Physicists ntawm ITMO University tau tshawb pom txoj hauv kev tshiab los siv cov ntaub ntawv pob tshab hauvhnub ci hlwbthaum tswj lawv cov efficiency.Cov thev naus laus zis tshiab yog ua raws li cov txheej txheem doping, uas hloov cov khoom ntawm cov ntaub ntawv los ntawm kev ntxiv impurities tab sis tsis siv cov khoom kim tshwj xeeb.

Cov txiaj ntsig ntawm qhov kev tshawb fawb no tau luam tawm hauv ACSApplied Materials & Interfaces ("Ion-gated me me molecule OPVs: Interfacial doping ntawm tus nqi collectors thiab thauj khaubncaws sab nraud povtseg").

Ib qho kev sib tw uas ntxim nyiam tshaj plaws hauv lub hnub ci zog yog kev txhim kho pob tshab nyias-zaj duab xis cov ntaub ntawv photosensitive.Cov yeeb yaj kiab tuaj yeem siv rau sab saum toj ntawm cov qhov rais zoo tib yam los ua kom muaj zog yam tsis muaj kev cuam tshuam rau lub tsev.Tab sis kev tsim lub hnub ci hlwb uas sib txuas ua haujlwm siab nrog lub teeb pom kev zoo yog qhov nyuaj heev.

Cov pa nyias-zaj duab xis hnub ci hlwb muaj opaque hlau rov qab hu uas ntes ntau lub teeb.Cov pob tshab hnub ci siv lub teeb xa rov qab electrodes.Nyob rau hauv cov ntaub ntawv no, ib co photons yog inevitably poob thaum lawv dhau mus, degrading lub ntaus ntawv kev ua tau zoo.Tsis tas li ntawd, kev tsim hluav taws xob rov qab nrog cov khoom tsim nyog yuav kim heev, "said Pavel Voroshilov, tus kws tshawb fawb ntawm ITMO University's School of Physics thiab Engineering.

Qhov teeb meem ntawm kev ua haujlwm qis yog daws los ntawm kev siv doping.Tab sis kom ntseeg tau tias cov impurities raug siv kom raug rau cov khoom siv yuav tsum muaj txoj hauv kev thiab cov khoom kim heev.Cov kws tshawb fawb ntawm ITMO University tau thov cov thev naus laus zis pheej yig dua los tsim "tsis pom" hnub ci vaj huam sib luag - ib qho uas siv cov kua ionic los dope cov khoom, uas hloov cov khoom ntawm cov txheej txheem txheej txheem.

"Rau peb qhov kev sim, peb tau siv lub hnub ci me me raws li lub hnub ci cell thiab txuas nanotubes rau nws.Tom ntej no, peb doped lub nanotubes siv lub rooj vag ion.Peb kuj tau ua tiav cov txheej txheem thauj khoom, uas yog lub luag haujlwm ua Tus nqi los ntawm cov txheej txheem nquag mus txog qhov electrode.Peb tuaj yeem ua qhov no yam tsis muaj lub tshuab nqus tsev thiab ua haujlwm nyob rau hauv ib puag ncig.Txhua yam peb tau ua yog tso qee cov kua ionic thiab siv me ntsis voltage los tsim qhov tsim nyog ua haujlwm.” ntxiv Pavel Voroshilov.

Hauv kev sim lawv cov thev naus laus zis, cov kws tshawb fawb muaj peev xwm ua kom lub roj teeb ua haujlwm tau zoo.Cov kws tshawb fawb ntseeg tias tib lub thev naus laus zis tuaj yeem siv los txhim kho kev ua haujlwm ntawm lwm hom hnub ci hlwb.Tam sim no lawv npaj yuav sim nrog cov khoom sib txawv thiab txhim kho doping thev naus laus zis nws tus kheej.