研究目的
Investigating the electrocatalytic performance of nitrogen-doped porous carbon nanoribbons (NPCNs) as counter electrodes in quantum dot-sensitized solar cells (QDSCs).
研究成果
NPCNs exhibit excellent electrocatalytic performance for polysulfide electrolyte regeneration in QDSCs, attributed to their nitrogen doping, porous nanoribbon structure, and large surface area. A power conversion efficiency of 3.27% was achieved, comparable to that of PbS counter electrodes, suggesting NPCNs as a promising alternative for QDSCs.
研究不足
The study focuses on the electrocatalytic performance of NPCN electrodes in QDSCs but does not explore their long-term stability under operational conditions or scalability for industrial applications.
1：Experimental Design and Method Selection:
NPCNs were fabricated from PPy nanotubes via carbonization and activation processes. NPCN counter electrodes were fabricated by depositing NPCNs onto Ti mesh.
2：Sample Selection and Data Sources:
PPy nanotubes were obtained according to previously reported procedures.
3：List of Experimental Equipment and Materials:
Equipment included a Bruker Advanced D8 diffractometer, HR800 Raman spectrometer, JEM-2010 model TEM, S-4800 model SEM, ASAP 2020 physisorption analyzer, XPS, SOLARTRON 1255/1287 electrochemical system, CHI660D electrochemical system, and a solar simulator. Materials included PPy nanotubes, KOH, Ti mesh, and polysulfide electrolyte.
4：Experimental Procedures and Operational Workflow:
NPCNs were prepared by carbonization of PPy nanotubes followed by chemical activation. NPCN paste was deposited onto Ti mesh to fabricate counter electrodes. QDSCs were assembled with NPCN counter electrodes and characterized.
5：Data Analysis Methods:
Electrochemical performance was evaluated through EIS, CV, and Tafel polarization measurements. Photovoltaic performance was measured under AM1.5 simulated solar irradiation.
独家科研数据包，助您复现前沿成果，加速创新突破
获取完整内容-
Bruker Advanced D8 diffractometer
Advanced D8
Bruker
Analyzing the structure of as-prepared samples
-
Keithley 2400 source meter
2400
Keithley
Recording current density-voltage curve measurements
-
HR800 Raman spectrometer
HR800
Analyzing the structure of as-prepared samples using a 532 nm laser
-
JEM-2010 model transmission electron microscopy
JEM-2010
Characterizing the morphology of carbon samples
-
S-4800 model scanning electron microscopy
S-4800
Characterizing the morphology of carbon samples
-
ASAP 2020 physisorption analyzer
ASAP 2020
Performing N2 adsorption-desorption measurements at ?196°C
-
X-ray photoelectron spectrometer
ESCALAB 220i-XL
Analyzing the chemical composition of carbon samples
-
SOLARTRON 1255/1287 electrochemical system
1255/1287
SOLARTRON
Performing electrochemical impedance spectroscopy measurements
-
CHI660D electrochemical system
CHI660D
Carrying out cyclic voltammetry and Tafel polarization tests
-
solar simulator
Used as the illumination source with an AM1.5 filter and 150 W xenon lamp
-
登录查看剩余8件设备及参数对照表
查看全部
