Organic-heat-sensitive semiconductive compounds
US4202799A · kind A · utility
24Cited by
1References
5Claims
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Key dates
| Filing date | Jun 13, 1978 |
| Grant date | May 13, 1980 |
| Priority date | — |
| Expiry date | Jun 13, 1998 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01C7/049
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Organic heat-sensitive semiconductive compounds composed of (N-n-propylpyridinium) (7,7,8,8-tetracyanoquinodimethane).sub.2 and (N-n-propylthiazolium) (7,7,8,8-tetracyanoquinodimethane).sub.2 or (N-n-butylthiazolium) (7,7,8,8-tetracyanoquinodimethane).sub.2. The compound using the propylthiazolium component exhibits phase transition phenomena in a wide range of temperatures lower than that of the basic component of (N-n-propylpyridinium) (TCNQ).sub.2. While, the compound using the butylthiazolium component shows inherent temperature hystereses different from that of the basic component.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.