A perovskite cell with a record-high-Voc of 1.61 V based on solvent annealed CH3NH3PbBr3/ICBA active layer

被引:127
作者
Wu, Chun-Guey [1 ,2 ]
Chiang, Chien-Hung [2 ]
Chang, Sheng Hsiung [2 ]
机构
[1] Natl Cent Univ, Dept Chem, Jhongli 32001, Taiwan
[2] Natl Cent Univ, Res Ctr New Generat Photovolta, Jhongli 32001, Taiwan
关键词
OPEN-CIRCUIT VOLTAGE; HYBRID SOLAR-CELLS; HALIDE PEROVSKITES; HIGH-EFFICIENCY; LOW-COST; PERFORMANCE; BROMIDE; PHOTOLUMINESCENCE; PASSIVATION;
D O I
10.1039/c5nr07739g
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
A high open-circuit voltage inverted perovskite solar cell based on a CH3NH3PbBr3 absorber and ICBA acceptor is reported. The CH3NH3PbBr3 film fabricated under ambient atmosphere at a moderate temperature (100 degrees C) using a two-step spin-coating method is composed of aggregated nano-grains. Upon solvent annealing of the CH3NH3PbBr3/ICBA film, the efficiency of the resulting cell increases from 1.71% to 7.50% with a remarkably high open circuit voltage (V-oc) of ca. 1.60 V. ICBA acts not only as a high LUMO acceptor to realize high V-oc but also as a mending agent to increase the efficiency of the cell by penetrating into the defects/voids of the CH3NH3PbBr3 film via solvent annealing as evidenced by TRPL, XPS and SEM data. Solvent annealing of the active layer was proved to be simple and effective device engineering to improve the efficiency of the perovskite cell based on a low quality film and the V-oc of the inverted perovskite cell can be tuned by the LUMO level of the acceptor were revealed. The CH3NH3PbBr3/ICBA film is semi-transparent with an average 50% transmittance under visible light. The moderatetemperature processed CH3NH3PbBr3 solar cell with high V-oc and a semi-transparent absorber has great potential for application as the top cell in a tandem solar cell.
引用
收藏
页码:4077 / 4085
页数:9
相关论文
共 41 条
[21]   Overcoming ultraviolet light instability of sensitized TiO2 with meso-superstructured organometal tri-halide perovskite solar cells [J].
Leijtens, Tomas ;
Eperon, Giles E. ;
Pathak, Sandeep ;
Abate, Antonio ;
Lee, Michael M. ;
Snaith, Henry J. .
NATURE COMMUNICATIONS, 2013, 4
[22]  
Malinkiewicz O, 2014, NAT PHOTONICS, V8, P128, DOI [10.1038/NPHOTON.2013.341, 10.1038/nphoton.2013.341]
[23]   MATERIALS SCIENCE Fast-track solar cells [J].
McGehee, Michael D. .
NATURE, 2013, 501 (7467) :323-325
[24]   First-Principles Modeling of Mixed Halide Organometal Perovskites for Photovoltaic Applications [J].
Mosconi, Edoardo ;
Amat, Anna ;
Nazeeruddin, Md. K. ;
Graetzel, Michael ;
De Angelis, Filippo .
JOURNAL OF PHYSICAL CHEMISTRY C, 2013, 117 (27) :13902-13913
[25]   Enhanced Photoluminescence and Solar Cell Performance via Lewis Base Passivation of Organic Inorganic Lead Halide Perovskites [J].
Noel, Nakita K. ;
Abate, Antonio ;
Stranks, Samuel D. ;
Parrott, Elizabeth S. ;
Burlakov, Victor M. ;
Goriely, Alain ;
Snaith, Henry J. .
ACS NANO, 2014, 8 (10) :9815-9821
[26]   Chemical Management for Colorful, Efficient, and Stable Inorganic-Organic Hybrid Nanostructured Solar Cells [J].
Noh, Jun Hong ;
Im, Sang Hyuk ;
Heo, Jin Hyuck ;
Mandal, Tarak N. ;
Seok, Sang Il .
NANO LETTERS, 2013, 13 (04) :1764-1769
[27]   Organometal Perovskite Light Absorbers Toward a 20% Efficiency Low-Cost Solid-State Mesoscopic Solar Cell [J].
Park, Nam-Gyu .
JOURNAL OF PHYSICAL CHEMISTRY LETTERS, 2013, 4 (15) :2423-2429
[28]   "Plastic" Solar Cells: Self-Assembly of Bulk Heterojunction Nanomaterials by Spontaneous Phase Separation [J].
Peet, Jeffrey ;
Heeger, Alan J. ;
Bazan, Guillermo C. .
ACCOUNTS OF CHEMICAL RESEARCH, 2009, 42 (11) :1700-1708
[29]   DYNAMIC DISORDER IN METHYLAMMONIUMTRIHALOGENOPLUMBATES(II) OBSERVED BY MILLIMETER-WAVE SPECTROSCOPY [J].
POGLITSCH, A ;
WEBER, D .
JOURNAL OF CHEMICAL PHYSICS, 1987, 87 (11) :6373-6378
[30]   Voltage output of efficient perovskite solar cells with high open-circuit voltage and fill factor [J].
Ryu, Seungchan ;
Noh, Jun Hong ;
Jeon, Nam Joong ;
Kim, Young Chan ;
Yang, Seok ;
Seo, Jangwon ;
Seok, Sang Il .
ENERGY & ENVIRONMENTAL SCIENCE, 2014, 7 (08) :2614-2618