公开(公告)号：US11837873B2

公开(公告)日：2023-12-05

申请号：US17345078

申请日：2021-06-11

申请人： Massachusetts Institute of Technology

发明人： Hiroki Isobe ,  Qiong Ma ,  Liang Fu ,  Nuh Gedik ,  Suyang Xu ,  Pablo Jarillo-Herrero

IPC分类号： H02J50/20 ,  H02J50/27 ,  H02J50/00 ,  H02M1/42 ,  H02M7/04 ,  B82Y15/00

CPC分类号： H02J50/001 ,  H02J50/27 ,  H02M1/4208 ,  H02M7/04 ,  B82Y15/00

摘要： Rectification is a process that converts electromagnetic fields into direct current (DC). Such a process underlies a wide range of technologies, including wireless communication, wireless charging, energy harvesting, and infrared detection. Existing rectifiers are mostly based on semiconductor diodes, with limited applicability to small voltages or high frequency inputs. Here, we present an alternative approach to current rectification that uses the electronic properties of quantum crystals without semiconductor junctions. We identify a new mechanism for rectification from skew scattering due to the chirality of itinerant electrons in time-reversal-invariant but inversion-breaking materials. Our calculations reveal large, tunable rectification effects in graphene multilayers and transition metal dichalcogenides. These effects can be used in high-frequency rectifiers by rational material design and quantum wavefunction engineering.

公开(公告)号：US20210384762A1

公开(公告)日：2021-12-09

申请号：US17345078

申请日：2021-06-11

申请人： Massachusetts Institute of Technology

发明人： Hiroki Isobe ,  Qiong MA ,  Liang FU ,  Nuh GEDIK ,  Suyang XU ,  Pablo Jarillo-Herrero

IPC分类号： H02J50/00 ,  H02J50/27 ,  H02M7/04 ,  H02M1/42

摘要： Rectification is a process that converts electromagnetic fields into direct current (DC). Such a process underlies a wide range of technologies, including wireless communication, wireless charging, energy harvesting, and infrared detection. Existing rectifiers are mostly based on semiconductor diodes, with limited applicability to small voltages or high frequency inputs. Here, we present an alternative approach to current rectification that uses the electronic properties of quantum crystals without semiconductor junctions. We identify a new mechanism for rectification from skew scattering due to the chirality of itinerant electrons in time-reversal-invariant but inversion-breaking materials. Our calculations reveal large, tunable rectification effects in graphene multilayers and transition metal dichalcogenides. These effects can be used in high-frequency rectifiers by rational material design and quantum wavefunction engineering.