhang , Mei Peng , Kai Zhao . Visible-light-induced ring-opening cross-coupling of cycloalcohols with vinylazaarenes and enones via β-C-C scission enabled by proton-coupled electron transfer. Chinese Chemical Letters, 2025, 36(2): 110167-. doi: 10.1016/j.cclet.2024.110167
18. [18]
  Ying Hou , Zhen Liu , Xiaoyan Liu , Zhiwei Sun , Zenan Wang , Hong Liu , Weijia Zhou . Laser constructed vacancy-rich TiO_2-x/Ti microfiber via enhanced interfacial charge transfer for operando extraction-SERS sensing. Chinese Chemical Letters, 2024, 35(9): 109634-. doi: 10.1016/j.cclet.2024.109634
19. [19]
  Xin Jiang , Han Jiang , Yimin Tang , Huizhu Zhang , Libin Yang , Xiuwen Wang , Bing Zhao . g-C₃N₄/TiO_2-X heterojunction with high-efficiency carrier separation and multiple charge transfer paths for ultrasensitive SERS sensing. Chinese Chemical Letters, 2024, 35(10): 109415-. doi: 10.1016/j.cclet.2023.109415
20. [20]
  Yang Deng , Yitao Ouyang , Chao Han . Constriction-susceptible makes fast cycling of lithium metal in solid-state batteries: Silicon as an example. Chinese Journal of Structural Chemistry, 2024, 43(7): 100276-100276. doi: 10.1016/j.cjsc.2024.100276

Get Citation

PDF

XML

Metrics

PDF Downloads(0)
Abstract views(628)
HTML views(46)

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Address：Zhongguancun North First Street 2,100190 Beijing, PR China Tel: +86-010-82449177-888

DownLoad: Full-Size Img PowerPoint

Return