Photocurrent from photocorrosion of aluminum electrode in porphyrin/Al Schottky-barrier cells

被引:25
作者
Murata, K
Ito, S
Takahashi, K
Hoffman, BM
机构
[1] KANAZAWA UNIV,FAC ENGN,DEPT CHEM & CHEM ENGN,KANAZAWA,ISHIKAWA 920,JAPAN
[2] NORTHWESTERN UNIV,DEPT CHEM,EVANSTON,IL 60208
[3] NORTHWESTERN UNIV,MAT RES CTR,EVANSTON,IL 60208
关键词
D O I
10.1063/1.119826
中图分类号
O59 [应用物理学];
学科分类号
摘要
Current-voltage characteristics under illumination of monochromatic light for metal-free tetrabenzporphyrin, metal-free triazatetrabenzporphyrin, and metal-free phthalocyanine In (indium-tin-oxide)/porphyrin/Al sandwich cells seem to show high-energy conversion efficiencies of 14%, 7.7%, and 5.5%, respectively. However, according to the simultaneous measurement of both short-circuit photocurrent and transmittance of the aluminum electrode with time, the transmittance of Al linearly increases as the photocurrent flows into the external circuit. It is concluded that all photocurrents in the above cells arise from photoaccelerated corrosion of aluminum electrode and do not originate from conversion of light energy to electrical energy. (C) 1997 American Institute of Physics.
引用
收藏
页码:674 / 676
页数:3
相关论文
共 9 条
[1]   Phthalocyanines and related compounds double dagger Part XV tetrabenztrazaporphin its preparation from phthalonitrtle and a proof of tts structure [J].
Barrett, PA ;
Linstead, RP ;
Tuey, GAP .
JOURNAL OF THE CHEMICAL SOCIETY, 1939, :1809-1820
[2]   MEROCYANINE ORGANIC SOLAR-CELLS [J].
GHOSH, AK ;
FENG, T .
JOURNAL OF APPLIED PHYSICS, 1978, 49 (12) :5982-5989
[3]   PHOTO-VOLTAIC PROPERTIES OF METAL-FREE PHTHALOCYANINES .1. AL-H2PC SCHOTTKY-BARRIER SOLAR-CELLS [J].
LOUTFY, RO ;
SHARP, JH .
JOURNAL OF CHEMICAL PHYSICS, 1979, 71 (03) :1211-1217
[4]  
MURATA K, IN PRESS INORG CHEM
[5]   PORPHYRIN THIN-FILM CELLS IN ULTRAHIGH-VACUUM - THE REQUIREMENT OF WATER AND OXYGEN FOR PHOTOVOLTAIC RESPONSE [J].
STANBERY, BJ ;
GOUTERMAN, M ;
BURGESS, RM .
JOURNAL OF PHYSICAL CHEMISTRY, 1985, 89 (23) :4950-4956
[6]   Enhanced photocurrent quantum yield by electronic interaction between zinc porphyrin and rhodamine B molecules in Al/Dye/Au sandwich-type solar cell [J].
Takahashi, K ;
Nakamura, J ;
Yamaguchi, T ;
Komura, T ;
Ito, S ;
Murata, K .
JOURNAL OF PHYSICAL CHEMISTRY B, 1997, 101 (06) :991-997
[7]   Enhanced quantum yield in porphyrin/electron-donor double-layer solar cells [J].
Takahashi, K ;
Nakatani, S ;
Yamaguchi, T ;
Komura, T ;
Ito, S ;
Murata, K .
SOLAR ENERGY MATERIALS AND SOLAR CELLS, 1997, 45 (02) :127-139
[8]   SYNTHESIS OF HIGH-PURITY PHTHALOCYANINES (PC) - HIGH INTRINSIC CONDUCTIVITIES IN THE MOLECULAR CONDUCTORS H2(PC)I AND NI(PC)I [J].
THOMPSON, JA ;
MURATA, K ;
MILLER, DC ;
STANTON, JL ;
BRODERICK, WE ;
HOFFMAN, BM ;
IBERS, JA .
INORGANIC CHEMISTRY, 1993, 32 (16) :3546-3553
[9]   PHOTO-VOLTAIC PROPERTIES OF MESO-TETRAARYLPORPHYRINS [J].
YAMASHITA, K ;
KIHARA, N ;
SHIMIDZU, H ;
SUZUKI, H .
PHOTOCHEMISTRY AND PHOTOBIOLOGY, 1982, 35 (01) :1-7